Eagle Creek Observatory
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Double Stars in Gemini
The Twins
Here is a listing of the 80 or so best doubles in Gemini.
The star name contains a link so you may click there to see more detailed information about this double star.
Some entries may return multiple stars, click on the one of interest and the information will be displayed.
If more than one entry is listed click on each of them to view the data. Use the Aladin Previewer to see a photograph of the star.
Click HERE for an ETX tour.

Name SAO Sep PA Mag1 Mag2 RA Dec Spect Color Comments
HO 21   9.3 240 6.5 12.5 06:01.0 +27:34 B9    
STF 830   12.0 254 8.0 8.5 06:03.4 +27:38 F2    
STT 134   31.0 188 7.0 8.0 06:09.3 +24:25 G0    
STF 889   21.3 237 7.0 9.5 06:19.9 +25:00 K2    
S 513 78263 59.4 258 8.0 9.0 06:21.2 +21:07 B8    
STF 897 78284 18.0 348 8.0 8.5 06:22.4 +26:40 A0    
STF 899 95302 2.0 19 7.0 8.0 06:22.8 +17:34 A0    
MU GEM 78297 122.0 141 3.0 9.5 06:22.9 +22:31 M3 *** Very red primary
BU 1191   2.0 304 7.0 13.5 06:26.1 +18:46 K0    
STT 140 95684 2.8 118 7.0 9.5 06:26.7 +15:31 B9    
15 GEM 78395 27.1 204 7.0 9.0 06:27.8 +20:47 K0 *** orange/yellow pair
STF 141 54884 2.2 142 7.5 9.5 06:30.0 +17:53 A0    
HO 340   7.9 103 7.0 10.0 06:30.4 +17:56 K2    
STT 143   7.9 103 7.0 10.0 06:31.2 +16:56 K2    
STT 519   8.2 78 8.0 10.5 06:31.3 +15:43 G5    
20 GEM 95795 20.0 210 6.0 7.0 06:32.3 +17:46 F8 *** orange/yellow pair
STF 942 78563 3.2 246 9.0 9.0 06:37.6 +23:39 A5    
HO 625   13.4 194 7.0 12.0 06:38.3 +24:27 A5    
BU 571 95963 2.9 232 6.0 12.0 06:39.8 +12:59 A3    
A2728 95998 5.0 232 7.5 13.0 06:41.4 +15:26 A5    
EPS GEM 78682 110.0 94 3.0 9.0 06:43.9 +25:07 G8    
STF 957 59444 3.5 93 7.5 9.0 06:45.2 +30:49 A0    
STT 155   15.5 261 7.0 10.0 06:45.4 +24:40 K2 *** red/white pair
STT 160 78852 1.5 181 7.0 10.0 06:54.4 +21:10 G5    
38 GEM 96265 7.0 151 5.5 7.5 06:54.6 +13:11 F0    
STF 981 59611 2.1 140 8.0 8.0 06:55.0 +11:58 G0    
STT 161   20.1 171 6.5 11.0 06:55.0 +21:34 B9    
STF 991 78898 3.8 167 8.0 9.0 06:57.1 +24:56 A0    
STF 1000 78945 22.3 67 8.5 8.5 06:59.4 +25:13 G *** Very red Carbon Star SAO 78931 in field
STT 162C   21.4 155 9.0 10.0 06:59.9 +15:56 G0    
BU 100 96379 3.3 258 7.0 10.5 07:01.0 +12:23 K0    
STT 163 96385 14.2 158 7.5 12.0 07:01.2 +11:46 A2    
HO 342   1.0 85 8.0 9.0 07:02.8 +13:05 F5    
STF 1014 79046 2.0 36 8.5 8.5 07:05.8 +26:08 K2    
STF 164 54999 13.7 50 6.0 10.0 07:06.2 +24:51 K2 *** Very red primary
STF 1017 96505 12.3 254 8.5 9.0 07:07.2 +16:50 G    
45 GEM 96535 10.4 14 5.0 10.0 07:08.4 +15:56 G8    
STF 1027   6.9 355 8.0 8.0 07:08.8 +16:54 K2 *** White/Red
TAU GEM 59858 1.9 178 5.0 11.5 07:11.2 +30:15 K2    
STF 1035 79151 8.7 41 7.5 7.5 07:12.0 +22:16 F5    
STT 168 79174 24.0 67 6.5 10.5 07:12.8 +21:20 g5    
STF 1037 79170 1.2 329 7.0 7.0 07:12.8 +27:13 F6    
WEI 14 96630 2.2 157 8.0 8.5 07:12.9 +15:10 A0    
STT 167   5.3 158 7.0 10.5 07:13.5 +32:08 A5    
STF 1047 96665 22.4 25 7.5 10.0 07:14.4 +15:45 F2    
52 GEM 79199 23.9 265 6.0 12.5 07:14.7 +24:53 M1 *** Very red Carbon Star as primary
A 2527 96691 1.9 289 8.5 13.5 07:15.3 +19:03 A5    
STF 1053   13.8 310 7.5 10.0 07:16.9 +26:32 A0    
LAMBDA GEM 96746 9.6 33 3.0 10.0 07:18.1 +16:32 A3    
STF 1054   18.6 291 7.5 10.0 07:18.1 +16:32 A0    
STF 1068 96779 4.0 352 8.5 9.0 07:19.8 +13:22 A2    
DELTA GEM 79294 6.3 218 3.5 8.0 07:20.1 +21:59 F0    
STF 1070 59996 1.7 321 8.0 9.0 07:21.4 +34:02 A0    
56 GEM 79328 16.5 202 6.0 13.0 07:22.0 +20:27 M0 *** Very red primary
STF 1083 79376 6.4 44 6.5 7.5 07:25.6 +20:30 A5    
HO 346   12.8 58 7.0 12.0 07:25.9 +18:08 G5    
STF 1087   21.3 40 8.0 11.0 07:26.0 +14:05 A2 *** white/orange pair
STF 1088   11.1 195 7.0 9.0 07:26.0 +14:05 B9    
STF 1089 96893 7.2 8 8.5 8.5 07:26.2 +14:50 A2    
STF 1090 96898 19.9 320 8.0 10.0 07:26.5 +18:30 F0    
STF 1094   2.5 96 7.5 8.5 07:27.4 +15:18 B8    
S 548   11.3 22 7.5 12.0 07:27.7 +22:08 K5 *** Red/White pair
63 GEM 79403 42.9 324 5.5 9.5 07:27.8 +21:26 F5    
RHO GEM 60118 3.4 8 4.5 12.0 07:29.1 +31:46 F0    
STF 1102   7.6 47 7.5 9.0 07:30.4 +13:51 F8    
BU 579 60193 1.0 47 7.0 11.5 07:31.2 +33:07 A2    
STF 1116 97033 1.8 99 7.0 7.5 07:34.6 +12:18 B8    
CASTOR 60198 1.8 140 2.5 3.5 07:34.6 +31:53 G3    
KAPPA GEM 79653 7.0 239 4.0 10.0 07:44.4 +24:23 G8    
A 674 60312 1.0 128 7.5 10.0 07:44.7 +31:06 A5    
BU 580   1.4 135 9.0 12.0 07:45.3 +28:02 K0    
PI GEM 60340 21.0 214 5.0 11.0 07:47.5 +33:24 M0 *** Ver Red Carbon star as primary
AGC 2 79697 0.8 116 8.0 11.0 07:47.9 +28:40 G5    
STF 1140   6.3 273 7.0 8.5 07:48.4 +18:20 G5 *** Orange/White pair
82 GEM 79704 0.2 71 7.0 7.0 07:48.6 +23:08 F2   Very tight primary/secondary but dim 3rd at 4"
STF 1147 79735 2.3 169 9.0 9.0 07:50.3 +24:31 G0    
A 2881 97334 4.2 324 8.0 13.0 07:53.3 +15:43 K0    
STT 183   15.9 20 7.0 11.0 07:53.9 +16:02 A2    
WEI 17   7.0 96 8.0 8.5 07:54.0 +14:57 F0    
HO 250 79818 0.7 158 7.0 9.0 07:57.1 +20:57 G5 *** Very tight primary/seconday but nice 12th mag 3rd at 9.4"

Image created using TheSky 4.0 Level IV
available from Bisque Software


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Some information gathered from Burgham's Celestial Handbooks and converted to J2000, other from my own observations.
Page 2003 Kevin Muenzler, Eagle Creek Observatory.