Constellation Corona Borealis (Northern Crown)

Properties

The constellation is east of the boat's 'cornet'. It contains an arc of seven stars, open to the north, all of which, with the exception of one, belong to the 4th magnitude; the exception is the main star 2nd magnitude, Gemma, which appears like a special gem. The constellation area is 179 square degrees and the center of the constellation culminates around midnight on May 20th. ^{[9, 15]}

Stars with Proper Names:

α Coronae Borealis: Alphekka, Alphecca, Alphacca, Gemma, Gnosia, The Jewel, Gnosia Stella Coronae, Ashtaroth
β Coronae Borealis: Nusakan

Data for constellation Corona Borealis ^[150]
IAU Name	Corona Borealis
IAU Genitive	Coronae Borealis
IAU Abbr.	CrB
English Name	Northern Crown
Season (47° N)	January … September
Right Ascension	15^h 16^m 04^s … 16^h 25^m 08^s
Declination	25° 32' 18" … 39° 42' 43"
Area	179 deg²
Neighbours (N↻)	Her, Boo, Ser

Mythology and History

Corona Borealis is an ancient constellation that represents the gem-studded tiara that Dionysus bequeathed to Ariadne as a wedding gift and hurled it into the sky after her death. Another interpretation sees in it the crown with which Theseus thanked Ariadne for her rescue operation from the labyrinth. Still others suspected it was a wreath of honor. ^[7]

The natives of Australia call the constellation Woomera and see it as the weapon that we call boomerang. The Indians in the Rio Negro river basin in northern Brazil see an armadillo in Corona Borealis because of the semicircular arrangement that appears to be open at the bottom.^[20]

Catalogs

Yale Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991) ^[154]
HR	B	F	RA [hms]	Dec [dms]	vMag	spType	dMag	Sep ["]
5709	ο	1	15 20 08.5	+29 36 58	5.51	K0III	3.9	147.3
5727	η	2	15 23 12.3	+30 17 16	5.58 H	G0V	0.3	0.5
5728	η	2	15 23 12.3	+30 17 16	6.08 H	G3V	0.3	0.5
5747	β	3	15 27 49.7	+29 06 21	3.68	F0p v	1.5	0.3
5778	θ	4	15 32 55.8	+31 21 33	4.14	B6Vnne	1.4	0.5
5793	α	5	15 34 41.3	+26 42 53	2.23	A0V+G5V
5800	μ	6	15 35 15.0	+39 00 36	5.11	M1.5III-IIIb
5833	ζ¹	7	15 39 22.2	+36 38 12	6.00 H	B9V	1.0	6.4
5834	ζ²	7	15 39 22.7	+36 38 09	5.07 H	B7V	1.0	6.4
5849	γ	8	15 42 44.6	+26 17 44	3.84	B9IV+A3V	1.5	0.2
5855	π	9	15 43 59.3	+32 30 57	5.56	gG9
5889	δ	10	15 49 35.7	+26 04 06	4.63	G3.5III-IVFe-1
5901	κ	11	15 51 13.9	+35 39 27	4.82	K1IVa	6.7	134.6
5936	λ	12	15 55 47.6	+37 56 49	5.45	F0IV	4.5	94.3
5947	ε	13	15 57 35.3	+26 52 40	4.15	K2IIIab	7.3	101.4
5968	ρ	15	16 01 02.7	+33 18 13	5.41	G0+VaFe-1	3.2	89.6
5971	ι	14	16 01 26.6	+29 51 04	4.99	A0p:Hg:
6018	τ	16	16 08 58.3	+36 29 27	4.76	K1-III-IV	8.3	2.2
6063	σ	17	16 14 40.8	+33 51 31	5.64	G0VCaIIe	1.0	6.4
6064	σ	17	16 14 40.8	+33 51 30	6.66 H	G1V	1.0	6.4
6074	υ	18	16 16 44.8	+29 09 01	5.78	A3V	4.3	123.4
6103	ξ	19	16 22 05.8	+30 53 31	4.85	K0III	7.4	185.1
6107	ν¹	20	16 22 21.4	+33 47 57	5.20	M2IIIab	0.1	364.4
6108	ν²	21	16 22 29.2	+33 42 13	5.39	K5III

«Revised New General Catalogue and Index Catalogue», Dr. Wolfgang Steinicke, 2021 ^[277]
Name	RA	Dec	Type	Bmag	Vmag	Dim	Dreyer Description	Identification
NGC 5924	15 22 02.0	+31 13 57	Gx (Sa)	15.5	14.6	0.80 × 0.3	Neb , vF, S, F close s	MCG 5-36-15, CGCG 165-43
NGC 5958	15 34 49.1	+28 39 19	Gx (Sc)	13.4	12.7	1.00 × 1.0	pF, pL, iR, bM, r	UGC 9909, MCG 5-37-3, CGCG 166-9, IRAS 15327+2849
NGC 5961	15 35 16.2	+30 51 51	Gx (Sb)	14.5	14.1	0.80 × 0.3	pF, S, E pf	UGC 9918, MCG 5-37-5, CGCG 166-13, ARAK 478, IRAS 15332+3101
NGC 5974	15 39 02.3	+31 45 35	Gx (Sc)	14.7	14.2	0.60 × 0.3	vF, vS, R, bM	UGC 9952, MCG 5-37-10, CGCG 166-25, ARAK 482, IRAS 15370+3155
NGC 6001	15 47 45.9	+28 38 30	Gx (Sc)	14.3	13.6	1.00 × 1.0	vF, S, R	UGC 10036, MCG 5-37-27, CGCG 166-58
NGC 6002	15 49 42.0	+28 31 36	Gx (S)	14.3	13.4	0.70 × 0.3	Neb 100" s of III 371	CGCG 166-62
NGC 6016	15 55 54.9	+26 58 02	Gx (SBc)	15.0	14.3	1.00 × 0.5	vF, S, E	UGC 10096, MCG 5-38-1, CGCG 167-4, IRAS 15538+2706
NGC 6038	16 02 40.4	+37 21 34	Gx (Sc)	14.2	13.5	1.10 × 1.1	vF, S, R, * 10 sf	UGC 10149, MCG 6-35-26, CGCG 195-8, IRAS 16008+3729
NGC 6069	16 07 41.6	+38 55 53	Gx (S0)	15.3	14.3	0.80 × 0.8	vF * in vF, vS, R neb	MCG 7-33-43, CGCG 223-42
NGC 6076 1	16 11 12.9	+26 52 19	Gx (E0)	15.0	14.0	0.40 × 0.4	vF, S, E	UGC 10253, MCG 5-38-23, CGCG 167-34, near SAO 84233
NGC 6076 2	16 11 13.7	+26 52 25	Gx (E0)	15.4	14.4	0.40 × 0.4	vF, S, E	UGC 10253, MCG 5-38-23, CGCG 167-34, near SAO 84233
NGC 6077	16 11 14.0	+26 55 26	Gx (E1)	14.3	13.3	1.20 × 1.1	F, sbM	UGC 10254, MCG 5-38-24, CGCG 167-35, NPM1G +27.0518, near SAO 84233
NGC 6085	16 12 35.1	+29 21 56	Gx (Sa)	13.9	13.0	1.50 × 1.2	F, S	UGC 10269, MCG 5-38-34, CGCG 167-44, NPM1G +29.0373
NGC 6086	16 12 35.6	+29 29 06	Gx (E3)	13.8	12.8	1.70 × 1.2	F, vS, stellar N	UGC 10270, MCG 5-38-35, CGCG 167-45
NGC 6089 1	16 12 40.3	+33 02 07	Gx (S0-a)	14.7	13.8	0.90 × 0.6	vF, S, R, bM	MCG 6-36-1, CGCG 196-4, CGCG 196-91, KUG 1610+331A
NGC 6089 2	16 12 41.6	+33 02 18	Gx (C)	15.5	14.5	0.30 × 0.3	vF, S, R, bM	MCG 6-36-1, CGCG 196-4, CGCG 196-91
NGC 6092	16 14 04.5	+28 07 34	*2				vF, stellar N
NGC 6096	16 14 46.6	+26 33 34	Gx (Sb)	15.1	14.3	0.90 × 0.4	vF, vS, R, bM	MCG 5-38-44, CGCG 167-57, NPM1G +26.0416
NGC 6097	16 14 26.2	+35 06 33	Gx (S0-a)	14.8	13.9	1.10 × 0.6	Neb * 13 m	MCG 6-36-7, CGCG 196-11
NGC 6102	16 15 36.9	+28 09 32	Gx (Sc)	14.6	13.9	1.20 × 0.8	vF, S, R	UGC 10300, MCG 5-38-47, CGCG 167-60
NGC 6103	16 15 44.5	+31 57 50	Gx (Sbc)	14.7	13.9	0.70 × 0.5	vF, S, R, vglbM	UGC 10302, MCG 5-38-49, CGCG 167-62, IRAS 16138+3205
NGC 6104	16 16 30.6	+35 42 27	Gx (SBa)	14.2	13.3	0.80 × 0.7	vF, S, iR	UGC 10309, MCG 6-36-11, CGCG 196-20, IRAS 16146+3549
NGC 6105	16 17 09.2	+34 52 46	Gx (SBa)	15.3	14.4	0.60 × 0.4	F, S, R, gvlbM	MCG 6-36-13, CGCG 196-23, NPM1G +35.0367, KUG 1615+350B
NGC 6107	16 17 20.1	+34 54 08	Gx (E3)	14.9	13.8	1.50 × 1.1	F, vS	UGC 10311, MCG 6-36-14, CGCG 196-24, KUG 1615+350C, near SAO 65201
NGC 6108	16 17 25.5	+35 08 09	Gx (SBab)	15.2	14.4	1.10 × 1.0	eF, vS, R, lbM	MCG 6-36-15, CGCG 196-25, KUG 1615+352A
NGC 6109	16 17 40.5	+35 00 15	Gx (S0)	13.8	12.7	1.00 × 1.0	F, S, R, gbM	UGC 10316, MCG 6-36-16, CGCG 196-26, KUG 1615+351C
NGC 6110	16 17 43.9	+35 05 15	Gx (Sab)	15.6	14.8	0.60 × 0.3	eF, vS, R, gbM	CGCG 196-27, KUG 1615+352C
NGC 6112	16 18 00.5	+35 06 39	Gx (E2)	15.0	14.0	1.00 × 0.8	vF, vS, R, bM	MCG 6-36-17, CGCG 196-28, NPM1G +35.0371, KUG 1616+352A
NGC 6114	16 18 23.5	+35 10 28	Gx (Sbc)	15.1	14.3	1.20 × 0.6	eF, S, R, glbM	MCG 6-36-19, CGCG 196-30, KUG 1616+352B
NGC 6116	16 18 54.5	+35 09 14	Gx (Sb)	15.1	14.3	2.20 × 0.9	vF, vS, R, gbM	UGC 10336, MCG 6-36-21, CGCG 196-32, KUG 1617+352
NGC 6117	16 19 18.2	+37 05 43	Gx (Sc)	14.3	13.6	1.20 × 1.2	vF, S, R	NGC 6117A, UGC 10338, MCG 6-36-22, CGCG 196-36, IRAS 16174+3712
NGC 6117 A	16 19 18.2	+37 05 43	Sc	14.3	13.6	1.20 × 1.2	vF, S, R	NGC 6117, UGC 10338, MCG 6-36-22, CGCG 196-36, IRAS 16174+3712
NGC 6117 B	16 19 21.6	+37 04 08	Gx (Sbc)	15.9	15.1	0.60 × 0.3	vF, S, R	MCG 6-36-24, KUG 1617+371
NGC 6119	16 19 42.0	+37 48 24	Gx (Sc)	16.0	15.3	0.70 × 0.5	vF, eS, R	MCG 6-36-26, CGCG 196-40, KUG 1617+379
NGC 6120	16 19 48.1	+37 46 27	Gx (Sd/P)	14.5	13.9	1.00 × 0.7	vF, vS, R, D * nf	UGC 10343, MCG 6-36-29, CGCG 196-41, IRAS 16180+3753, 1ZW 141, KUG 1618+378
NGC 6122	16 20 09.4	+37 47 55	Gx (S0)	15.6	14.6	0.90 × 0.3	vF, R, no N	MCG 6-36-32, NPM1G +37.0511
NGC 6126	16 21 27.8	+36 22 38	Gx (S0)	14.6	13.6	1.00 × 1.0	F, vS, R, bMSN	UGC 10353, MCG 6-36-35, CGCG 196-46, KUG 1619+364B, 1ZW 144, NPM1G +36.0396
NGC 6129	16 21 43.2	+37 59 47	Gx (S0)	15.0	14.0	0.80 × 0.8	eF, vS, R, lbM	MCG 6-36-37, CGCG 196-48, NPM1G +38.0362
NGC 6131	16 21 52.3	+38 56 12	Gx (SBc)	13.8	13.3	1.00 × 1.0	vF, pL, iR, dif	NGC 6131A, UGC 10356, MCG 7-34-4, KUG 1620+390A, IRAS 16201+3902, CGCG 224-4
NGC 6131 A	16 21 52.3	+38 56 12	SBc	13.8	13.3	1.00 × 1.0	vF, pL, iR, dif	NGC 6131, UGC 10356, MCG 7-34-4, KUG 1620+390A, IRAS 16201+3902, CGCG 224-4
NGC 6131 B	16 22 00.4	+38 54 57	Gx (S0)	15.5	14.5	0.40 × 0.2	vF, pL, iR, dif	MCG 7-34-5, KUG 1620+390B
NGC 6137	16 23 03.1	+37 55 21	Gx (E4)	13.4	12.4	1.90 × 1.2	F, S, iR, bM	NGC 6137A, UGC 10364, MCG 6-36-39, CGCG 196-63
NGC 6137 A	16 23 03.1	+37 55 21	E4	13.4	12.4	1.90 × 1.2	F, S, iR, bM	NGC 6137, UGC 10364, MCG 6-36-39, CGCG 196-63
NGC 6137 B	16 22 59.6	+37 56 57	Gx (S0-a)	15.6	14.7	0.50 × 0.5	F, S, iR, bM	MCG 6-36-38, CGCG 196-52
NGC 6142	16 23 21.0	+37 15 30	Gx (Sb)	14.6	13.8	2.00 × 0.5	eF, S, bM	UGC 10366, MCG 6-36-41, CGCG 196-56, KUG 1621+373
IC 1138	15 48 15.8	+26 12 22	Gx (S0-a)	15.4	14.5	0.90 × 0.2	vF, S, iF, lbM, r	UGC 10038, CGCG 136-82
IC 1166 1	16 02 08.9	+26 19 30	Gx (S)	15.5	14.7	0.40 × 0.2	vF, vS, vF * nf	MK 867, CGCG 137-18, KUG 1600+264, IRAS 16000+2628
IC 1166 2	16 02 09.0	+26 19 45	Gx (S)	15.5	14.7	0.60 × 0.6	vF, vS, vF * nf	MK 867, CGCG 137-18
IC 1208	16 15 47.8	+36 31 39	Gx (S0-a)	15.3	14.4	1.00 × 0.2	vF, * 7 105" n	CGCG 196-16, near SAO 65183
IC 4539	15 18 31.0	+32 23 34	Gx (SB?)	16.1	15.3	0.40 × 0.4	F, S, R, vlbM	MCG 6-34-3
IC 4546	15 26 58.4	+28 51 07	Gx (SBc)	15.2	14.5	0.70 × 0.5	F, vS, R, * 13 att	MCG 5-36-31, CGCG 165-57
IC 4547	15 27 15.0	+28 47 22	Gx (E-S0)	15.3	14.3	0.70 × 0.6	F, S, R, N, r	CGCG 165-58, NPM1G +28.0341
IC 4548	15 27 23.9	+28 51 01	Gx (E0)	16.6	15.6	0.30 × 0.3	vF, S, iF, r	NPM1G +29.0345
IC 4568	15 40 07.6	+28 09 07	Gx (Sb)	15.3	14.5	0.60 × 0.3	F, S, R, N	CGCG 166-28
IC 4569	15 40 48.3	+28 17 33	Gx (S)	14.8	14.0	0.90 × 0.6	pB, D * 13 in S neb	MCG 5-37-13, CGCG 166-32, NPM1G +28.0350
IC 4570	15 41 22.5	+28 13 45	Gx (Sc)	14.8	14.1	0.90 × 0.8	F, cS, R	UGC 9975, MCG 5-37-14, CGCG 166-35, IRAS 15393+2823
IC 4572	15 41 54.2	+28 08 01	Gx (SBa)	14.6	13.7	1.00 × 0.7	pB, cS, gbM, dif, r	MCG 5-37-16, CGCG 166-37
IC 4574	15 41 59.2	+28 14 24	Gx (Sa)	15.7	14.8	0.30 × 0.1	pF, S, R	CGCG 166-38
IC 4580	15 43 14.3	+28 21 23	Gx (SB0-a)	15.4	14.5	0.60 × 0.2	F, S, R	CGCG 166-41
IC 4581	15 44 01.4	+28 16 36	Gx (SBc)	15.1	14.4	0.90 × 0.8	F, S, iF, * 12.5 nr	MCG 5-37-19, CGCG 166-46
IC 4582	15 45 39.4	+28 05 19	Gx (SBbc)	14.8	14.0	1.30 × 0.3	F, S, E pf, gbM, * 12.5 f 6s.5	UGC 10021, MCG 5-37-20, CGCG 166-52, IRAS 15435+2814
IC 4587	15 59 51.5	+25 56 28	Gx (E0)	15.3	14.3	0.40 × 0.4	eF, eS, T Coronae sp	CGCG 137-12, NPM1G +26.0412
IC 4590	16 08 21.1	+28 28 43	Gx (E+C?)	15.7	14.7	0.30 × 0.3	F, S, gbM, dif	MCG 5-38-18, CGCG 167-29, double system ?

References

7	«Der grosse Kosmos-Himmelsführer» von Ian Ridpath und Wil Tirion; Kosmos Verlag; ISBN 3-440-05787-9
9	«Drehbare Sternkarte SIRIUS» von H. Suter-Haug; Hallwag-Verlag, Bern
15	«Hartung's Astronomical Objects for Southern Telescopes» by David Malin and David J. Frew; Melbourne University Press 1995; ISBN 0-522-84553-3
20	«Sternbilder und ihre Mythen» von Gerhard Fasching; Zweite, verbesserte Auflage; Springer Verlag Wien, New York; ISBN 3-211-82552-5 (Wien); ISBN 0-387-82552-5 (New York)
150	IAU: The Constellations, 11. Oktober 2020; iau.org/public/themes/constellations
154	Yale Bright Star Catalog, 15. Oktober 2020; tdc-www.harvard.edu/catalogs/bsc5.html
277	«Historische Deep-Sky Kataloge» von Dr. Wolfgang Steinicke; klima-luft.de/steinicke (2021-02-17)