33 Doubles in Cassiopeia


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 July, 2003 to 31st August, 2003  Click here for a Road-Map of this observing project!.

New!: Rafa Barberá has programmed a new DI calculator for knowing in advanve the difficulty to split a doble star named pLADIC for the Palm computing platform. Just click here to get all the details!
New: If you are a Skymap user, only click here for downloading a file containing all the doubles for this project!
 

 
Name
Distance
Mv1
Mv2
PA
RA(J2000)
Dec(J2000)
Struve 3053
15.1"
5.87
7.20
72°
00h 02m 36s
+66° 05' 56"
HIP 207
 n/a
Struve 3057
3.5"
6.61
9.42
300°
00h 04m 55s
+58° 31' 56"
HIP 398
 86.53
Struve 3062
1.5"
6.45
7.38
328°
00h 06m 16s
+58° 26' 12"
HIP 518
 81.47
Struve 7
1.2"
8.02
8.53
212°
00h 11m 39s
+55° 57' 41"
HIP 945
 78.22
Struve 48
5.5"
7.22
7.47
334°
00h 42m 40s
+71° 21' 57"
HIP 3348
 36.28
Struve 59
2.3"
7.27
8.15
146°
00h 47m 59s
+51° 26' 41"
HIP 3736
 74.21
Struve 60 (eta)
12.7"
3.46
7.24
317°
00h 49m 06s
+57° 48' 57"
HIP 3821
 n/a
Struve 65
3.0"
7.20
7.24
39°
00h 52m 45s
+68° 51' 57"
HIP 4116
 48.89
Struve 70
8.2"
6.27
9.70
247º
00h 53m 47s
+52° 41' 21"
HIP 4212
59.81
Espin 940
62.1"
7.50
9.50
359°
00h 57m 20s
+52° 14' 24"
HIP 4477
n/a 
Otto Struve 23
14.6"
8.09
8.53
191°
01h 10m 08s
+51° 44' 48"
HIP 5480
 n/a
Burnham 235 Aa
1.1"
7.55
7.89
133°
01h 10m 34s
+51° 00' 48"
HIP 5512
 78.17
Burnham 258
1.5"
6.52
8.88
263°
01h 13m 09s
+61° 42' 22"
HIP 5688
93.54
Otto Struve 35
12.7" 
7.20 
10.40 
99° 
01h 43m 47s 
+55° 52' 39" 
HIP 8081 
n/a
Burnham 870
0.7"
6.36
8.56
348°
01h 44m 18s
+57° 32' 12"
HIP 8115
n/a
Struve 163
34.6"
6.54
9.17
37°
01h 51m 17s
+64° 51' 18"
HIP 8626
n/a 
Struve 170
3.2"
6.97
7.72
244°
01h 55m 27s
+76° 13' 28"
HIP 8962
 59.73
Struve 182
3.5"
7.43
7.47
124°
01h 56m 23s
+61° 16' 52"
HIP 9037
 43.59
Struve 185
1.1"
6.80
8.66
02h 02m 09s
+75° 30' 07"
HIP 9494
94.73
Struve 191
5.1"
6.12
9.33
199°
02h 03m 10s
+73° 51' 02"
HIP 9586
 78.02
Otto Struve 26
63.1"
6.94
7.18
200°
02h 19m 44s
+60° 01' 46"
HIP 10856
n/a 
Struve 262 (Iota)
2.7"
4.46
6.93
230°
02h 29m 04s
+67° 24' 09"
HIP 11569
 91.68
Struve 283
1.7"
8.38
9.03
208°
02h 40m 32s
+61° 29' 02"
---
74.92
Struve 306
2.2"-123.7"
7.42
9.22-8.23
94°-157°
02h 51m 08s
+60° 25' 04"
HIP 13296
 86.80
Struve 312
1.9"
8.19
9.03
41°
02h 56m 11s
+72° 53' 10"
HIP 13677
 74.87
Struve 349
6.1"
7.43
8.14
317°
03h 10m 50s
+63° 47' 15"
HIP 14780
 39.74
Otto Struve 50
1.0"
8.45
8.54
159°
03h 12m 39s
+71° 33' 20"
HIP 14944
 76.51
Otto Struve 485
18.9"
6.50
9.80
48°
23h 02m 43s
+55° 14' 11"
HIP 113797
n/a 
Otto Struve 499 A-BC
9.7"
7.32
9.43
77°
23h 33m 12s
+57° 24' 28"
HIP 116243
 36.91
Struve 3037
29.4"
7.30
9.86
189°
23h 46m 08s
+60° 28' 23"
HIP 117227
 n/a
Otto Struve 508
1.4"
5.69
8.01
197°
23h 48m 50s
+62° 12' 52"
HIP 117447
 92.47
Struve 3049 (Sigma)
3.2"
4.88
7.22
327°
23h 59m 01s
+55° 45' 18"
HIP 118243
 80.41
Otto Struve 254 (WZ Cas)
58.0"
7.40
8.33
89°
00h 01m 16s
+60° 21' 19"
HIP 99
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.



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www.s33.org