21306+4852 OSO 148 AB
21h 30m 37.29s +48° 51' 59.6" P.A. 170.00 sep 16.1 mag 10.67,16.16 Sp sd?G2
| Coord 2000 |
21306+4852 |
|
Discov num |
OSO 148 |
|
Comp |
AB |
|
Coord arcsec 2000 |
21 30 37.29 +48 51 59.6 |
|
| Date first |
1952 |
|
Date last |
2003 |
|
Obs |
4 |
|
| Pa first |
208 |
|
Pa last |
169.8 |
|
P.A. Now (θ) |
169.8° |
|
| Sep first |
15.1 |
|
Sep last |
16.145 |
|
Sep. Now (ρ) |
16.145" |
|
| Mag pri |
10.67 |
|
Mag sec |
16.16 |
|
delta mag (ΔM) |
5.49 |
|
Spectral class |
sd?G2 |
|
| Pri motion ra |
-199 |
|
Sec motion ra |
|
|
| Pri motion dec |
+053 |
|
Sec motion dec |
|
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
21306+4852 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
21 30 37 +48 51 60 |
OSO 148 AB |
2003 |
4 |
170 |
16.1 |
10.67 |
16.16 |
5.49 |
|
<=== |
| Show |
|
|
21 30 37 +48 51 60 |
OSO 148 AC |
2014 |
7 |
119 |
23.8 |
10.67 |
16.00 |
5.33 |
|
|
| Show |
|
|
21 30 37 +48 51 60 |
OSO 148 AD |
2014 |
8 |
346 |
18.6 |
10.67 |
12.25 |
1.58 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3598-00653-1 |
|
Gaia DR2 |
1978718611820256256 |
|
