33 Doubles in Perseus

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. Our time "window" for observing this set of doubles is from 1st November, 2002 to 31th December, 2002. Click here for a Road-Map of this observing project!.
New: Dates given in red font are targets for measuring in this project.
 
Name
Distance*
Mv1*
Mv2*
PA*
RA(J2001)
Dec(J2001)
DI
Struve 162
2.0-20.8-137.2
5.82 
6.80-9.40-10.20 
203-178-95
01h 49.3m
+47° 54' 
 -----
79.67
Struve 230 (A-B:1925)
24.1
7.86
9.10
258
02h 14m 57s
+58° 29' 26"
-----
 n/a

Struve 260
6.6
8.70
9.20
347
02h 26m 27s
+54° 16' 58"
11371
 28.65
Struve 270
(A-C:1926)
21.3"-38.3"
7.40
9.20-10.60
304°-338°
02h 30m 50s
+55° 32' 54"
11696
 n/a
Struve 272
1.8"
8.30
8.30
36°
02h 33m 08s
+58° 27' 44"
11870
 65.49
Struve 301
8.2"
7.80
8.80
17°
02h 47m 38s
+53° 56' 35"
13049
 31.47
Struve 304
25.8"
7.56
9.10
289°
02h 48m 50s
+49° 11' 02"
13124
 n/a
15 (eta)
28.3"-66.6"
3.76
8.50-9.90
301°-268°
02h 50m 42s
+55° 53' 44"
13268
 n/a
Struve 331
12.3"
5.28
6.74
85°
03h 00m 52s
+52° 21' 06"
14043
 n/a
Struve 336
8.6"
6.90
8.40
03h 01m 29s
+32° 24' 46"
14081
 37.99
Struve 360
2.7"
8.10
8.30
126°
03h 12m 09s
+37° 13' 04"
14886
 63.72
Struve 364
11.5"
9.00
9.00
311°
03h 13m 35s
+39° 8' 41"
15019
 n/a
Struve 369
3.5"
6.70
8.00
30°
03h 17m 11s
+40° 28' 58"
15282
 71.15
Struve 391
3.9"
7.90
8.60
95°
03h 29m 13s
+45° 02' 57"
16235
 45.12
Struve 413
2.5"
8.60
8.60
128°
03h 35m 23s
+33° 40' 35"
16744
 59.62
Struve 425
2.0"
7.60
7.60
69°
03h 40m 07s
+34° 6' 59"
17129
 62.86
Otto Struve 59
2.7"
8.10
8.40
354°
03h 40m 40s
+46° 01' 24"
17173
 64.22
Struve 426
19.8"
7.85
9.49
341°
03h 40m 50s
+39° 07' 01"
17190
 n/a
Struve 434
32.5"
7.80
8.60
84°
03h 43m 58s
+38° 22' 25"
17424
 n/a
Omicron (38)
1.0"
3.90
8.40
30º
03h 44m 19s
+32° 17' 18"
17448
 100.0
Struve 443
7.3"
8.14
8.74
54°
03h 47m 00s
+41° 25' 33"
-----
 21.57
Struve 464
12.8"
2.85
9.16
208°
03h 54m 08s
+31° 53' 01"
18246
 n/a
Struve 471
8.8"
2.99
7.50
10°
03h 57m 51s
+40° 00' 37"
18532
 68.37
Struve 476
21.9"
7.90
9.10
287°
04h 01m 34s
+38° 39' 55"
18793
 n/a
Otto Struve 531
1.9"-232.6"
7.30
9.00-8.00
2°-210°
04h 07m 34s
+38° 4' 28"
19255
 88.12
Struve 512
5.2"
8.80
8.80
220°
04h 15m 45s
+45° 23' 37"
19874
 32.07
Struve 519
18.3"
7.90
9.40
346°
04h 20m 53s
+50° 22' 39"
 -----
 n/a
Struve 521
2.1"
7.50
9.60
257°
04h 21m 45s
+50° 02' 06"
20370
 88.78
Struve 533
19.6"
7.20
8.70
61°
04h 24m 24s
+34° 18' 53"
20570
 n/a
Struve 552
9.0"
7.00
7.20
114°
04h 31m 24s
+40° 00' 37"
21108
 14.91
South 451
58.4"
7.58
7.86
199°
04h 36m 15s
+47° 22' 15"
21437
 n/a
Struve 565
(A-B:1991)
(A-C:1914)
(A-D:1906)
1.4"-29.5"-71.6"
7.50
8.80-11.50-11.00
170°-109°-52°
04h 38m 07s
+42° 07' 02"
----
 90.41
Struve 577
0.9"
8.60
8.60
04h 42m 13s
+37° 30' 53"
21878
n/a

Notes:
For understanding DIs and how they are calculated, please read this article!
n/a: Not applicable: Difficulty Indexes are calculated only for those doubles that have separations between 1.0 and 10.0 seconds of arc and shine with a difference of magnitude between 0 and 5. For an explanation about how to interpret and use DIs, click on the DI link in the column header above.



(c) 1998-2002 The Spirit of 33