Eagle Creek Observatory
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Double Stars in Orion
Here is a listing of the 86 or so best doubles in Orion.
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
STF 589 112034 4.3 288 8.0 8.0 04:44.9 +05:17 G5    
A 2037 112074 2.9 79 7.5 12.5 04:47.1 +10:02 A2    
STF 609   2.4 72 8.5 8.5 04:51.8 +01:14 F8    
STF 612 112195 16.7 198 7.5 8.0 04:54.3 +07:22 K0    
STF 622 112275 2.4 167 8.0 8.0 04:58.1 +01:40 F5    
STF 620 94234 3.9 236 8.5 9.5 04:58.3 +13:57 G0    
SH 49 94240 39.4 305 5.0 6.5 04:59.0 +14:32 B9    
STF 627 112304 21.0 260 6.5 7.0 05:00.4 +03:37 A0    
A2630 112341 14.4 50 7.0 8.0 05:02.0 +01:36 B8    
ADS 3650 131729 52.2 322 7.0 8.0 05:03.7 -02:31 K0 *** Red/White
STF 643 112442 2.8 300 8.5 8.5 05:07.9 +08:23 K2    
STT 100   3.9 252 7.0 10.0 05:10.0 +08:10 F8    
STF 652 112509 1.7 182 6.5 7.5 05:11.8 +01:02 F5    
A 51   1.6 101 8.5 9.0 05:12.5 -03:02 B9    
RHO ORI 112528 7.0 63 4.5 8.5 05:13.3 +02:51 A2 *** Binary
RIGEL (BETA) 131907 9.4 202 0.0 7.0 05:14.5 -08:11 B8    
STF 667 131910 4.0 312 7.5 9.0 05:14.7 -07:03 K2 ***  
HU 1224   1.0 123 8.0 9.0 05:14.8 +12:31 A0    
STF 664   5.0 172 7.5 8.0 05:15.1 +08:26 F0    
TAU ORI 131952 36.2 60 4.0 11.0 05:17.6 -06:50 B5    
STF 678 112602 3.6 102 8.5 9.0 05:17.7 +04:41 F0    
STF 688 150333 10.3 273 7.0 7.5 05:19.4 -10:44 F0    
STF 692 132007 35.1 4 8.0 8.5 05:20.4 -08:02 F2   Primary is a close double, sep 0.5 mags 8/9
BU 189   4.2 284 7.0 11.5 05:20.5 -05:22 B9    
STF 693   3.9 9 8.5 9.0 05:21.6 -02:03 A2    
STT 106 112681 9.3 42 7.0 10.5 05:22.2 +05:23 F5    
A 2641 112692 1.0 328 8.5 11.0 05:22.6 +02:36 G5   True Binary
23 ORI 112697 32.0 28 5.0 7.0 05:22.8 +03:32 B1/A    
STF 700   4.7 5 8.0 8.0 05:23.1 +01:03 A0    
STF 701   6.0 141 6.5 8.5 05:23.3 -08:25 B8    
STF 697 94511 26.0 285 7.0 8.0 05:23.5 +16:02 B8    
A 847   2.7 160 6.5 7.5 05:23.8 -00:52 AB    
ETA ORI 132071 1.5 77 4.0 5.0 05:24.5 -02:23 B0    
STF 708 112744 3.0 325 8.5 10.0 05:25.2 +01:55 B9    
STF 712   3.2 62 7.0 9.0 05:26.5 +02:56 B9    
PSI ORI 112775 2.7 324 5.0 11.0 05:26.8 +03:05 B2    
HJ 2268   27.1 300 7.0 9.5 05:28.7 -08:22 G5    
ADS 4080   5.7 49 8.5 9.0 05:29.1 -02:00 F5   Third component at 102 pa 111 mag8.5, third is a binary sep 16.9 pa 355 mag 10
STF 721 112826 24.7 149 7.0 9.0 05:29.5 +03:09 B3    
31 ORI 132176 12.7 87 6.0 11.0 05:29.7 -01:05 K4    
32 ORI 112849 0.7 54 5.0 6.5 05:30.8 +05:57 B5    
STF 726 94602 1.4 262 8.0 8.5 05:30.9 +10:15 B9    
33 ORI 112861 2.0 26 6.0 7.5 05:31.2 +03:17 B1    
STF 731 132208 4.8 326 8.5 9.0 05:31.3 -02:05 A0    
DELTA ORI (MINTAKA) 132220 52.8 360 2.0 6.5 05:32.0 -00:17 B2   Eclipsing binary
BU 1048 132234 2.0 357 6.0 10.5 05:32.7 -01:35 B2    
STF 734 132247 1.5 355 7.0 8.5 05:33.1 -01:42 B3   Third component at 27.7 pa 243 mag 8.3, b is also a very close binary sep 0.5 mag 8.5
SAO 132269 132269 27.5 269 7.0 10.5 05:34.0 -01:02 B3    
STF 743 132285 2.0 278 7.0 8.0 05:34.7 -04:23 B8    
STF 747 132298 36.0 223 5.5 6.5 05:35.0 -06:00 B1/B0    
LAMBDA ORI 112921 4.4 44 4.0 6.0 05:35.2 +09:55 O8   Third component at 29.1 pa 184 mag 11 fourth component at 78.3 pa 271 mag 11.5
STT 111 94671 2.6 349 6.0 10.0 05:35.3 +10:14 B8    
41-THETA1 ORI 132314 13.3 61 5.0 6.0 05:35.3 -05:23 O   Trapezium mags 5, 6, 7 and 8.
42 ORI 132320 1.6 212 5.5 8.5 05:35.4 -04:50 B2    
43-THETA2 ORI 132321 52.5 92 5.0 6.5 05:35.4 -05:25 O9   Part of the Orion Nebula group
IOTA ORI 132323 11.4 141 3.0 7.0 05:35.4 -05:54 B9   in NGC 1980
STF 750   4.3 60 6.0 8.0 05:35.5 -04:22 B2    
STF 751   15.6 123 8.0 9.0 05:35.7 -00:59 B9    
STF 754   5.3 287 6.5 9.5 05:36.6 -06:04 B3    
STF 757   1.6 237 8.0 8.0 05:38.2 -00:11 B9   third component is at 51.8 pa 86 mat 8.5 is also a close double sep 11.2 mat 8.5/9.0 STF 758
STF 761 132401 68.3 202 8.0 8.5 05:38.6 -02:34 B5 *** part of sigma ori group
SIGMA ORI 132406 12.9 84 4.0 7.5 05:38.7 -02:36 B3   primar is a close binary. other components at 11.2 pa 236 mag 10 - 42.0 pa 61 mag 6.5
STF 763 94729 5.6 318 8.0 8.5 05:39.3 +10:15 F8    
STT 113   10.2 28 7.0 10.5 05:39.9 +13:01 A0    
STF 766   10.0 275 7.0 8.0 05:40.3 +15:21 F0    
50-ZETA ORI/
ALNITAK
  2.6 164 2.0 5.5 05:40.7 -01:56 O9    
BU 1052 132465 0.7 172 7.0 8.0 05:41.7 -02:53 F0    
STF 788   7.4 90 7.5 9.0 05:44.7 +03:50 B9    
STF 790   7.0 88 7.0 9.0 05:46.1 -04:15 K1 ***  
STT 119 113149 0.8 334 7.5 8.5 05:47.9 +07:57 F8    
52 ORI 113150 1.2 211 6.0 6.0 05:48.0 +06:26 A5/F0    
J 36 113155 1.7 109 7.0 9.5 05:48.2 +03:53 F8    
STF 798   20.7 181 7.0 9.0 05:48.2 -08:23 B9    
STF 797   7.2 15 7.0 10.0 05:48.5 +04:41 A0    
STF 809 132585 1.1 105 8.0 10.0 05:50.6 -01:26 G5 *** third component sep 24.6 pa 97 mag 8.5
STT 123 94975 2.1 183 7.0 8.5 05:54.2 +10:14 G5    
STF 813   3.0 150 8.0 8.0 05:54.3 +18:53 A0    
STF 816   4.4 289 6.0 8.5 05:54.9 +05:51 B9    
STF 817 113266 18.4 73 8.0 8.0 05:54.9 +07:02 A5    
S 503 95002/
95000
26.9 326 7.0 9.0 05:56.0 +13:56 AB ***  
BU 1189 113297 57.6 194 8.0 8.5 05:57.5 +00:24 A   primary is a close binary sep 0.2
59 ORI 113315 36.5 204 6.0 9.5 05:58.4 +01:50 A5    
STF 826 132709 2.0 127 8.0 9.0 05:58.9 -01:19 B9    
STT 125   1.6 360 7.0 8.5 06:02.4 +09:38 A0    
STF 835 95202 2.2 147 8.0 9.0 06:04.9 +18:18 A3    
STF 838 113435 40.0 327 7.0 9.0 06:05.2 +00:51 K0 ***  

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.