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Orion / Yale Bright Star Catalog (HR)

«Yale Bright Star Catalogue, 5th Revised Ed.» Hoffleit D., Warren Jr W.H., 1991 ^[154]
HR	B	F	DM	HD	SAO	FK5	IR	M*	ADS	VarID	RA	Dec	vMag	spType	dMag	Sep	Remarks
HR 1507			BD+10 621	30034	94095			W		1705	04 44 25.8	+11 08 46	5.40	F0V	5.8	74.7	G:In Hyades cluster; Mel 25 #111.,VAR:Delta Sct? In Hyades instability strip.
HR 1519			BD+11 646	30210	94111	2353		W			04 46 01.7	+11 42 20	5.37	A2m	7.5	93.8	G:In Hyades cluster; Mel 25 #112.
HR 1522			BD-03 884	30321	131481						04 46 24.1	-02 57 16	6.33	A2V
HR 1534			BD+03 681	30545	112098						04 48 44.6	+03 35 18	6.03	K1III
HR 1543	π³	1	BD+06 762	30652	112106	1134	I	W		1731	04 49 50.4	+06 57 41	3.19	F6V	5.5	94.6	D:Visual companion probably optical.,N:Designated Tabit by Becvar but Allen gives Thabit as Burritt's name for an unlettered star on his atlas, the Upsilon,N:of Heis (HR 1855). The superscripts for Pi Ori adopted in the Harvard catalogues and taken over in the BS,N:correspond to the Heis atlas and Argelander's identifications of Flamsteed numbers. Very many old catalogues follow the,N:BAC. Heis superscripts 1,2,3,4 are respectively 4,2,1,3 in the BAC.,VAR:Delta Sct? Amp. 0.05V.
HR 1544	π²	2	BD+08 777	30739	112124		I				04 50 36.7	+08 54 01	4.36	A1Vn			N:See HR 1543.,R:Radius relative to Sun = 2.0.
HR 1552	π⁴	3	BD+05 745	30836	112142	179				1742	04 51 12.4	+05 36 18	3.69	B2III+B2IV			G:Ori OB1.,N:See HR 1543.,SB:9.5191d, K 25.8k/s, V0 +23.3k/s, asini 3.38.
HR 1553			BD+09 668	30870	112150						04 51 43.4	+09 58 30	6.11	B5V			N:Formerly 1 Aur now in Perseus.
HR 1556	ο¹	4	BD+14 777	30959	94176	1136	I			Omi1 Ori	04 52 32.0	+14 15 02	4.74	S3.5/1-			G:Wolf 630 group.,S:Also classified S4Zr1Ti4 and M3.2IIIas.,VAR:SRb 4.65 - 4.88V, about 30d.
HR 1562		5	BD+02 800	31139	112179		I			1755	04 53 22.8	+02 30 29	5.33	M1III
HR 1565			BD+01 847	31209	112191						04 53 55.8	+01 34 10	6.61	A1Vn
HR 1567	π⁵	8	BD+02 810	31237	112197	180				Pi5 Ori	04 54 15.1	+02 26 26	3.72	B3III+B0V			G:Ori OB1.,SB:3.700373d, K 57.9k/s, V0 +24.2k/s, asini 2.95.,VAR:Ell 3.66 - 3.73V, 3.700363d.
HR 1569		6	BD+11 675	31283	94197	2368		S			04 54 46.9	+11 25 34	5.19	A3V
HR 1570	π¹	7	BD+09 683	31295	94201			W			04 54 53.8	+10 09 03	4.65	A0Vp	4.2	171.6	G:Hyades?,N:See HR 1543.,R:Radius relative to Sun = 2.7.,S:Lambda Boo star, Ca, Mg 4481 wk.
HR 1571			BD+07 755	31296	112203	2369	I			1763	04 54 47.8	+07 46 45	5.33	gK1
HR 1574			BD+00 893	31331	112206						04 54 50.7	+00 28 03	5.99	B5V
HR 1576			BD+14 787	31373	94212						04 55 50.3	+15 02 24	5.81	B9V
HR 1578			BD+05 769	31411	112220						04 55 58.4	+05 23 57	6.50	A0V
HR 1580	ο²	9	BD+13 740	31421	94218		I		3540		04 56 22.3	+13 30 52	4.07	K2-IIIFe-1	7.5	100.4	D:Optical group.,G:Hyades?,S:Also classified K2IIIbCN-1.
HR 1591			BD-01 762	31623	131625	2373					04 57 17.2	-01 04 02	6.23	F2
HR 1596			BD-02 1080	31739	131640				3570		04 58 10.8	-02 12 45	6.35	A2V	5.5	21.0
HR 1600			BD+14 796	31764	94240				3579 A	1788	04 58 59.4	+14 32 34	6.09	B7V	1.5	39.3	D:AB probably optical. B, 8.0v B9; C, 9.8v at 54"; D, by Wallenquist, mag. diff 7.1 at 90".
HR 1601	π⁶	10	BD+01 872	31767	112281		I			1786	04 58 32.9	+01 42 51	4.47	K2-II
HR 1609			BD+03 736	32039	112304				3597 B	1800	05 00 32.6	+03 36 55	7.03	B9Vn	0.4	21.3	D:Fixed with HR 1610.
HR 1610			BD+03 737	32040	112305				3597 A	1800	05 00 33.9	+03 36 58	6.66	B9Vn	0.4	21.3	D:Fixed with HR 1609. Colors for combined light.
HR 1613			BD-02 1095	32115	131684						05 00 39.8	-02 03 56	6.32	A8IV
HR 1618			BD+00 923	32263	112334	2376				1806	05 01 50.3	+00 43 20	5.92	K0
HR 1619			BD+01 886	32273	112340				3623 A		05 02 00.0	+01 36 32	6.24	B8V	1.3	14.2	D:BC binary 7.7, 10.7v sep. 0.5"; AxBC binary, B = GC 6148 A1IV?, vsini 53:k/s; D, 9.5 at 130".
HR 1638		11	BD+15 732	32549	94290	1140				V1032 Ori	05 04 34.1	+15 24 15	4.68	A0pSi			G:Member of Pleiades group.,VAR:Alpha CV, 4.65 - 4.69V, amp. 0.03y, 4.6398d.
HR 1646			BD-03 998	32686	131742	2378					05 04 54.5	-03 02 23	6.05	B5IV			G:Ori OB1a assoc.
HR 1648			BD+00 939	32736	112406		I			W Ori	05 05 23.7	+01 10 39	6.17	C6II			VAR:SRb 8.2 - 12.4p, 212d. Mean mag. varies in period 2450d.
HR 1662		13	BD+09 736	33021	112436			W			05 07 38.3	+09 28 19	6.17	G1IV	3.8	124.0	G:Wolf 630 group; Hyades?
HR 1664		14	BD+08 866	33054	112440				3711		05 07 52.9	+08 29 54	5.34	Am	0.8	0.7	D:5.78 Am, 6.62 Am, 198.9y, a = 1.04". Mean mass 1.7 solar. Combined mag., colors. CPM with ADS 3712 = GC6270, 9.8, 8 K2,D:sep. 3" at 348".,DYN:0.021".
HR 1672		16	BD+09 743	33254	112467	1142		W		1849	05 09 19.6	+09 49 46	5.43	A2m	4.5	168.0	G:Hyades cluster; Mel 25 #130.,R:Radius relative to Sun = 2.2.,S:Spectrum in violet indicates luminosity III; G-band region, V.,SB:155.83d, K 8.2k/s, V0 +42.9k/s, asini 13.0.,VAR:2.87d not confirmed.
HR 1676		15	BD+15 752	33276	94359			W			05 09 42.0	+15 35 50	4.82	F2IV			D:Suspected visual double probably single: unresolved by speckle interferometry.
HR 1681			BD-00 867	33419	131834						05 10 03.2	-00 33 55	6.10	K0III
HR 1684			BD+15 759	33554	94377	2391	I				05 11 41.6	+16 02 44	5.18	K5III
HR 1685			BD-02 1161	33555	131847						05 10 58.0	-02 15 14	6.25	K1-IVa
HR 1687			BD-02 1165	33608	131852	2390					05 11 19.2	-02 29 27	5.90	F5V
HR 1690			BD+00 974	33647	112505				3767	V1085 Ori	05 11 41.4	+00 30 53	6.67	B9Vn	0.4	0.1	D:Binary.,G:Ori OB1a assoc.,RV:Period 21.4d.,S:Hg, Mn star; late type close companion.,VAR:Amp. 0.003V, 0.565d.
HR 1691			BD+00 975	33646	112509				3764		05 11 45.3	+01 02 13	5.89	G5III	1.4	1.6	S:Also classified A + G2:III.
HR 1697			BD-06 1109	33833	131873						05 12 48.2	-06 03 26	5.91	G7III
HR 1698	ρ	17	BD+02 888	33856	112528		I		3797	1872	05 13 17.5	+02 51 40	4.46	K0.5III	3.9	6.9	D:AB fixed. B, 8.4v, F7V at 7"; C, 11.8 at 182".,DYN:0.001".,S:Also classified K0.5III.,SB:ADS 3797A, 1031.40d, K 8.7k/s, V0 +40.5k/s, asini 123. Unresolved by speckle interferometry.
HR 1701			BD+01 938	33883	112535				3799		05 13 31.6	+01 58 05	6.09	A5V	0.2	0.5	D:AB 6.9 A4V, 7.1 A6V, 312y, a = 0.383". Combined mag., colors. C, 13v at 7", may be physical.,S:Component B variously classified G, F6III, A6V.
HR 1703			BD+00 988	33946	112543		I	W		1874	05 13 47.2	+00 33 37	6.32	M0V
HR 1704			BD-08 1059	33948	131887						05 13 33.3	-08 08 52	6.37	B5V
HR 1709			BD+04 877	34043	112556	2394	I			1880	05 14 44.1	+05 09 22	5.50	gK4
HR 1713	β	19	BD-08 1063	34085	131907	194	I		3823	1882	05 14 32.3	-08 12 06	0.12	B8Ia: e	6.5	9.5	C:Color excess E(B-V) = +0.00.,D:AxBC, CPM. BC binary, 7.6 B8II, 7.6v sep. 0.12". D, 15.4v at 44". BC also classified B5V+B5V. For B, vsini =<39k/s.,DYN:0.004".,G:Ori OB1; in reflection nebula; member assoc. Tau-Ori R1 at 360 pc.,N:RIGEL; Algebar; Elgebar.,R:Diam. = 0.00243 - 0.00255".,S:Between wavelengths 10660 and 10915 no stellar lines except the chromospheric line He 10830. Weak magnetic field.,SB:ADS 3823B, 9.860d, K 25.0k/s, V0 +19.1, asini 3.37. May be due to pulsation.,VAR:0.03 - 0.30V, 25d. Amp. at 0.58 micrometers about 0.06m.
HR 1717			BD-01 837	34180	131917						05 15 18.4	-01 24 33	6.15	F0IV
HR 1718		18	BD+11 756	34203	94426	2395					05 16 04.1	+11 20 29	5.56	A0V
HR 1724			BD+01 957	34317	112588						05 16 41.1	+01 56 50	6.42	A0V e			G:Field of Ori OB1a but probably not member.,S:Possible H alpha emission.
HR 1735	τ	20	BD-07 1028	34503	131952	195			3877		05 17 36.4	-06 50 40	3.60	B5III	7.2	36.0
HR 1746		21	BD+02 916	34658	112624					1922	05 19 11.2	+02 35 45	5.34	F5II v			G:Ori OB1.
HR 1748			BD-01 859	34748	131983						05 19 35.2	-01 24 44	6.34	B1.5Vn			G:Ori OB1a.
HR 1759			BD-05 1225	34880	132004				3926		05 20 26.4	-05 22 00	6.39	B8III	4.7	4.4	D:CPM.,S:Spectra show Mn.
HR 1761			BD+03 857	34959	112660						05 21 19.3	+04 00 43	6.57	B5Vp e			G:Ori OB1a.,S:Shell star. H alpha emission. Also classified B7IIIn.
HR 1763			BD+08 933	34989	112667	2401					05 21 43.6	+08 25 43	5.80	B1V			G:Ori OB1; in reflection nebula; faint HII region. Teardrop shaped nebula in blue light has no counterpart in red.
HR 1764			BD-00 929	35007	132024				3941		05 21 31.8	-00 24 59	5.68	B3V	5.9	37.6	D:Component B optical.,G:Ori OB1a; Orion belt.
HR 1765		22	BD-00 930	35039	132028	1147					05 21 45.7	-00 22 57	4.73	B2IV-V			G:Ori OB1a; Orion belt.,SB:293.0d, K 4.1k/s, V0 +27.9k/s, asini 16.33.
HR 1770		23	BD+03 871	35149	112697				3962 A		05 22 50.0	+03 32 40	5.00	B1V	2.2	31.9	D:Fixed. Secondary 7.17V, -0.12(B-V), -0.63(U-B), B5Vn, B8nnp or B3V, RV -58k/s, vsini 350k/s, optical.,G:Ori OB1a.,RV:Rapidly rotating; may become Be star.
HR 1777			BD+05 905	35242	112708						05 23 31.1	+05 19 21	6.35	A2V			G:Ori OB1.
HR 1778			BD-08 1107	35281	132053				3978		05 23 18.5	-08 24 57	5.90	B8III	1.7	6.0	D:Companion A5IV, vsini 124k/s.
HR 1781			BD-00 936	35299	132057						05 23 42.3	-00 09 35	5.70	B1.5V			G:Ori OB1a; Orion belt.
HR 1782			BD-01 882	35317	132060				3991		05 23 51.4	-00 52 02	6.11	F7V	0.0	2.7	D:BC 7.8 F8V, 7.9 F8V, 48.0y, a = 0.34". AxBC physical.,G:Ori OB1.
HR 1784		29	BD-07 1064	35369	132067		I				05 23 56.8	-07 48 29	4.14	G8IIIFe-0.5
HR 1786			BD+02 947	35407	112729						05 24 36.2	+02 21 10	6.32	B4IVn			G:Ori OB1a.,S:Shell star.
HR 1787		27	BD-01 886	35410	132070		I				05 24 28.9	-00 53 29	5.08	G9III-IVFe-1
HR 1788	η	28	BD-02 1235	35411	132071				4002	Eta Ori	05 24 28.6	-02 23 49	3.36	B1V+B2e	1.4	1.5	D:ADS 4002A is SB triple system, abc with periods 9.2y and 7.989d. Speckle interferometry gives 9.219y, a = 0.036" for,D:for ab x c. Visual components AB, binary, 3.8, 4.8v, sep. 1.650"; C, 9.4v at 115". The total mass of the quintuple,D:system exceeds 50 solar masses, the most massive component being about 17 solar masses.,DYN:0.005".,G:Ori OB1a; Orion belt; cluster CR 70.,RV:Expanding circumstellar shell.,SB:ab, 7.9841d, K 145.2k/s, V0 +35.9k/s, asini 15.9. abc, 9.2y, K 17.5k/s, V0 +19.5k/s, asini 805. Resolved by,SB:speckle interferometry at 4-meter Mayall telescope, sep. 0.04"; vsini secondary 39k/s.,VAR:EA + Beta C 3.31 - 3.60V, 3.14 - 3.35B, 7.989268d. Also sinusoidal pulsation period, amp. 0.05V, 0.30197 or 0.30145d.
HR 1789	ψ¹	25	BD+01 1005	35439	112734	2406				V1086 Ori	05 24 44.8	+01 50 47	4.95	B1Vpe			G:Ori OB1a.,RV:Period 3-5y? Expanding circumstellar shell.,S:Shell star. Also classified B3ne, BeIII-IV.,VAR:Gamma Cas?, 4.92 - 4.96V, 14.50d? Amp. 0.07R, 0.06(R-I).
HR 1790	γ	24	BD+06 919	35468	112740	201	I	W		1972	05 25 07.9	+06 20 59	1.64	B2III	10.5	179.0	G:Ori OB1.,N:BELLATRIX; the Amazon Star.,R:Diam. = 0.00070 - 0.00072".,RV:Expanding circumstellar shell. AEROBEE evidence for mass ejection up to 1600k/s.
HR 1799			BD-10 1178	35536	150420		I				05 25 01.6	-10 19 45	5.61	K5III
HR 1800			BD-00 945	35548	132086				4020		05 25 31.2	-00 32 39	6.57	B9pHgSi	0.6	0.2	D:359.1y, e 0.19, a 0.28", i 50.9d, mag. diff 0.3.,G:Ori OB1a; Orion belt.,S:Manganese star. Spectra also show Hg.
HR 1803			BD+00 1056	35588	112752					1975	05 25 47.0	+00 31 15	6.16	B2.5V			G:Ori OB1a.,SB:2.8884d, K 71.2k/s, V0 +16.8k/s, asini 2.81.
HR 1806			BD-05 1247	35640	132100						05 26 02.4	-05 31 06	6.23	B9.5Vn			G:Ori OB1; sword of Orion.
HR 1807			BD+06 923	35656	112767						05 26 38.8	+06 52 09	6.42	A0Vn
HR 1809			BD+15 822	35693	94556						05 27 13.8	+15 15 28	6.16	A1IV
HR 1811	ψ²	30	BD+02 962	35715	112775				4039	Psi Ori	05 26 50.2	+03 05 44	4.59	B2IV	5.6	2.7	D:AB about 6300y. B, 10.3V, vsini 96k/s. C, 12.3v at 83", optical.,G:Ori OB1a.,SB:ADS 4039A, 2.5260d, K 142.8k/s, V0 +15.8k/s, msin3i 8.74, asini 4.95. Apsidal per. 44.8y.,VAR:Ell 4.55 - 4.61V, 4.31 - 4.34B, 2.52596d.
HR 1819			BD+13 903	35909	94580						05 28 34.8	+13 40 44	6.35	A4V
HR 1820			BD+01 1021	35912	112794						05 28 01.6	+01 17 54	6.41	B2V			G:Ori OB1a.
HR 1826			BD-03 1115	36058	132157				4078		05 28 56.7	-03 18 27	6.39	A0Vn	0.3	0.8	G:Ori OB1c; Orion belt.
HR 1830			BD-03 1116	36134	132170					2022	05 29 23.6	-03 26 47	5.79	K1-III
HR 1832			BD+15 837	36162	94596						05 30 26.1	+15 21 37	5.94	A3Vn
HR 1833			BD+01 1032	36166	112830						05 29 54.8	+01 47 21	5.78	B2V			G:Ori OB1a; Orion belt star.
HR 1834		31	BD-01 913	36167	132176		I		4097	CI Ori	05 29 44.0	-01 05 32	4.71	K5III	5.4	12.5	D:CPM. Companion 9.70V, +0.71(B-V), +0.15(U-B), F7V.,VAR:ADS 4097, cst? 4.67: -4.71V.
HR 1837			BD+04 949	36217	112837					CK Ori	05 30 19.8	+04 12 15	6.21	K2IIIe v			VAR:SR? 5.9 - 7.1v, 120?d.
HR 1839		32	BD+05 939	36267	112849				4115		05 30 47.1	+05 56 53	4.20	B5V	1.3	0.9	D:4.49 B5IV, 5.82 B7V, 586y, a = 1.293". Combined mag. and colors.,DYN:0.008".,G:Cas-Tau OB1; member of Pleiades group. Field of Ori OB1a but probably not member.
HR 1840			BD-07 1099	36285	132192						05 30 20.7	-07 26 05	6.33	B2IV-V			G:Ori OB1c; sword of Orion.
HR 1842		33	BD+03 948	36351	112861				4123		05 31 14.5	+03 17 32	5.46	B1IV+B1.5V	1.0	1.9	D:AB fixed. Combined mag., colors.,G:Ori OB1a.
HR 1848			BD-06 1207	36430	132210						05 31 20.9	-06 42 30	6.22	B2V			G:Ori OB1c; sword of Orion.
HR 1851	δ	34	BD-00 982	36485	132221				4134 C		05 32 00.5	-00 17 04	6.85	B2V	4.6	51.7	C:IR source.,D:Binary with HR 1852, q.v.,G:Ori OB1b3; Orion belt.
HR 1852	δ	34	BD-00 983	36486	132220	206	I		4134 A	Del Ori	05 32 00.4	-00 17 57	2.23	O9.5II	4.6	51.7	C:Color excess E(B-V) = +0.07.,D:Binary with C = HR 1851. Component B, 14.0v at 33".,G:Ori OB1b3; Orion belt; cluster CR 70.,N:MINTAKA; Mintika.,RV:Mass ejection at up to 1800k/s.,S:Nitrogen deficient. Interstellar Lyman alpha absorption observed by AEROBEE rocket. Also classified B2V, O9.5II,,S:O9.5II-III + B0III.,SB:ADS 4134A, 5.7324d, K 101.0k/s, V0 +20.1k/s, asini 7.92. The first SB in which stationary lines were observed.,VAR:ADS 4134A, EA 2.14 - 2.26V, 1.94 - 2.13B, 5.732476d. Intrinsic variability also possible.
HR 1855	υ	36	BD-07 1106	36512	132222						05 31 55.8	-07 18 05	4.62	B0V			G:Ori OB1c; sword of Orion.,N:Thabit; Tabit. See HR 1543.,RV:Expanding circumstellar shell.
HR 1861			BD-01 935	36591	132234				4141	2107	05 32 41.3	-01 35 31	5.35	B1IV	4.5	2.0	D:CPM.,G:Ori OB1b2; Orion belt; HII region.,VAR:Amp. 0.10y.
HR 1863			BD-01 939	36646	132247				4150	2131	05 33 07.2	-01 43 06	6.46	B4Vn	1.8	1.5	D:All components CPM? CD binary, 8.9v A0V, 9.7v sep. 0.8" at 30" from A, physical.,G:Ori OB1b2; Orion belt.
HR 1864		35	BD+14 947	36653	94652	2414					05 33 54.3	+14 18 20	5.64	B3V
HR 1868			BD-01 943	36695	132255					VV Ori	05 33 31.4	-01 09 22	5.34	B1V			G:Ori OB1b2; Orion belt.,SB:AB, 1.4854d, K 128.6k/s, V0 +22.1k/s, msin3i 7.56, asini 2.63; ABC, 119.088d, K 13.5k/s, V0 +3.3k/s, asini,SB:21.2. Spectra (A)B1V, (B)B5-B9V, (C)A7V. Masses 7.6, 3.42, 1.5 solar, respectively.,VAR:EA 5.31 - 5.66V, 5.14 - 5.51p, B1V + B7V, 1.4853784d, i 80.9d. A third component has orbital period 119.09d.
HR 1871			BD+01 1058	36741	112901						05 33 57.6	+01 24 28	6.59	B2V			G:Ori OB1a; Orion belt star.
HR 1872		38	BD+03 964	36777	112904			W			05 34 16.7	+03 46 01	5.36	A2V		0.4	D:Suspected visual double probably single. Unresolved by speckle interferometry.,G:UMa stream; Ori OB1.
HR 1873			BD-01 949	36779	132269				4159		05 34 03.9	-01 02 08	6.22	B2.5V	4.8	27.5	C:Abnormal reddening at 1500A.,D:Companion has K-type spectrum.,G:Ori OB1b2; Orion belt.
HR 1874			BD-01 950	36780	132270		I				05 34 04.0	-01 28 14	5.93	K5III
HR 1876	φ¹	37	BD+09 877	36822	112914	208		S			05 34 49.2	+09 29 22	4.41	B0III			G:Ori OB1; exciting star of HII region S264; Lambda Ori assoc.,SB:8.4y, K 13.3k/s, V0 +33.2k/s, asini 547. Unresolved by speckle interferometry.
HR 1879	λ	39	BD+09 879	36861	112921		I		4179 A	2240	05 35 08.3	+09 56 03	3.54	O8III((f))	2.0	4.4	C:Color excess E(B-V) = +0.12.,D:A,B,C fixed. B is HR 1880. Colors for combined light. Blended mag., 3.39V. C is 11.2v at 29", optical; D, 11.2,D:at 78".,DYN:0.001".,G:In cluster Collinder 69; exciting star of HII region S264; in Lambda Ori assoc. Lambda Ori and surroundings are at,G:same distance as Ori OB1 assoc. but are not members. Lambda Ori member surrounded by expanding HII region.,N:Meissa; Heka.,VAR:Uncertain which of HR 1879 or 1880 is the variable suspect.
HR 1880	λ	39	BD+09 879	36862	0				4179 B	2240	05 35 08.5	+09 56 06	5.61	B0.5V	2.0	4.4	D:See HR 1879.,DYN:0.001".,G:See HR 1879.
HR 1883			BD+10 818	36881	94671				4181	2251	05 35 13.4	+10 14 24	5.60	B9IIIpHg:Mn:	4.2	2.9	D:CPM.,G:In HII region; Lambda Ori assoc.
HR 1886			BD-06 1233	36959	132298				4182 B	2261	05 35 00.9	-06 00 33	5.67	B1V v	0.9	36.2	D:Fixed with HR 1887.,G:Iota Ori cluster; Ori OB1c4; sword of Orion.
HR 1887			BD-06 1234	36960	132301				4182 A		05 35 02.7	-06 00 07	4.78	B0.5V	0.9	36.2	D:Fixed with HR 1886.,G:Iota Ori cluster; Ori OB1c4; sword of Orion.
HR 1890			BD-04 1183	37017	132317					V1046 Ori	05 35 21.8	-04 29 36	6.56	B1.5V			G:Ori OB1c1; Orion northern sword.,S:He strong.,SB:18.65d, K 30k/s, V0 +32k/s, asini 7.34. The 18.65 or 9.3d periods may be spurious, with 0.9015d as the true period.,SB:Rotation vsini 150k/s.,VAR:E:+SX Ari 6.54 - 6.58V, 0.94629d superimposed on SX Ari type, 0.9015d.
HR 1891			BD-04 1184	37016	132319			W			05 35 22.5	-04 25 31	6.24	B2.5V	0.7	0.2	G:Ori OB1c1; Orion northern sword.
HR 1892		42	BD-04 1185	37018	132320		I		4187	2318	05 35 23.2	-04 50 18	4.59	B1V	3.2	1.5	C:Color excess E(B-V) = +0.05.,D:Binary. COPERNICUS spectra and IR photometry yielded no evidence on the companion.,DYN:0.009".,G:In HII region; Ori OB1c2; sword of Orion. No emission from the nebula.
HR 1893	θ¹	41	BD-05 1315	37020	0				4186 A	V1016 Ori	05 35 15.9	-05 23 14	6.73	B0.5V	0.1	117.0	C:Abnormal reddening at 1500A. IR source.,D:ADS 4186AC fixed at 13". C = HR 1895. ADS 4186 and 4188 together appear to form one complex multiple system whose,D:brightest components are ADS 4186C = HR 1895 and ADS 4188A = HR 1897. These two components are double star STF 17 which,D:IDS lists as part of ADS 4188. Thus, the 9 components of ADS 4186 and the 4 of ADS 4188 form one system of at least 12,D:components. Those of ADS 4186 range from mag. 5.4 to 16.7v, all within 22" of A. ADS 4188 has two other,D:companions in addition to HR 1895: B, 6.5v at 53" and C, 7.6v at 129" from HR 1897.,G:Ori OB1d; sword of Orion; a trapezium star.,S:Also classified B0.5Vp.,SB:65.43233d, K 33.3k/s, V0 +13.3k/s.,VAR:ADS 4186A, EA, 6.72 - 6.75V, 65.43233d. Component E is NSV 2291, amp. 0.41V; component F is NSV 2296, 11.0V; component,VAR:H is NSV 2292, 15.6V.
HR 1894	θ¹	41	BD-05 1315	37021	0				4186 B	BM Ori	05 35 16.1	-05 23 07	7.96	B0V	0.1	117.0	C:Abnormal reddening at 1500A.,D:Fixed with HR 1895 at 17". See HR 1893.,G:Ori OB1d; sword of Orion; a trapezium star.,S:Also classified B1-3V+A7IV.,SB:6.4705d, K1 52.8k/s, K2 171k/s, V1 +20.7k/s, V2 +23.6k/s, m1sin3i 5.75, m2sin3i 1.78,,SB:a1sini 4.70, a2sini 15.2.,VAR:ADS 4186B, EA 7.95 - 8.52V, 6.470525d, i 87.7d.
HR 1895	θ¹	41	BD-05 1315	37022	132314		I		4186 C	2294	05 35 16.5	-05 23 23	5.13	O6p v	0.1	117.0	C:Abnormal reddening at 1500A. Color excess E(B-V) = +0.32. Morel and Magenat indicate R-I from -0.13 to 0.00 in,C:disagreement with other Johnson sources.,D:See HR 1893. Fixed with HR 1896 at 13".,G:Ori OB1d; sword of Orion; a trapezium star. Orion Neb, NGC 1976, HII reg.,M:No clear evidence for being X-ray source. Temp. 32000d excites nebulosity to 10600d.,S:Interstellar Lyman alpha absorption observed by AEROBEE rocket. Also classified O6ep, O7Vp, O6.5III.,SB:Inverse P Cyg profile suggests infalling material rather than SB.,VAR:5.10 - 5.16V. He II 4686 suggests var. density of infalling material on time scale of days.
HR 1896	θ¹	41	BD-05 1315	37023	0				4186 D	2295	05 35 17.3	-05 23 16	6.70	B0.5Vp	0.1	117.0	C:Abnormal reddening at 1500A.,D:See HR 1893, 1895.,G:Ori OB1d; sword of Orion; a trapezium star.,VAR:6.65 - 6.72V.
HR 1897	θ²	43	BD-05 1319	37041	132321		I		4188 A	2320	05 35 22.9	-05 24 58	5.08	O9.5Vp e	0.1	117.0	C:Abnormal reddening at 1500A.,D:ADS 4188AB fixed at 52". B is 6.38V, -0.05(B-V), -0.93(U-B), B0.5V; vsini 17k/s. See HR 1893.,G:Ori OB1d; sword of Orion; M42; HII region.,M:May be X-ray source 3U0527-05.,S:Emission is nebular, to red of H beta.,SB:ADS 4188A, 20.96722d, K 90.5k/s, V0 +32.1k/s, asini 25.6. Primary 20 solar masses, secondary over 14 solar.,SB:Possibly the counterpart of X-ray binary 3U0527-05 with perhaps collapsed components.,VAR:5.05 - 5.19V. Component B is NSV 2326, 6.38 - 6.44V.
HR 1898			BD-04 1186	37040	132325				4192		05 35 31.1	-04 21 53	6.38	B2.5IV	2.0	4.2	D:CPM.,G:Ori OB1c1; Orion northern sword.
HR 1899	ι	44	BD-06 1241	37043	132323	209	I		4193	2334	05 35 26.0	-05 54 36	2.77	O9III e	4.5	11.4	C:Color excess E(B-V) = +0.07.,D:AB fixed. B is B7IV; vsini 50k/s.,DYN:0.005".,G:Iota Ori cluster; Ori OB1c4; sword of Orion; HII region.,N:Nair al Saif; Hatysa in Becvar.,RV:ADS 4193A, mass ejection vel. up to 1600k/s. ADS 4193B, +16k/s.,S:Enhanced ultraviolet emission. Helium weak. Interstellar Lyman alpha absorption observed by AEROBEE rocket.,S:Iota Ori B is a helium weak star. Helium deficient by factor of 10 relative to standard stars. P and Ga enormously,S:enhanced. uv 1240 absorption strong; weak 1548.,SB:ADS 4193A, 29.1351d, K 115.2k/s, V0 +26.6k/s, msin3i 15.7, asini 30.0.,VAR:Component B is NSV 2334, 7.4V.
HR 1900			BD-03 1146	37055	132332			W		2350	05 35 35.8	-03 15 10	6.40	B3IV	6.2	1.1	G:Ori OB1c; between belt and sword of Orion.
HR 1901		45	BD-04 1188	37077	132336				4196		05 35 39.5	-04 51 21	5.26	F0III	9.0	19.1	G:Ori OB1c2.
HR 1903	ε	46	BD-01 969	37128	132346	210	I	W		Eps Ori	05 36 12.8	-01 12 07	1.70	B0Ia e	8.7	179.9	C:In both infrared survey and UV CELESCOPE. Color excess E(B-V) = +0.08.,G:Ori OB1b2; Orion belt; cluster NGC 1980; nebulosity.,N:ALNILAM; Alnihan; Alnitam.,R:Diam. = 0.00067 - 0.00069".,RV:UV AEROBEE spectra indicate mass ejection at velocity up to 1800k/s.,S:Nitrogen deficient. Interstellar Lyman alpha absorption observed by AEROBEE rocket. Walborn declares "no e", but,S:Merrill found H alpha emission.,VAR:Alpha Cyg 1.64 - 1.74V.
HR 1906			BD-05 1334	37150	132351					2416	05 36 15.0	-05 38 53	6.54	B3V v			G:Ori OB1d1; sword of Orion.
HR 1907	φ²	40	BD+09 898	37160	112958		I				05 36 54.3	+09 17 26	4.09	K0IIIbFe-2			G:Sigma Pup group.
HR 1908			BD+10 828	37171	94702	2420	I				05 37 04.4	+11 02 06	5.94	K4III
HR 1911			BD-06 1255	37209	132359				4212	2433	05 36 35.7	-06 03 54	5.72	B1V	3.2	5.2	D:CPM. Combined mag., colors.,G:Ori OB1c; sword of Orion.,RV:ADS 4212B, +25.3k/s.
HR 1913			BD+08 1016	37232	112966						05 37 19.3	+08 57 07	6.12	B2IV-V			G:Ori OB1.
HR 1918			BD-06 1262	37303	132375					2467	05 37 27.4	-05 56 18	6.05	B1V v			G:Member of the local association (Pleiades group); Ori OB1c; sword of Orion.
HR 1920			BD+07 953	37320	112979						05 38 01.1	+07 32 29	5.88	B8III
HR 1923			BD-04 1196	37356	132387					2483	05 37 53.4	-04 48 49	6.19	B2IV-V			G:Ori OB1c; sword of Orion.
HR 1931	σ	48	BD-02 1326	37468	132406				4241 AB		05 38 44.8	-02 36 00	3.81	O9.5V	0.8	0.2	D:AB 4.1 O9.5V, 5.1 B0.5V, 170y, a = 0.247". Combined mag. and colors. C, 8.79V, A2V at 11" may be physical; D, 6.62V,,D:-0.20(B-V), B2V, at 13" and E = HR 1932, at 42" CPM with A. A multiple system similar to trapezium. ADS 4241 possibly,D:the most massive visual binary known, 35 solar masses.,DYN:0.003".,G:Ori OB1b1; Orion belt; HII reg.; IC 434; a trapezium system.,S:Hydrogen deficient. Interstellar Lyman alpha absorption observed by AEROBEE rocket.
HR 1932			BD-02 1327	37479	132408				4241 E	V1030 Ori	05 38 47.1	-02 35 39	6.65	B2Vp v	0.8	0.2	D:See HR 1931. Speculation that component E may be captured star older than the other components.,G:Ori OB1b1.,S:Strong HeI lines. Prototype He-rich star.,VAR:SX Ari 6.61 - 6.77V, 1.19080d, amp. 0.10y. H alpha emission profiles same period, possibly also 6d. Variable shell,VAR:spectrum. Magnetic variable.
HR 1933			BD-06 1275	37481	132405						05 38 37.8	-06 34 26	5.96	B1.5IV			G:Ori OB1c; sword of Orion.
HR 1934	ω	47	BD+04 1002	37490	113001	2423				Ome Ori	05 39 11.1	+04 07 17	4.57	B3IIIe v			G:Ori OB1a; in reflection nebula; member assoc. Tau-Ori R1 at 360 pc.,RV:vsini 160k/s also reported.,VAR:Gamma Cas 4.40 - 4.59V. Var. hydrogen emission.
HR 1937		49	BD-07 1142	37507	132411						05 38 53.1	-07 12 47	4.80	A4V			SB:445.74d, K 28.6k/s, V0 -1.5k/s, asini 146. Massive invisible component.
HR 1940			BD-03 1166	37594	132424						05 39 31.2	-03 33 53	6.00	A8V s
HR 1942			BD-09 1197	37635	132425						05 39 30.8	-09 42 24	6.50	B7V			G:Ori OB1 assoc.,S:Weak 4481 MgII line.
HR 1948	ζ	50	BD-02 1338	37742	132444		I		4263 A	2553	05 40 45.5	-01 56 34	2.05 H	O9.7Ib e	2.2	2.4	C:Color excess E(B-V) = +0.09.,D:AB 1.88 O9.5Ib, 4.02 B2III, 1508.6y, a = 2.728". Colors for combined light. Blended magnitude 1.76V, 18 and 6 solar,D:masses. B is HR 1949. C is 9v at 58", possibly physical.,DYN:0.004".,G:Ori OB1b1; Orion belt; exciting star of HII region S277; HII region; IC 434.,M:In line of sight of high-velocity interstellar cloud.,N:ALNITAK; Alnitah.,R:Diam. = 0.00047 - 0.00048".,RV:Mass ejection up to 1800k/s.,S:Nitrogen deficient. Interstellar Lyman alpha absorption observed by AEROBEE rocket. Also classified O9.5Ib and,S:O9.5Iab.,VAR:ADS 4263. Uncertain which component, HR 1948 or 1949, is the variable suspect.
HR 1949	ζ	50	BD-02 1338	37743	0		I		4263 B	2553	05 40 45.6	-01 56 34	4.21 H	B0III	2.2	2.4	D:See HR 1948.,DYN:0.004".,G:Ori OB1; Orion belt; HII region; IC 434.,M:In line of sight of high-velocity interstellar cloud.,S:Interstellar Lyman alpha absorption observed by AEROBEE rocket.
HR 1950			BD-02 1337	37744	132441						05 40 37.3	-02 49 30	6.22	B1.5V			G:Ori OB1b1.
HR 1952			BD-01 1004	37756	132445					2556	05 40 50.6	-01 07 44	4.95	B2IV-V			G:Ori OB1b1; Orion belt.,SB:27.1546d, K 88.5k/s, V0 +36.2k/s, msin3i 6.36, asini 22.6.,VAR:E?, 4.91 - 4.95V.
HR 1955			BD+00 1152	37788	113033						05 41 05.6	+00 20 16	5.93	F0IV			G:Ori OB1.
HR 1957			BD-10 1258	37808	150680					V1051 Ori	05 40 46.0	-10 24 34	6.52	B9.5IIIpSi4200			VAR:Alpha CV, amp. 0.03V, 0.04U, 1.099d.
HR 1959			BD-02 1346	37904	132465				4279		05 41 40.3	-02 53 46	6.42	A9IV-V	0.9	0.1	D:CPM.,G:Ori OB1b1.
HR 1963		51	BD+01 1105	37984	113056	2427	I				05 42 28.6	+01 28 29	4.91	K1III			G:Ori OB1.
HR 1967			BD-06 1293	38089	132477				4299		05 42 53.8	-06 47 46	6.02	F3V	0.4	0.2	D:AB 6.5 F5V, 6.9 F6V, 20.10y, a = 0.201".
HR 1970			BD-01 1012	38099	132480		I			V1197 Ori	05 43 09.3	-01 36 47	6.31	K4III			SB:143.04d, K 9.1k/s, V0 +32.1k/s, asini 17.9.
HR 1978			BD+03 1025	38309	113099				4333		05 45 01.9	+04 00 29	6.09	gF0n	4.2	15.7	D:BC, 9.5, 13.0v, sep. 1.3" at 17" from A, optical.,G:Ori OB1.
HR 1986			BD-04 1235	38495	132515				4361		05 46 02.8	-04 16 06	6.34	K1III+G0IV	2.7	6.9	D:CPM. Companion 8.97V, +0.55(B-V), +0.08(U-B), G0IV.
HR 1987			BD+09 954	38527	113124	2432			4369		05 46 52.1	+09 31 20	5.79	G8III	5.9	17.2	D:Optical.
HR 1988			BD+01 1126	38529	113119						05 46 35.0	+01 10 05	5.95	G4V			G:Ori OB1.
HR 1999		52	BD+06 1027	38710	113150				4390		05 48 00.2	+06 27 15	5.27	A5V	0.1	1.4	D:Binary. Companion F0.,DYN:0.005".,SB:vsini of secondary 70k/s.
HR 2001			BD-10 1281	38735	150814			S		V1031 Ori	05 47 26.7	-10 31 59	6.03	A4V			SB:Spectroscopic triple system with nearly equal components.,VAR:EA 6.02 - 6.43V, 6.1 - 6.5p. 3.4057d. Redder at min.
HR 2004	κ	53	BD-09 1235	38771	132542	220	I			2641	05 47 45.4	-09 40 11	2.06	B0.5Ia v			C:Color excess E(B-V) = +0.07.,G:Ori OB1.,N:SAIPH.,R:Diam. 0.00044 - 0.00045".,S:Deficient in ultraviolet relative to most early-type supergiants shortward of 2800A.
HR 2007			BD-04 1244	38858	132554	1155					05 48 34.9	-04 05 41	5.97	G4V
HR 2014			BD+09 978	39007	113179						05 50 02.6	+09 52 16	5.80	G8III			G:Probable Hyades group.
HR 2019			BD+04 1052	39051	113186	2439	I				05 50 13.1	+04 25 24	5.97	gK2
HR 2024			BD+01 1148	39118	113198					Var	05 50 30.0	+02 01 28	5.98	G8III+A0IV			S:vsini of secondary 85k/s.,SB:209.20d, K 19.2k/s, V0 +15.3k/s, asini 50.1.,VAR:Amp. 0.082.
HR 2030			BD+19 1110	39286	94942						05 52 23.4	+19 52 05	6.06	G2IIIe+B8III			S:vsini of secondary =<50k/s. Luminosity also classified V.
HR 2031		55	BD-07 1187	39291	132591	2442				2677	05 51 22.0	-07 31 05	5.35	B2IV-V			G:Ori OB1c.
HR 2037		56	BD+01 1151	39400	113220	2444	I		4467	2690	05 52 26.4	+01 51 18	4.78	K1.5IIb	8.4	43.4
HR 2038			BD+20 1156	39417	77680						05 53 19.1	+20 17 57	6.71	B9V
HR 2039			BD-09 1255	39421	132603						05 52 07.6	-09 02 29	5.97	A2Vnp			S:Lambda Boo star, Mg 4481 wk.
HR 2047	χ¹	54	BD+20 1162	39587	77705		I	D			05 54 22.9	+20 16 34	4.41	G0V		0.6	D:Possibly triple system. Magnitudes of separate components unknown.,D:A*, 14.25y, a = 0.095". Probably low-mass companion.,G:In UMa cluster; Sirius group? UMa stream.,R:Occultation diam. = 0.0016".
HR 2048			BD+10 927	39632	94977		I				05 54 13.4	+10 35 13	6.12	G9II
HR 2050			BD+11 964	39662	94979			W			05 54 32.2	+11 45 45	6.59	A2V	5.5	22.7	D:Optical.
HR 2051			BD+03 1071	39685	113253						05 54 15.7	+03 13 31	6.31	K0
HR 2052		57	BD+19 1126	39698	94986	2447				2722	05 54 56.7	+19 44 59	5.92	B2V	2.2	0.0	G:Cas-Tau OB1.,SB:6.1, 8.3v, sep. 0.0006", 7.9969d, K 70k/s, V0 +21k/s, msin3i 8.84, asini 7.70.,VAR:Beta C?, amp. <0.02V.
HR 2057			BD+00 1208	39775	113265		I				05 54 44.1	+00 58 06	6.00	K0III
HR 2058			BD-04 1281	39777	132635						05 54 34.7	-04 03 50	6.57	B1.5V			G:Ori OB1c.
HR 2061	α	58	BD+07 1055	39801	113271	224	I		4506	Alp Ori	05 55 10.3	+07 24 25	0.50	M1-2Ia-Iab e	9.9	174.4	D:Components B-E all 11 to 14.5v at sep. 40" to 174" from A. D 13.5 at 77", optical. Speckle interferometric observations,D:in 1983 November (Karovska et al. 1986, ApJ, 308, 360) show A to be a triple system with closer companion at 0.06",D:(mag. diff. 3.4 at H alpha) and more distant companion at 0.51" (mag. diff. 4.6 at H alpha).,M:Radio star. Circumstellar shell of gas and dust. The gas shell detached from photosphere at about 5 stellar radii. Diam,M:of optically thin dust shell possibly 1".5. Surrounded by reflection nebula. Gas shell up to 100 R, dust shell from 12,M:to 250 R. Highly limb darkened.,N:BETELGEUSE; Betelguex; Betelgeuze; Beteiguex; Al Mankib.,R:The first star whose diameter was measured with the interferometer, .047", by Michelson and Pease at Mt. Wilson in 1920.,RV:Expanding circumstellar shell, extending at least 29" or about 600 stellar radii. If rate constant, initial potassium,RV:ejection about 2700 years ago. 2.85-cm radio emission indicates mass loss.,S:Ultraviolet FeII emission. 5-micron observations indicate carbon monoxide. STRATOSCOPE II observations indicate infrared,S:H2O bands. UV observations from OAO-2 indicate C and O underabundant. MgII emissions indicate a cooler shell,S:surrounding the supergiant.,SB:ADS 4506A, 5.781y, K 3.08k/s, V0 +20.33k/s, asini 81.773.,VAR:ADS 4506A, SRc 0.40 - 1.3V, 2335d. Also superimposed waves 200-400d.
HR 2063			BD+20 1171a	39816	77730		I			U Ori	05 55 49.3	+20 10 30	5.40	M6.5IIIe			P:Polarization possibly due to circumstellar dust scattering.,R:Occultation diam. = 0.0143 - 0.01545".,S:Infrared star. OH and water emission. SiO maser source. OH emission strong in infrared. Also H2O microwave,S:emission. IR spectra show water vapor. Strong water bands at light minimum.,VAR:M 4.8 - 12.6v, 368.3d. Period has varied between 367.9 and 376.0d. Colors correspond to 6.72V.
HR 2067			BD+13 1036	39881	95004				4519		05 56 03.5	+13 55 31	6.60	G5IV	1.9	47.5	D:All companions optical.
HR 2070			BD-04 1289	39910	132652						05 55 30.3	-04 36 59	5.87	gK2
HR 2071			BD-04 1291	39927	132653						05 55 35.4	-04 47 18	6.28	A2III
HR 2075			BD+09 1016	39985	113284						05 56 28.0	+09 30 35	5.99	A0IV
HR 2076			BD+11 975	40020	95027	2453					05 56 49.5	+11 31 16	5.87	K2III
HR 2093			BD+01 1168	40282	113306		I				05 57 54.2	+01 13 28	6.22	M0III
HR 2097			BD-01 1078	40347	132700						05 58 11.7	-00 59 39	6.22	K0
HR 2099			BD+12 968	40369	95075				4562		05 58 53.2	+12 48 31	5.70	K2III+A5V	1.0	0.4	D:126.0y, e 0.56, a 0.265", i 75.4d, mag. diff 1.4.,S:Also classified K0III + A7V.
HR 2100		59	BD+01 1171	40372	113315				4555	V1004 Ori	05 58 24.4	+01 50 13	5.90	A5mDel Del	4.7	36.7	SB:2.7405d, K 55.6k/s, V0 +45.3k/s, asini 2.09.,VAR:Delta Sct 5.88 - 5.92V, 0.0611d.
HR 2103		60	BD+00 1239	40446	113321	1161		W			05 58 49.6	+00 33 11	5.22	A1V s	6.6	19.1
HR 2109			BD-01 1083	40574	132723						05 59 37.7	-01 26 40	6.63	B8IIIn
HR 2113			BD-03 1256	40657	132732	2457	I			2770	06 00 03.4	-03 04 27	4.53	K1.5IIIFe-1.5
HR 2124	μ	61	BD+09 1064	40932	113389				4617	2792	06 02 23.0	+09 38 51	4.12	A2V	1.8	0.3	D:AB 4.4 A2V, 6.0 F3V, 17.5d, a = 0.276"; ABxP, 18.25y, a = 0.089". Magnitude and colors for combined light. A is alpha,D:CVn var., SB1, 4.45d; B is SB2, 4.78d. Component C, 14v at 18" probably optical.,DYN:0.023".,G:Mel 25; the Hyades.,S:K/m indicate A3/A7, respectively.,SB:ADS 4617A, 4.4476d, K 28.4k/s, V0 var., asini 1.74. Alternate orbit 4.4478d, K 29.2k/s, V0 +40.9k/s,,SB:asini 1.79. Speckle interferometric sep. 0.153" 1980.94; unresolved 1983.94. ADS 4617AB, 18y, K 14.9k/s,,SB:V0 +43.3k/s, asini 851. ADS 4617B is SB2, 4.78d.,VAR:ADS 4617A, Alpha CV 4.10 - 4.18V.
HR 2127			BD+01 1195	40964	113392						06 02 17.1	+01 41 40	6.59	B8V
HR 2130		64	BD+19 1186	41040	95166			D		2803	06 03 27.3	+19 41 26	5.14	B8III	0.0	0.0	D:Triple system, SB, sep. 0.0014". Third component found by occulation, 6.5v at 0.060".,S:Luminosity also given as V.,SB:14.57d.
HR 2133			BD+11 1009	41076	95170						06 03 24.7	+11 40 51	6.08	A0V s
HR 2135	χ²	62	BD+20 1233	41117	77911			D		2809	06 03 55.2	+20 08 18	4.63	B2Ia t	0.0	0.0	D:Occultation binary, sep. 0.02".,G:Gem OB1.,S:Emission lines possibly variable.,VAR:H alpha profile var.
HR 2144		63	BD+05 1085	41361	113429						06 04 58.2	+05 25 12	5.67	gG7
HR 2145		66	BD+04 1116	41380	113430	230					06 04 58.4	+04 09 31	5.63	G4III
HR 2159	ν	67	BD+14 1152	41753	95259	232					06 07 34.3	+14 46 06	4.42	B3V			G:Cas-Tau OB1; member of Pleiades group.,SB:131.211d, K 33.3k/s, V0 +24.1k/s, asini 46.2.
HR 2167			BD+08 1202	42035	113503						06 08 47.2	+08 40 12	6.55	B9V
HR 2174			BD+02 1139	42111	113507				4749		06 08 57.9	+02 29 58	5.73	A3Vn v	1.2	29.3	D:AB CPM. B is 6.94V, +0.04(B-V), -0.02(U-B), A0V, vsini 120k/s. Component C, 8.9v at 118". HD erroneously assigned the,D:preceding number, HD 42092, to the fainter following component of ADS 4749. Consequently the data for the two primary,D:components are sometimes interchanged. vsini for component A is 250k/s.,VAR:ADS 4749A, spectrum variable. Sometimes shows shell features.
HR 2184			BD+18 1112	42351	95337						06 11 01.8	+18 07 46	6.33	K1II
HR 2191			BD+13 1151	42477	95352						06 11 27.9	+13 38 19	6.04	A0Vnn
HR 2193		68	BD+19 1253	42509	95359	2471		W			06 12 01.3	+19 47 26	5.75	B9.5V	3.5	86.3
HR 2198		69	BD+16 1035	42545	95365						06 12 03.3	+16 07 50	4.95	B5Vn			G:Cas-Tau OB1; member of Pleiades group.,SB:19.0d, K 15k/s.
HR 2199	ξ	70	BD+14 1187	42560	95362			W			06 11 56.4	+14 12 32	4.48	B3IV	7.9	40.0	G:Member of the local association (Pleiades group); Cas-Tau OB1.,SB:45.10d, K 22.4, V0 +19.3, asini 13.41.
HR 2207			BD+18 1129	42784	95397						06 13 33.4	+18 40 49	6.58	B8Vnn			G:Member of the local association (Pleiades group).
HR 2208			BD+10 1050	42807	95394						06 13 12.6	+10 37 39	6.45	G2V
HR 2210			BD-02 1512	42824	132965						06 12 44.4	-02 30 16	6.62	A2V
HR 2214			BD+17 1182	42954	95419			W			06 14 28.6	+17 54 23	5.88	A5Vm	0.0	0.5	D:Binary. Occultation indicates sep. 0.27".
HR 2218			BD-03 1345	43023	132994						06 13 54.3	-03 44 29	5.83	G8III			G:Probable Hyades group.
HR 2220		71	BD+19 1270	43042	95432				4842		06 14 50.9	+19 09 23	5.20	F6V	5.6	25.4	D:B and C optical. Aitken and Wallenquist disagree on magnitude difference: Aitken AB 6.0, AC 5.3, AD 4.8; Wallenquist,D:5.6, 7.6, 7.3, respectively. Separation 25", 76" and 86", respectively.
HR 2222			BD+13 1173	43112	95444	2474	I	W		2878	06 15 08.5	+13 51 04	5.91	B1V	6.6	21.3	D:Companion, RV -2k/s, optical.,M:Old disk population runaway star.
HR 2223		72	BD+16 1060	43153	95447						06 15 25.1	+16 08 35	5.30	B7V
HR 2229		73	BD+12 1081	43247	95457						06 15 45.0	+12 33 04	5.33	B9II-III
HR 2231			BD+06 1172	43285	113650						06 15 40.1	+06 03 58	6.07	B6Ve
HR 2232			BD+04 1181	43317	113653	2478					06 15 47.0	+04 17 01	6.64	B3IV
HR 2233			BD-00 1234	43318	133028	2477					06 15 34.3	-00 30 44	5.65	F6V
HR 2235			BD+17 1191	43335	95473		I				06 16 23.8	+17 10 53	6.39	K5II
HR 2236			BD+01 1275	43358	113656			W			06 15 54.0	+01 10 09	6.37	F5IV:	0.0	0.2	D:6.8 F5, 7.0, 28.1y, a = 0.165".
HR 2241		74	BD+12 1084	43386	95476	1169		W			06 16 26.6	+12 16 20	5.04	F5IV-V	4.2	204.0
HR 2246			BD+01 1278	43461	113668						06 16 21.2	+01 04 49	6.63	B6V
HR 2247		75	BD+09 1173	43525	113675	2480			4890		06 17 06.6	+09 56 33	5.39	A2V	0.2	0.1	D:AP 6.1 A2IV, 9.0y, a = 0.109". B and C both 8.4v at 63" and 117", both optical. D, 11v at 5" from C. AP resolved,D:by speckle interferometry 1983.93, sep. 0.06". Aa resolved by speckle interferometry 1983.93, but unresolved 1983.94.,DYN:0.020".
HR 2248			BD+07 1216	43526	113673						06 16 58.4	+07 03 11	6.57	B7III
HR 2250			BD+14 1233	43583	95494						06 17 33.3	+14 03 30	6.59	A0V
HR 2251			BD+05 1168	43587	113683			W		2896	06 17 16.1	+05 06 01	5.71	F9V	3.9	189.7
HR 2253			BD+14 1235	43683	95502	2481			4901		06 18 05.6	+14 22 58	6.16	A3V	6.9	25.4	D:AB binary. B, 13.0v at 2". C, optical? 13.28V, +0.56(B-V), +0.34(U-B).
HR 2258			BD+17 1203	43819	95519					V1155 Ori	06 19 01.8	+17 19 30	6.32	B9IIIpSiCr:			VAR:Amp. 0.04U, 1.0785d. H and K lines vary.
HR 2259			BD+09 1184	43821	113710						06 18 40.5	+09 02 50	6.24	K0			SB:1325d, k 10.92k/s, v0 -24.85k/s, asini 179.
HR 2269			BD+14 1247	44033	95543		I			2917	06 20 04.2	+14 39 04	5.69	K3Ib			VAR:Lc?, 5.68 - 5.81V.
HR 2275			BD-02 1564	44131	133118		I			2918	06 19 59.6	-02 56 40	4.90	M1III
HR 2276			BD+11 1128	44173	95563						06 20 52.3	+11 45 23	6.54	B5III
HR 2287			BD+12 1123	44497	95599						06 22 36.5	+12 34 12	6.00	F0III
HR 2302			BD+16 1135	44867	95641						06 24 52.9	+16 03 25	6.33	G9III
HR 2308			BD+14 1283	44984	95659		I			BL Ori	06 25 28.1	+14 43 19	6.24	C5II			S:Technetium found in spectrum.,VAR:Lb 8.5 - 9.7p.

Legende

Key to columns ^[154]
HR	Harvard Revised Number = Bright Star Number
B	Bayer designation (greek letter)
F	Flamsteed number
DM	Durchmusterung Identification (BD = Bonn; CD = Cordoba; CP = Cape Photographic)
HD	Henry Draper Catalog Number
SAO	SAO Catalog Number
FK5	FK5 star Number
IR	I if infrared source
M*	Double or multiple-star code. (A = Astrometric binary; D = Duplicity discovered by occultation; I = Innes, Southern Double Star Catalogue (1927); R = Rossiter, Michigan Publ. 9, 1955; S = Duplicity discovered by speckle interferometry; W = Worley (1978) update of the IDS;)
ADS	Aitken's Double Star Catalog (ADS) designation
VarID	Variable star identification
RA	Right Ascension (J2000.0)
Dec	Declination (J2000.0)
vMag	Visual magnitude
spType	Spectral type
dMag	Magnitude difference of double, or brightest multiple
Sep	Separation of components in Dmag if occultation binary (arcsec)
Remarks	Note on Category (C = Colors; D = Double and multiple stars; DYN = Dynamical parallaxes; G = Group membership; M = Miscellaneous; N = Star names; P = Polarization; R = Stellar radii or diameters; RV = Radial and/or rotational velocities; S = Spectra; SB = Spectroscopic binaries; VAR = Variability)

Kataloge

Orion / Yale Bright Star Catalog (HR)

Legende

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