33 Doubles in Orion Data 

In this table you can see all the relevant data about the 33 doubles. Click on the name of a star in order to read the observations. Also note that in the last column there is a link for an star chart in order to show you the location for every star. If you want to go to the general "Road-Map", only click here.

Click Here to see the 2000-2001 Addendum!
 
 

Name Distance Mv1 Mv2 PA B1950 RA (J2000) Dec (J2000) Map
Struve 589 4.3 8 8 288 (04422n0512) 04h 44m 59.52s 05d 17m 27s
4
Struve 609 2.4 8.5 8.5 72 (04492n0110) 04h 51m 55s 01d 14m 58s
4
S,h 49 39,4 - 54,4 5 6,5-9 305-89 (04562n1428) 04h 59m 10s 14d 32m 29s
7
Rho 7 4.5 8.5 63 (05107n0248) 05h 13m 47s 02d 51m 26s
3,4
Beta (Rigel) 9.4 0 7 202 (05121s0815) 05h 14m 34s -08d 11m 38s
5
Tau 36.2 4 11 60 (05152s0654) 05h 17m 46s -06d 50m 51s
5
23 32 5 7 28 (05202n0330) 05h 22m 57s 03d 32m 47s
3
Struve 701 6 6,5 8.5 141 (05209s0828) 05h 23m 54s -08d 25m 18s
5
Eta 1.5 4 5 77 (05220s0226) 05h 24m 31s -02d 23m 20s
5
Struve 712 3.2 7 9 62 (05239n0254) 05h 27m 07s 02d 56m 29s
3
Psi 2.7 5 11 324 (05242n0303) 05h 26m 57s 03d 05m 30s
3
h2268 27.1 7 9.5 300 (05263s0825) 05h 28m 54s -08d 22m 39s
5
31 12.7 6 11 87 (05272s0108) 05h 29m 53s -01d 05m 43s
5
Delta (Mintaka) 52.8 - 32.8 2 6.5 - 14 360 - 227 (05294s0020) 05h 32m 14s -00d 22m 07s
5
Lambda 4.4 - 29.1 4 6 - 11 44 - 184 (05324n0954) 05h 35m 25s 09d 55m 53s
3
Otto Struve 111 2.6 6 10 349 (05325n1013) 05h 35m 36s 10d 14m 53s
3
Struve 747 36 5.5 6.5 223 (05326s0602) 05h 35m 27s -06d 00m 08s
6
Theta 1 13.3-13.1-16.8 5 6-7-8 61-311-342 (05328s0525) 05h 35m 48s -05d 23m 09s
6
Theta 2 52.5 - 129 5 6.5-8.5 92-97 (05329s0527) 05h 35m 58s -05d 25m 10s
6
42 1.6 5.5 8.5 212 (05329s0452) 05h 35m 58s -04d 50m 10s
6
Struve 750 4.3 6 8 60 (05330s0424) 05h 35m 29s -04d 22m 08s
6
Iota 11.4-49.7 3 7-11 141-103 (05330s0556) 05h 35m 27s -05d 54m 08s
6
Struve 757 1.6-51.8 8 8-8.5 237-86 (05356s0013) 05h 38m 06s -00d 11m 05s
5
Struve 761 68.3 8 8.5 202 (05361s0236) 05h 38m 41s -02d 34m 22s
5
Sigma 12.9-11.2-42 4 7.5-10-6.5 84-236-61 (05362s0238) 05h 38m 51s -02d 36m 22s
5
Zeta (Alnitak) 2.6-57.6 2 5.5-10 164-10 (05382s0158) 05h 40m 52s -01d 56m 31s
5
52 1.2 6 6 211 (05453n0626) 05h 48m 11s 06d 26m 58s
2,3
59 36.5 6 9.5 204 (05558n0150) 05h 58m 56s 01d 50m 10s
2
Struve 848 2.6-14.2-28.4-43.3 7.5 8-12-8-9 110-296-121-183 (06057n1359) 06h 09m 01s 13d 58m 27s
1
Struve 853 33.2 8 8.5 1 (06064n1140) 06h 09m 28s 11d 39m 25s
1
Struve 855 29.4 6 7 114 (06064n0231) 06h 09m 17s 02d 30m 25s
2
Struve 880 5.5 8 8 54 (06127n1036) 06h 15m 56s 10d 34m 57s
1
75 62.7-117 6 10-8.5 258-159 (06144n0958) 06h 17m 26s 09d 56m 50s
1

Addendum 2000-2001 

For the 2000-2001 winter, here are some more objects. The first 5 double stars are maybe the more difficult ones from our last year experience, and for example Otto Struve 111 almost will drive you crazy. The Trapezium is also included, but you must observe at least 5 components there (better 6, of course), so plan to go to a really dark site to get the split.
This addendum to Orion will remain open to observe from 16th December, 2000 to 28th February, 2001
 
 
 
Name Distance Mv1 Mv2 PA D.I RA (J2000) Dec (J2000) Comments
Eta 1.5 4 5 77 86.34 05h 24m 31s -02d 23m 20s
Easy to locate, but not easy at all
Otto Struve 111 2.6 6 10 349 100 05h 35m 36s 10d 14m 53s
The "Hardest"
Theta 1 13.3-13.1-16.8 5 6-7-8 61-311-342 n/a 05h 35m 48s -05d 23m 09s
Observe at least 5 components
42 1.6 5.5 8.5 212 97 05h 35m 58s -04d 50m 10s
Wait for seeing >= 8
52 1.2 6 6 211 72 05h 48m 11s
06d 26m 58s
Not easy, but not very dificult
HIP 28708
2.3"
8.12
9.3
148
n/a
06h 03m 48s 18d 15m 53s
Discovered by Hipparcos mission
"Newmoon observing" almost
mandatory
Struve 751
15.6"
8.5
9.3
124
n/a
05h 35m 48s
-00d 59m 13s
Splittable with poweful Binos
Epsilon (Alnilam)
179.9"
1.7 10.5
57
n/a
   
To complete "The Belt"! 
14
1"
6
6.5
72
89
05h 07m 53s
+08d 29m 54s
Look for "elongations" here
Struve 667
4.1"
7.1
8.6
312
60
05h 14m 41s
-07d 04m 17s
Less than 1.5º N from Rigel
Struve 754
5.2"
5.7
8.9
287
77
05h 36m 36s
-06d 03m 54s
Near Iota and all great stuff
Struve 877
5.7"
7
7.5
263
39
06h 14m 43s
+14d 35m 11s
Near from Xi Ori (less than 1º)
Struve 652
1.8"
6.3
7.8
182
88
05h 11m 45s
+01d 02m 13s
Crank the power
33
1.9"
5.5
7.3
26
89
05h 31m 14s
+03d 17m 32s
the same here
Struve 790
6.9"
6.4
8.7
89
48
05h 46m 03s
-04d 16m 06s
K0 Spectral class



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