Constellation Gemini (Twins)

Gemini
Gemini: IAU Constellation Map [150]

Properties

The constellation Gemini is located northeast of Orion and has roughly the shape of a long rectangle towards Orion. The two brightest stars Castor (α Geminorum) and Pollux (β Geminorum) are very noticeable. Pollux is the southerly and lighter of the two. The twin stars Castor and Pollux together with Capella (α Aurigae), Aldebaran (α Tauri), Rigel (β Orionis), Sirius (α Canis Majoris) and Procyon (α Canis Minoris) form the winter hexagon. The constellation area is 514 square degrees and the center culminates around midnight on January 4th. [9, 15]

Stars with Proper Names:

  • α Gem: Castor, Apollo
  • β Gem: Pollux, Hercules
  • γ Gem: Alhena
  • δ Gem: Wasat, Wesat
  • ε Gem: Mebsuta, Melucta, Meboula
  • ζ Gem: Mekbuda
  • η Gem: Propus, Praepes, Tejat Prior
  • ι Gem: Propus
  • μ Gem: Tejat Posterior, Calx, Pish Pai
  • ξ Gem: Alzirr
  • 1 Gem: Propus
Data for constellation Gemini [150]
IAU NameGemini
IAU GenitiveGeminorum
IAU Abbr.Gem
English NameTwins
Season (47° N)October … April
Right Ascension06h 00m 30s … 08h 07m 58s
Declination+09° 48' 35" … +35° 23' 26"
Area514 deg2
Neighbours (N↻)Aur, Tau, Ori, Mon, CMi, Cnc, Lyn

Deep-Sky Object Descriptions

Mythology and History

Castor and Pollux were known as twins in many cultures. Sometimes they were also called The Dioscuri or the sons of Zeus, the king of the gods. Her mother was the beautiful Leda, who appeared to Zeus in the form of a swan. Pollux had an immortal soul; at his death he was granted a home on Mount Olympus. Castor, however, was mortal.

Constellation Gemini
Constellation Gemini: Illustration from «Uranometria» by Johann Bayer, copper engraving by Alexander Mair, 1603 [28]

Some said Castor's father was not the mighty Zeus but the earthly king Tyndareus of Sparta. Thus, like the rest of humanity, Castor was destined to be the ultimate resting place of the underworld of Hades. This world of death was not a place of punishment as in the Christian imagination, but a place of incessant indifference and boredom.

Castor excelled in horsemanship, while Pollux excelled in boxing and fighting battles. It was said that the two were as alike as only twins could be. Both married the pretty daughters of a king of Sparta.

A sad day came when a lance pierced Castor's heart during a riot. Pollux understood that his twin brother would now stay in Hades forever. He asked Zeus to send him to the underworld with him. Zeus was not able to grant this request. However, he promised Pollux that he and his brother Castor would spend half of their time on Mount Olympus and the other half in Hades. The two were then given a place under the stars of the firmament.

The Blackfoot Indians used the same star figure to tell of two infants whose mother was killed by a wandering medicine man: The medicine man placed one infant next to the ashes of the fire in the tipi and named it Chief of the Ashes. He put the other behind a buffalo hide and called him the one behind it. The two got magical powers as they grew up to be men. When they died, they went to heaven as twins.

The Chinese associated Castor and Pollux with the two mystical elements of the universe. These stars, it was said, represent yin and yang - the embodiment of opposites in the world: day and night, light and darkness, good and bad. Yin is said to be female while Yang is male. Yin represents the shadow and Yang represents the light. Yin is winter, Yang is summer, and so on. In this philosophy, one element has no meaning without the other. [86]

Catalogs

Yale Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991) [154]
HR B F DM HD SAO FK5 IR M* ADS VarID RA Dec vMag spType dMag Sep ["] Remarks
HR 2111BD+27 94540589778374589 06 01 00.4+27 34 206.05 B9Iab 6.09.5D:Optical.,G:Gem OB1.
HR 2116BD+22 11404072477858D 06 01 41.6+22 24 036.37 B8V D:Suspected occultation double.,N:141 Tau in Gemini.
HR 21341BD+23 117041116779151163IW Var?06 04 07.2+23 15 484.16 G7III 0.40.2D:AB 4.7 G6III, 5.1 G8III, 13.17y, a = 0.19". Combined mag., colors. Component A is SB, 4.9, 6.9v, sep. 0.0013".,D:Speckle interferometric sep. 0.128" 1982.17, 0.086" 1983.93. Component C, 13.0v at 101".,N:Propus, a name more commonly applied to HR 2216.,SB:Comp. B of double; 9.5966d, K 51.7k/s, V0 +31.7k/s, asini 6.82.
HR 2169BD+22 11984204978045I 06 09 32.4+22 11 245.93 K4I
HR 21733BD+23 122642087780504751 2846 06 09 44.0+23 06 485.75 B2.5Ib e2.50.7D:AB binary, combined mag., colors. C 14.4v at 18".,G:Gem OB1.,VAR:ADS 4751B, 7.0 - 10.0v.
HR 21855BD+24 11514239878079 06 11 32.3+24 25 135.80 K0III G:In NGC 2168.
HR 2190BD+21 11464247578092I TV Gem06 11 51.4+21 52 076.56 M0-1Iab D:IUE observations of uv continuum suggest an early-type companion, B9 or A1III-IV.,G:Gem OB1.,S:Also classified K5.5-M1.3Iab.,VAR:SRc 8.7 - 9.5p, 182d.
HR 21976BD+22 12204254378098I BU Gem06 12 19.1+22 54 306.39 M1-2Ia-Iab G:Gem OB1.,SB:About 600d.,VAR:Lc? 5.74 - 8.1V, possibly E, per. 32y.
HR 2216η7BD+22 12414299578135I4841 Eta Gem06 14 52.6+22 30 243.28 M3III 2.00.0D:AB, 473.7y, a = 1.08". B is 8.8v at 1.4". A is suspected occultation double, 3.4, 5.4v, sep. 0.03". Masses A, 12.4;,D:B, 5.5 solar. The three components are surrounded by a gaseous envelope.,DYN:0.007".,N:Propus; Praepes; Tejat Prior.,SB:ADS 4841A 2983d, K 8.8k/s, V0 +17.6k/s, asini 306. Unresolved by speckle interferometry 1982.17 and 1983.93.,VAR:ADS 4841A, SRa + EA 3.15 - 3.9v, 232.9d. Deepest min. satisfy SB period 2984d.
HR 22308BD+24 11824326178168D 06 16 19.0+23 58 126.08 G8III 0.00.1D:Suspected occultation double, 6.9, 6.9, sep. 0.1".,G:UMa stream.
HR 22409BD+23 12754338478176 06 16 58.7+23 44 276.25 B3Ib G:In cluster CR 89; Gem OB1; in nebulosity.
HR 2277BD+17 12144423495572 06 21 25.9+17 45 496.35 R g:G9
HR 2286μ13BD+22 13044447878297241I4990 Mu Gem06 22 57.6+22 30 492.88 M3IIIab e8.1121.7G:Zeta Her group.,N:Tejat Posterior; Calx; Pish Pai.,R:Occultation diam. = 0.0118 - 0.0160".,S:Ultraviolet FeII emission.,VAR:Lb 2.76 - 3.02V.
HR 2304BD+23 13474492778349D 06 25 32.9+23 19 376.06 R A2Vn 0.40.1D:Speckle interferometric double, 6.5, 6.9v, sep. 0.055".
HR 233016BD+20 14284539478402 06 27 56.6+20 29 466.22 A2V s
HR 2339BD+27 11224550478417D 06 28 56.6+26 58 046.47 R F5 0.90.0D:Sep. 0.003".
HR 2340BD+16 115945506957192494 06 28 28.0+16 14 186.23 G5
HR 2343ν18BD+20 1441455427842311735103 06 28 57.8+20 12 444.15 B6IIIe 1.70.2D:AA' probably combined light and color. This may be the SB pair, 4.3, 6.0v, sep. 0.2". B, 8.5V A1V at 113",,D:vsini 141k/s, is binary with C, 8.9v, sep. 0.2". Component P, 15.1V at 24" optical. Other components faint at 54",D:to 92".,G:Hyades group.,S:Shell star.,SB:ADS 5103A, 9.6y. Resolved by speckle interferometry 1983.93, sep. 0.07".
HR 2366BD+17 127545951957655146 06 31 10.1+16 56 196.20 K2III 4.08.0D:AB binary. B is K0V. Component C, 11.4v at 45" optical.
HR 237119BD+16 11784603195778 06 31 37.4+15 54 126.40 R A8V
HR 2391BD+14 13394637495830 06 33 36.1+14 09 195.53 gK2
HR 2417BD+24 13284702078557 06 37 27.2+24 35 276.44 R A3V
HR 2421γ24BD+16 12234710595912251IW 06 37 42.7+16 23 571.93 A0IV 9.0143.5C:Color excess E(B-V) = +0.03.,D:A* 1.93 A0IV, 12.9y, a = 0.038".,N:ALHENA.,R:Diam. = 0.00132 - 0.00139".,SB:12.4y. Unresolved by speckle interferometry. RV also var. 0.13d.
HR 2436BD+22 141647358785862513 06 39 05.3+22 01 516.04 G9III
HR 2439BD+24 13434741578596 06 39 31.4+24 36 006.38 F8IV
HR 2449BD+13 135647575959635302 06 39 47.6+12 58 595.97 A2V 6.02.9
HR 245325BD+28 12074773178636W 06 41 21.0+28 11 476.42 G5Ib 3.955.9
HR 2457BD+16 12424786395996 06 41 21.8+16 23 516.28 A1V
HR 246626BD+17 13574809796015 06 42 24.3+17 38 435.21 A2V
HR 2473ε27BD+25 14064832978682254I5381 3183 06 43 55.9+25 07 522.98 G8Ib e6.0110.3D:Companion 9.22V, +1.13(B-V), +0.91(U-B), K0III-IV.,G:Red star Pleiades group.,N:Mebsuta; Melucta; Meboula.,R:Occultation diam. = 0.0018 - 0.0056".,S:Strong He 10830 emission and absorption.
HR 247830BD+13 13904843396051I5387 06 43 59.3+13 13 404.49 K0IIICN1Ca1 8.427.2D:Optical.
HR 248028BD+29 132748450786922518I 3188 06 44 45.5+28 58 155.44 K4III
HR 2484ξ31BD+13 13964873796074256I 3193 06 45 17.4+12 53 443.36 F5III N:Alzirr.,VAR:Delta Sct?
HR 248932BD+12 12754884396084 3197 06 45 54.2+12 41 376.46 A9III
HR 2499BD+18 134949059961115447 06 47 23.5+18 11 366.20 R A2V 0.20.5D:6.81 A1V, 7.01 A2V, 1057.8y, a = 1.536". Combined mag., colors.,DYN:0.007".
HR 2512BD+32 141449380595212525I IS Gem06 49 41.3+32 36 245.71 K3II VAR:SRc 6.6 - 7.3p, about 47d.
HR 251933BD+16 129849606961612526W OV Gem06 49 49.8+16 12 105.85 B7III 7.327.5D:Component B, 13.31V at 27.5", optical.,S:Helium weak.,VAR:SX Ari, amp. 0.10V.
HR 252535BD+13 14344973896179I 06 50 25.5+13 24 485.65 gK3
HR 252936BD+21 1405499087880525305511 06 51 33.0+21 45 405.27 A2V 8.811.3D:Optical.,G:Hyades group.
HR 2533BD+23 15184996878816I 06 52 00.0+23 36 065.65 K5III R:Occultation diam. = 0.0028 - 0.0043".
HR 2540θ34BD+34 148150019595702615532 06 52 47.3+33 57 403.60 A3III 7.978.7
HR 256438BD+13 146250635962655559 3266 06 54 38.7+13 10 404.65 F0Vp 2.97.0D:AB 4.8 A9Vp, 7.6 G6V, 1943.8y, a = 8.194". Combined mag., colors.,DYN:0.029".,RV:ADS 5559B, 23k/s.,SB:ADS 5559A.
HR 256937BD+25 14965069278866 06 55 18.6+25 22 325.73 G0V
HR 2586BD+33 14335100059631 3289 06 57 00.5+33 40 525.89 G5III
HR 2597BD+12 13615133096314 06 57 25.7+11 54 276.27 F2Ib-II
HR 260139BD+26 14055153078929W 06 58 47.4+26 04 526.10 F7V 6.028.8
HR 260540BD+26 14115168878947D 06 59 27.9+25 54 516.40 B8III 0.00.0D:7.1, 7.1v, sep. 0.040". Resolved by speckle interferometry 1983.93, sep. 0.06"; unresolved 1984.93 and 1985.25.,S:Spectra show Hg, Mn. Helium weak.
HR 261541BD+16 13545200596363I 07 00 15.8+16 04 445.68 K3Ib
HR 2620BD+32 146052100596975680 07 01 17.2+32 24 526.59 A9IV 5.816.1D:AC, mag. diff 6.1v, sep. 32"; AD, mag. diff 6.1v, sep. 60"; AE, mag. diff 6.4v, sep. 50".
HR 2630ω42BD+24 150252497789991182 Ome Gem07 02 24.8+24 12 555.18 G5IIa-Ib S:Barium star.,VAR:Cep?, amp. 0.086V, 0.7282d.
HR 2631BD+17 147952554964072543ID NP Gem07 02 25.5+17 45 205.94 M1 0.00.0D:Sep. 0.020".,VAR:Lb? 5.89 - 6.04V.
HR 2632BD+15 14315255696403 07 02 17.4+15 20 105.74 R gK1
HR 2635BD+16 13635260996409I 07 02 33.5+16 40 275.82 M2III
HR 2643BD+29 14415271179009 07 03 30.4+29 20 145.93 G4V S:Also classified F8V, G2V and G8IV.
HR 2649BD+11 14285296096429I 07 03 38.0+10 57 065.13 K3III
HR 2650ζ43BD+20 16875297379031269I5742 Zet Gem07 04 06.5+20 34 133.79 F7-G3Ib v0.00.1D:Component A is suspected occultation double, 4.5, 4.5v, sep. 0.1". B, 10.5v at 87". C, +20d1686, 7.55V, +0.62(B-V), +0.,D:+0.07(U-B), G1V at 96" has high proper motion, 0.100", optical, vsini =<54k/s. Other components fainter.,N:Mekbuda.,RV:Same period.,VAR:ADS 5742A, CDelta 3.62 - 4.18V, 10.15073d. Period decreasing 3.1s/y.
HR 2651BD+12 14065297696432I 07 03 51.6+12 35 405.98 K5
HR 265944BD+22 15665325779042 07 05 18.4+22 38 146.02 B8Vn
HR 2660BD+34 15245332959773 3373 07 06 11.6+34 28 265.55 G8IV
HR 2665BD+34 15305368659794I 07 07 22.3+34 00 345.91 gK4
HR 2669BD+28 13145374479066 07 07 25.0+28 10 386.48 B9V RV:Recent determination vsini 350k/s.
HR 2671BD+22 15775379179070IW R Gem07 07 21.4+22 42 137.68 S3.9e v4.9172.5R:Occultation diam. = 0.0037 - 0.0049".,S:Technetium found in spectrum. Also classified S2,9e-S8,9e.,VAR:M 6.0 - 14.0v, 369.91d.
HR 2673BD+34 153353899598062549 07 08 13.3+33 49 566.28 K1
HR 268445BD+16 139754131965355812 07 08 22.0+15 55 515.44 G8III 5.410.4D:AB optical.,G:Wolf 630 group.
HR 2692BD+21 15285456379131 07 10 06.7+21 14 496.43 G9V G:Runaway star from CMa OB1.
HR 2697τ46BD+30 14395471959858I5846 3437 07 11 08.4+30 14 434.41 K2-III 6.51.9D:AB CPM.,VAR:4.3 - 4.36V.
HR 270047BD+27 132754801791412553 07 11 23.1+26 51 245.78 A4IV G:Hyades group.
HR 270648BD+24 15585505279162 07 12 26.4+24 07 425.85 F5III-IV
HR 2711BD+27 133755130791705871 3453 07 12 49.0+27 13 296.43 F8V 0.11.1D:AB 7.18 F8V, 7.23 F8V, 116.50y, a = 0.929". Combined mag., colors. C, 12.5v at 16" optical.,DYN:0.032".,VAR:Delta Sct? Difference between components B-A varies.
HR 271751BD+16 141755383966381188IW BQ Gem07 13 22.3+16 09 325.00 M4IIIab 5.2149.2G:Wolf 630 group.,S:Also classified K3V, but this is not consistent with type of light variability.,VAR:SRb 6.63 - 7.01B, about 50d.
HR 2722BD+24 15765557979191W 07 14 26.6+24 42 396.89 A1pSrCr 3.527.5
HR 272552BD+25 16185562179199I5909 3469 07 14 41.9+24 53 065.82 M1III v6.323.9D:Optical.
HR 273853BD+28 13505587079221I 3485 07 15 57.1+27 53 515.71 M1IIIa
HR 2757BD+31 152956386599642563 07 18 04.1+30 57 216.24 A0Vn
HR 2763λ54BD+16 144356537967462775961 3512 07 18 05.6+16 32 253.58 A3V 1.00.0D:ADS 5961A is dubious occultation double, 4.0, 5.0v, sep. 0.045". B, 10.7v at 10" is CPM.,DYN:0.010".,G:UMa stream; Sirius group?,R:Radius relative to Sun = 1.7.,VAR:Delta Sct?
HR 2777δ55BD+22 16455698679294279I5983 07 20 07.4+21 58 563.53 F2IV 2.00.2D:AB 3.55 F0IV, 8.18 K3V, 1200y, a = 6.975". Component A is SB, 3.7, 5.7v, sep. 0.2".,DYN:0.039".,N:Wasat; Wesat.,S:Variously classified A9III, F0IV, F2IV.,SB:ADS 5983A, 2238.6d, K 27.1k/s, V0 +4.1k/s, asini 781. SB character has, however, been questioned by occultation,SB:data. Unresolved by speckle interferometry 1978.96 and 1983.93.
HR 2780BD+15 15415704996783 07 20 06.9+15 08 346.45 A2Vn
HR 279556BD+20 17755742379328I6016 3550 07 21 56.8+20 26 375.10 M0IIIab 7.416.5D:B optical.,R:Occultation diameter 0.0044-0.0059".
HR 280857BD+25 16605772779352D 07 23 28.5+25 03 025.03 G8III D:Suspected occultation double.
HR 281058BD+23 16985774479354 07 23 28.2+22 56 436.02 R A1V
HR 281659BD+27 13745792779366 07 24 33.4+27 38 175.76 g:F0
HR 2817BD+15 15645805096866 OT Gem07 24 27.7+15 31 026.41 B2Ve vRV:Pole on.,VAR:Gamma Cas 6.0 - 6.44V. Probably short period. Hydrogen emission also var. However, light variability questioned.
HR 2821ι60BD+28 13855820779374282I 07 25 43.6+27 47 533.79 G9IIIbHdel -1 N:Propus, a name more commonly applied to HR 2216.
HR 2835BD+21 15965855179386 07 26 50.2+21 32 096.54 F6V
HR 283761BD+20 18055857979391D 3592 07 26 56.3+20 15 265.93 F2Vn D:Suspected occultation double.,VAR:Delta Sct?
HR 284663BD+21 160258728794036089 07 27 44.4+21 26 425.22 F5V+F5V 0.50.0D:A is occultation triple, 5.9, 6.4v sep. 0.001" and 7.5v at 0.047". Visual companions B, 9.5v at 43" CPM; C, 10.5v at,D:146".,SB:ADS 6089A, F3, F5, 1.9327d, K 96.2k/s, V0 +22.5k/s, msin3i 1.05, asini 2.56.
HR 2852ρ62BD+32 156258946601182866109 07 29 06.7+31 47 044.18 F0V 3.4220.4D:B, 12.5v at 3" CPM.
HR 285764BD+28 13965903779427 07 29 20.4+28 07 055.05 A4V G:Hyades group.
HR 2858BD+15 15795905996930 07 28 47.3+15 06 346.22 B9IV
HR 286165BD+28 14005914879434I6119 07 29 48.7+27 54 585.01 K2III 8.512.8SB:Both components vsini <17k/s.
HR 2877BD+17 159659686969852585I 07 31 48.4+17 05 105.42 gK2
HR 2879BD+23 174459878794896160 07 32 50.6+22 53 166.54 K0II-III+F8V 2.211.5D:CPM. Companion F8V.
HR 288668BD+16 15106010797016D 3642 07 33 36.5+15 49 365.25 A1Vn 1.60.2D:Suspected occultation double, 5.4, 7.0v, sep. 0.15". Resolved by speckle interferometry 1983.94, sep. 0.18".
HR 2890α66BD+32 15816017860198287I6175 B07 34 36.0+31 53 192.88 A2Vm 0.92.0D:Binary with HR 2891. Combined colors.,DYN:0.052".,S:K-line indicates A1, metallic lines A5.,SB:ADS 6175B, 2.9283d, K 31.9k/s, V0 -1.2k/s, asini 1.28.
HR 2891α66BD+32 1581601790I6175 AYY Gem07 34 36.0+31 53 181.98 A1V 0.92.0D:AB 1.98 A1V, 2.88 A5Vm, 511.30y, a = 7.369 or 420.07y, a = 6.295". C, 8.8v M1Ve at 73" is physical member of sextuple,D:system in which A,B,C are all SB.,DYN:0.052".,N:CASTOR; Apollo.,SB:ADS 6175A, 9.2128d, K 12.9k/s, V0 +5.2k/s, asini 1.42. ADS 6175C, 0.8143d, K 120k/s, V0 +0.9k/s, asini 1.34.,SB:Two spectra.,VAR:ADS 6175C at 73" from A, EA 8.91 - 9.60V, 0.81428254d = also SB period. Masses each component 0.64 solar. Both,VAR:components flare stars, M1Ve + M1Ve.
HR 2896BD+31 162060318602046185 07 35 08.7+30 57 405.33 K0III 0.40.4D:AB binary. Resolved by speckle interferometry 1983.94, sep. 0.24".
HR 2905υ69BD+27 142460522795331196IW 3652 07 35 55.3+26 53 454.06 M0III-IIIb e9.046.1G:Wolf 630 group.,S:Ultraviolet FeII emission.
HR 292470BD+35 166260986602436229 07 38 32.8+35 02 555.56 K0III 4.6159.9
HR 2926BD+24 17276103579562 07 38 14.5+24 21 376.27 R F0
HR 2930ο71BD+34 164961110602472592 07 39 09.9+34 35 034.90 F3III
HR 2931BD+24 17306121979580 07 39 11.9+24 13 216.17 A2V
HR 2936BD+32 15996129560254 07 39 54.1+32 00 356.17 F6II
HR 293874BD+18 17016133897120ID 3671 07 39 28.6+17 40 295.05 K5IIIFe-0.5 0.00.0D:Occultation binary, sep. 0.03".,R:Occultation diam. = 0.00278".
HR 2951BD+23 178061603796072595I 07 40 58.5+23 01 075.89 K5 G:Probable Hyades group.
HR 2953BD+14 17216163097136 07 40 47.3+13 46 156.24 K0
HR 2962BD+34 16576185960291 07 42 43.5+34 00 016.02 R F7V SB:31.50d, K 45.2k/s, V0 -12.1k/s, msin3i 1.53, asini 19.1.
HR 2965BD+13 17376188597154I 07 41 51.8+13 28 505.77 M2IIIab
HR 2967BD+14 172961913971572597I NZ Gem07 42 03.2+14 12 305.56 M3II-III G:UMa stream.,VAR:SR 5.52 - 5.72V.
HR 2973σ75BD+29 15906204479638IW Sig Gem07 43 18.7+28 53 014.28 K1III e6.5182.2G:Eta Cep group.,S:H alpha emission.,SB:19.605d, K 34.2k/s, V0 +45.8k/s, asini 9.22. Possible radio binary.,VAR:RS 4.13 - 4.29V, 19.423d.
HR 2978BD+22 17566214179641W A07 43 22.2+22 23 586.21 K0III
HR 298376BD+26 16336228579650I 3703 07 44 06.9+25 47 035.31 K4-5III
HR 2985κ77BD+24 17596234579653294I6321 07 44 26.8+24 23 533.57 G8IIIa 5.87.1DYN:0.018".
HR 2990β78BD+28 14636250979666295I6335 3712 07 45 18.9+28 01 341.14 K0IIIb e10.2201.1D:All the visual companions optical.,N:POLLUX; Hercules.,S:Emission line discovered by COPERNICUS at 1218.4 may be OV probably formed in a corona. Balloon-borne spectrometer,S:revealed pronounced emission of MgII.,VAR:NSV 3712 is component A, 1.10 - 1.17V, while component E is NSV 3716, 10.5v.
HR 299179BD+20 18936251079665 07 45 09.3+20 18 596.33 R A1V
HR 300381BD+18 173362721972211200ID 07 46 07.4+18 30 364.88 K4III-IIIb 0.00.1D:D. W. Dunham gives 5.8, 5.8v, sep. 0.1".,G:61 Cyg group.,S:Also classified K5III.
HR 3013π80BD+33 15856289860340296I6364 3729 07 47 30.3+33 24 565.14 M1IIIa 5.221.0D:C optical. Some disagreement as to which of B and C is the brighter.
HR 302182BD+23 181263208797046378 07 48 33.6+23 08 286.18 R G2III+A4V 0.10.3
HR 3030BD+13 17726335297273I 07 49 02.0+13 22 156.04 K0 G:Gamma Leo group.
HR 3040BD+33 16016358960379W 3758 07 51 02.3+33 14 016.03 A2Vm 4.277.8
HR 3053BD+19 18546388997318 07 51 56.7+19 19 315.99 gK1
HR 3067φ83BD+27 149964145797741207 07 53 29.8+26 45 574.97 A3V
HR 308685BD+20 194664648797992614 07 55 39.9+19 53 025.35 A0V s
HR 3149χBD+28 15326621679896305IW 08 03 31.1+27 47 394.94 K1.5III 6.078.6N:6 Cnc in Gem.,SB:Unresolved by speckle interferometry 1983.94.

Revised+Historic NGC/IC, Version 22/9, © Dr. Wolfgang Steinicke [277]
Planetary Nebulae
NameRADecTypebMagvMagDimDreyer DescriptionIdentification, Remarks
NGC 237107 25 33.9+29 29 18PN13.011.21.03B, S, R, bMN, p of D nebNGC 2372, PK 189+19.1, CS=15.5, part of one PN
NGC 239207 29 10.8+20 54 45PN9.99.10.9B, S, R, * 9 M, * 8 nf 100"PK 197+17.1, CS=10.5, Eskimo nebula
Galactic Nebulae
NameRADecTypebMagvMagDimDreyer DescriptionIdentification, Remarks
IC 44306 16 36.0+22 31 00SNR12.050 × 40F, narrow, curvedLBN 844, VMT 9, Sh2-248
IC 44406 22 30.0+22 52 00EN48 × 38Neb, * 9.5 invLBN 845, DG 101
Open Clusters
NameRADecTypebMagvMagDimDreyer DescriptionIdentification, Remarks
NGC 212906 01 06.5+23 19 04III3p6.76Cl, pL, 40 or 50 st 8…15OCL 467
NGC 215806 07 25.6+24 05 46II3r8.65Cl, pS, mC, vRi, irr Δ, st eSOCL 468
NGC 216806 09 00.0+24 21 00III2m5.125Cl, vL, cRi, pC, st 9...16M 35, OCL 466
NGC 226606 43 19.2+26 58 10II2m9.55Cl, pS, eC, Ri, st 11…15OCL 471
NGC 230406 55 11.8+17 59 19II1p10.03Cl, pL, Ri, mC, st vSOCL 484
NGC 233107 06 59.8+27 15 42IV1p8.519Cl, L, vlC, S Cl invOCL 475
NGC 235507 16 59.2+13 45 00II2p9.78Cl, pS, pRi, mC, st 15…16NGC 2356, OCL 496
NGC 239507 27 12.8+13 36 30III1p8.015Cl, pRi, COCL 502
NGC 242007 38 23.8+21 34 27I2r8.36Cl, cL, Ri, C, st 11…18OCL 488
IC 215706 04 49.8+24 03 21III2p8.45Cl, SOCL 465
Galaxies
NameRADecTypebMagvMagDimDreyer DescriptionIdentification, Remarks
NGC 227406 47 17.4+33 34 03E113.112.11.2 × 1.1F, S, bMUGC 3541, MCG 6-15-8, CGCG 175-15, KCPG 118A
NGC 227506 47 17.9+33 35 57Sab14.013.21.3 × 0.9eF, vSUGC 3542, MCG 6-15-7, CGCG 175-16, KCPG 118B
NGC 228806 50 51.9+33 27 45E515.314.40.4 × 0.2cF, S, R, (β of Lord R's diag)MCG 6-15-11, CGCG 175-17
NGC 228906 50 53.5+33 28 44S014.213.11.1 × 0.6eF, vS, (= γ)UGC 3560, MCG 6-15-10, CGCG 175-18, NPM1G +33.0089
NGC 229006 50 56.9+33 26 15Sa14.213.21.2 × 0.7F, S, gbM (= α)UGC 3562, MCG 6-15-12, CGCG 175-19
NGC 229106 50 58.6+33 31 30S014.213.21 × 0.8eF, vS, (= δ)CGCG 175-20, MCG 6-15-13, NPM1G +33.0090
NGC 229406 51 11.3+33 31 38E614.913.80.8 × 0.4eeF, (ε of Lord R's diag)MCG 6-15-14, CGCG 175-21, IRAS 06478+3335
NGC 233307 08 21.2+35 10 12Sa14.213.31 × 0.7vF, S, R, bMUGC 3689, MCG 6-16-20, CGCG 176-18, IRAS 07050+3515
NGC 233907 08 20.3+18 46 46SBbc12.511.82.7 × 2pB, pL, R, glbMUGC 3693, MCG 3-19-2, CGCG 85-40, CGCG 86-5, IRAS 07054+1851
NGC 234107 09 12.0+20 36 12Sc/P13.813.20.8 × 0.8vF, vSUGC 3708, MCG 3-19-3, CGCG 86-6, KCPG 125A, IRAS 07062+2041
NGC 234207 09 18.1+20 38 13Sc13.112.61.4 × 1.3pF, S, lE, vlbMUGC 3709, MCG 3-19-4, CGCG 86-7, KCPG 125B, IRAS 07063+2043
NGC 235707 17 40.9+23 21 23Sc14.013.33.6 × 0.5eF, L, mE, bM, F st invUGC 3782, MCG 4-17-14, CGCG 116-46, FGC 619, IRAS 07146+2326
NGC 236507 22 22.3+22 05 00SBa13.312.42.8 × 1.4vF, pS, R, psbMUGC 3821, MCG 4-18-8, CGCG 117-20
NGC 237007 25 01.5+23 47 01SBc14.413.70.8 × 0.5eF, vS, EUGC 3835, MCG 4-18-15, CGCG 117-36, IRAS 07220+2352
NGC 237307 26 36.9+33 49 27Sbc14.613.80.6 × 0.5eF, vS (ζ in Ld R's diag)UGC 3848, MCG 6-17-4, CGCG 177-14, IRAS 07233+3355, KUG 0723+339, ARAK 131, NPM1G +33.0105
NGC 237507 27 09.4+33 49 57SBb14.413.61.3 × 1eF, vS, h 446 f 17s, 1' s (ε)UGC 3854, MCG 6-17-5, CGCG 177-17, NPM1G +33.0106, IRAS 07238+3356
NGC 237607 26 35.9+23 04 24Sbc15.214.40.6 × 0.6eF, vSMCG 4-18-17, CGCG 117-39, IRAS 07235+2310
NGC 237907 27 26.2+33 48 43S014.513.50.9 × 0.8vF, vS (δ)UGC 3857, MCG 6-17-6, CGCG 177-18, ARAK 132, CGCG 177-18, NPM1G +33.0107
NGC 238507 28 28.2+33 50 17S?14.813.91 × 0.7vF, vS, R, bMMCG 6-17-8, CGCG 177-20
NGC 238807 28 53.5+33 49 08S14.613.81 × 0.6vF, S, R, bMUGC 3870, MCG 6-17-10, CGCG 177-22, IRAS 07256+3355
NGC 238907 29 04.8+33 51 39SBc13.412.92 × 1.4vF, S, R, psbMUGC 3872, MCG 6-17-11, CGCG 177-24, KUG 0725+339
NGC 239307 30 04.9+34 01 40Sc14.714.01.2 × 0.8eF, pS, lE, dif, r?UGC 3884, MCG 6-17-14, CGCG 177-27, KUG 0726+341, IRAS 07267+3407
NGC 2398 107 30 16.2+24 29 17S?14.813.90.4 × 0.3vF, eS, bM, r ?MCG 4-18-23, CGCG 117-48
NGC 2398 207 30 13.6+24 29 29D R15.514.90.5 × 0.5vF, eS, bM, r ?MCG 4-18-22, CGCG 117-46
NGC 2405 107 32 13.9+25 54 22S14.914.10.5 × 0.3vF, S, iRMCG 4-18-26, CGCG 117-51, VV 643
NGC 2405 207 32 15.1+25 54 21E015.514.50.3 × 0.3vF, S, iRMCG 4-18-26, CGCG 117-51, VV 643
NGC 240607 31 47.7+18 17 19E?15.214.20.7 × 0.6eF, eS, vSN ?MCG 3-19-21, CGCG 86-41, CGCG 87-2, NPM1G +18.0161
NGC 240707 31 56.6+18 20 01E-S014.413.41.1 × 1eF, eS, vSN ?UGC 3896, MCG 3-20-1, CGCG 86-42, CGCG 87-3, NPM1G +18.0162
NGC 241007 35 02.2+32 49 21SBb13.813.02.4 × 0.7eF, vS, sev vF st invUGC 3917, MCG 5-18-23, CGCG 147-43, CGCG 177-35, IRAS 07318+3255
NGC 241107 34 36.4+18 16 55E?14.813.80.9 × 0.5* 14 m slightly nebsUGC 3914, MCG 3-20-5, CGCG 87-13
NGC 241807 36 37.4+17 53 02E013.212.21.8 × 1.8vF, eS, bMUGC 3931, MCG 3-20-8, CGCG 87-17, Arp 165
NGC 243507 44 13.4+31 39 02Sa13.712.82.2 × 0.5F, S, lbMUGC 3996, MCG 5-19-2, CGCG 147-62, CGCG 148-4
NGC 244907 47 20.4+26 55 50Sab14.213.41.3 × 0.6eF, eS, R, bM, rUGC 4026, MCG 5-19-7, CGCG 148-20
NGC 245007 47 32.2+27 01 10Sbc15.514.70.9 × 0.2eF, vS, S * invMCG 5-19-8, CGCG 148-22
NGC 245407 50 34.9+16 22 09S14.613.80.8 × 0.3vF, eS, R, bMUGC 4053, MCG 3-20-15, CGCG 87-44, ARAK 143
NGC 248007 57 10.6+23 46 47SBcd14.513.81.3 × 0.7vF, E npsf, close np h 473UGC 4116, MCG 4-19-9, CGCG 118-26, KCPG 148A, IRAS 07541+2354
NGC 248107 57 13.7+23 46 03S0-a13.913.01.4 × 0.5F, S, lE, bM, erUGC 4118, MCG 4-19-10, CGCG 118-27, KCPG 148B
NGC 248607 57 56.5+25 09 40Sa14.213.31.7 × 0.9vF, S, psbMUGC 4123, MCG 4-19-11, CGCG 118-29, KCPG 150A
NGC 248707 58 20.3+25 08 57SBb13.212.52.7 × 2.1vF, S, gbMUGC 4126, MCG 4-19-12, CGCG 118-30, KCPG 150B, IRAS 07553+2517
NGC 249007 59 17.9+27 04 40C15.614.60.6 × 0.4vF, S, R, * 13 1' f, p of 2MCG 5-19-27, CGCG 148-78
NGC 249207 59 29.7+27 01 35E-S013.712.71 × 1vF, S, R, bM, f of 2UGC 4138, MCG 5-19-28, CGCG 148-80
NGC 249807 59 38.7+24 59 00SBa14.313.41.1 × 0.8vF, vS, R, bMNUGC 4142, MCG 4-19-15, CGCG 118-34, IRAS 07566+2507
IC 45406 51 06.2+12 55 21SBab14.213.41.2 × 0.7eeF, S, e difficUGC 3570, MCG 2-18-2, IRAS 06482+1258
IC 47407 46 07.3+26 30 16S?15.214.41 × 0.3pB, vS, difMCG 4-19-1, CGCG 148-12
IC 47507 47 09.2+30 29 20S15.314.50.8 × 0.5vF, vS, difMCG 5-19-5, CGCG 148-17, ARAK 140
IC 47607 47 16.4+26 57 03SB?15.614.80.5 × 0.3vS, vF, lbM, difficMCG 5-19-6, CGCG 148-18
IC 47707 52 06.9+23 29 01S015.414.40.9 × 0.9F, pL, R, difMCG 4-19-6, CGCG 118-16, NPM1G +23.0145
IC 47807 53 41.6+26 29 32S15.214.40.6 × 0.3vF, vS, difCGCG 148-55
IC 47907 54 22.1+27 00 26SBc15.414.70.7 × 0.6pF, vS, RMCG 5-19-20, CGCG 148-58
IC 48007 55 23.1+26 44 32Sbc15.014.21.7 × 0.3vF, pL, E ns, difUGC 4096, CGCG 148-62, IRAS 07523+2652
IC 48107 59 02.8+24 09 37Sbc15.214.41 × 0.2vF, vS, difUGC 4130, MCG 4-19-13, CGCG 118-31
IC 48207 59 47.3+25 21 22S15.314.50.7 × 0.4vF, S, dif, difficMCG 4-19-16, CGCG 118-35, IRAS 07567+2529
IC 48408 00 01.0+26 39 57Sa15.514.60.6 × 0.3F, vS, R, bMCGCG 148-84
IC 48508 00 19.8+26 42 06Sa15.414.51.2 × 0.3vF, vS, R, sbMUGC 4156, CGCG 148-88, IRAS 07572+2650
IC 48608 00 21.1+26 36 48SBa14.613.70.9 × 0.7F, S, dif, gbMUGC 4155, MCG 4-19-18, CGCG 148-87, IRAS 07572+2645
IC 217607 07 31.8+32 28 13S14.914.10.9 × 0.4vF, vS, R, stellMCG 5-17-11, CGCG 146-25, NPM1G +32.0128
IC 217807 07 37.6+32 30 47S15.815.00.4 × 0.2vF, vS, R, bMNCGCG 146-26, NPM1G +32.0129
IC 218007 11 19.5+26 22 15Sab14.413.61.1 × 0.8F, S, iF, difUGC 3727, CGCG 116-27
IC 218107 13 10.3+18 59 47Sab14.413.60.9 × 0.5F, S, R, stellUGC 3744, MCG 3-19-5, CGCG 86-8, NPM1G +19.0136
IC 218207 14 11.0+18 56 42S15.815.00.5 × 0.5vF, vS, dif, * 12 att
IC 218507 23 16.1+32 29 41Sc15.114.40.6 × 0.4F, S, RMCG 5-18-8, CGCG 177-4, CGCG 147-15, IRAS 07200+3235, ARAK 129, KUG 0720+325
IC 218607 22 43.1+21 30 49S14.713.90.9 × 0.6F, S, R, gbM, rIC 2188, MCG 4-18-11, CGCG 117-26, NPM1G +21.0156
IC 218707 22 43.3+21 28 58E-S014.913.90.4 × 0.4F, S, R, dif, * 11.5 v nrMCG 4-18-10, CGCG 117-25
IC 219107 30 17.4+24 19 42S015.114.10.9 × 0.7F, vS, R, stellMCG 4-18-24, CGCG 117-47, NPM1G +24.0129
IC 219207 33 19.8+31 33 12C16.015.00.3 × 0.3F, vS, R, * 14 nearly in cont
IC 219307 33 23.6+31 29 00Sb14.213.41.5 × 0.9Close p * 10m [? = J. 1001]UGC 3902, MCG 5-18-18, CGCG 147-37, IRAS 07301+3135
IC 219407 33 40.2+31 20 04S?14.813.91.1 × 0.3F, S, R, gbM, rMCG 5-18-20, CGCG 147-39
IC 219607 34 09.7+31 24 22E213.712.71.4 × 1.1F, S, pR, gbM, r, 3 st 2' pUGC 3910, MCG 5-18-21, CGCG 147-40, NPM1G +31.0106
IC 2197 107 34 18.9+31 20 14S16.215.40.4 × 0.4vvF
IC 2197 207 34 19.5+31 20 18C17.016.00.2 × 0.2vvF
IC 219807 34 11.1+23 57 59E015.114.10.4 × 0.4F, S, R, gbM, rCGCG 117-54
IC 219907 34 55.6+31 16 33SBc13.913.21.1 × 0.6F, SUGC 3915, MCG 5-18-22, CGCG 147-42, IRAS 07317+3123
IC 220107 36 16.8+33 07 23Sa14.914.01.3 × 0.3F, vS, R, gbM, rUGC 3926, MCG 6-17-20, CGCG 177-36, NPM1G +33.0110
IC 220307 40 33.6+34 13 48SBc14.313.61.2 × 1F, S, R, gbM, rUGC 3958, MCG 6-17-25, CGCG 177-42, KUG 0737+343, IRAS 07373+3420
IC 220407 41 18.1+34 13 53SBab15.815.01.1 × 0.9F, vS, R, eFN, rUGC 3965, MCG 6-17-26, CGCG 177-43, IRAS 07380+3420
IC 220507 46 54.5+26 52 22S14.914.10.5 × 0.3F, vS, neb D *CGCG 148-15, NPM1G +26.0122
IC 220707 49 50.8+33 57 45Sc15.214.52 × 0.3vF, vS, dif, * 15 v nrUGC 4040, MCG 6-17-29, CGCG 177-49, FGC 664, IRAS 07466+3405
IC 220807 52 07.9+27 29 03S015.014.01 × 0.7F, S, R, difMCG 5-19-19, CGCG 148-53
IC 221107 57 45.6+32 33 31Sa14.613.70.8 × 0.4pB, S, R, FN, rUGC 4119, MCG 5-19-23, CGCG 178-10, NPM1G +32.0155, IRAS 07546+3241
IC 221207 58 57.1+32 36 46S15.314.50.5 × 0.5F, pL, vlbM, difMCG 5-19-24, CGCG 178-13, NPM1G +32.0157
IC 221307 59 06.5+27 27 52Sb15.314.50.8 × 0.6F, S, R, lbMNMCG 5-19-25, CGCG 148-76, NPM1G +27.0182

«Strasbourg-ESO Catalogue of Galactic Planetary Nebulae» Acker et al., 1992 [141]
PNGRADecMain IDPKIRASDiscovererIdentitiesoDiam
["]
rDiam
["]
Dist
[kpc]
Rvel
[km/s]
ExpVel
[km/s]
C* NameC* MagC* SP Type
PN G184.8+04.406 13 55+26 52 57K 3-71KOHOUTEK 1969 3.1 +18.0 ± 2.5 12.5 (O-III)
PN G189.1+19.807 25 35+29 29 36NGC 2371-72189+19.107224+2935PEASE 1917ARO 45, VV 37, VV' 61 44. 1.64 +20.6 ± 2.7 42.5 (O-III)AG82 80U: 13.28, B: 14.48, V: 14.85O VI, WC early
PN G189.8+07.706 37 21+24 00 36M 1- 7189+07.106342+2403MINKOWSKI 1946ARO 127, VV 30, VV' 46 8.8 11. +2.4 ± 9.2 12.0 (O-III)AG82 64bisV: 19.64O VI, WC 8
PN G192.5+07.206 40 10+21 24 57HDW 6HARTL et al 1983HaWe 8 76. AG82 65B: 19.
PN G194.2+02.506 25 57+17 47 27J 900194+02.106230+1749JONCKHEERE 1916ARO 92, VV 28, VV'44 9. 6. 2.0 +47.2 ± 0.4 18. (O-III)AG82 63V: 17.8WC ?
PN G197.8+17.307 29 11+20 54 37NGC 2392197+17.107262+2100LASELL 1853ARO 24, VV 38, VV' 63 19.5 0.5 - 1.6 ?+75.0 ± 2.1> 52.5 (O-III), > 53. (N-II)AG +21 821, AG82 81, BD +21 1609, CSI +21 01609, CSV 100874, DC 13050, EM* CDS 689, GCRV 4981, HD 59088, NSV 3604, PLX 1765, SV* ZI 631U: 9.30, B: 10.38, V: 10.53O6 f, Of(H)
PN G200.7+08.406 59 57+14 36 47A 19200+08.1ABELL 1955A55 14, ARO 130, VV' 51 67.
PN G205.1+14.207 29 03+13 14 30A 21205+14.1JOHNSON et al 1971A55 16, A 21, ARO 388, Sh 2-274, YM 29 615. 64. (O-III), 90. (N-II)AG82 82, CSI +13 -07262, UBV 7228U: 14.41, B: 15.67, V: 15.99

«A Catalog of Parameters for Globular Clusters in the Milky Way» William E. Harris, 1996 [148]
IDNameRADecRSun
[kpc]
RGC
[kpc]
Fe/HwtEB-VVHB(m-M)VVtMV,tU-BB-VV-RV-Isptellipvr
[km/s]
vLSR
[km/s]
sigv
[km/s]
crc
[']
rh
[']
μVρ0lg(tc)lg(th)
Ko 207 58 17.0+26 15 1834.741.900.0818.6017.9517.60-0.350.50 0.250.217.70

References

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
28«Uranometria omnium asterismorum continens schemata, nova methodo delineata aereis laminis expressa» Johann Bayer, Augsburg, 1603; DOI:10.3931/e-rara-309
86The Starry Sky: Gemini by Deborah Byrd; Astronomy 1/96, p.64
141Strasbourg-ESO Catalogue of Galactic Planetary Nebulae; A. Acker, F. Ochsenbein, B. Stenholm, R. Tylenda, J. Marcout, C. Schohn; European Southern Observatory; ISBN 3-923524-41-2 (1992); Bibcode:1992secg.book.....A; cdsarc.u-strasbg.fr/viz-bin/cat/V/84
148«A Catalog of Parameters for Globular Clusters in the Milky Way» Harris, William E.; Astronomical Journal v.112, p.1487, October 1996 / Revision: December 2010; DOI:10.1086/118116; Bibcode:1996AJ....112.1487H; physwww.mcmaster.ca/~harris/mwgc.dat (2021-01-03)
150IAU: The Constellations, 11. Oktober 2020; iau.org/public/themes/constellations
154Yale 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)