21422+3100 OSO 154 AC
21h 42m 10.52s +30° 59' 48.4" P.A. 239.00 sep 15.8 mag 12.66,18.00
| Coord 2000 |
21422+3100 |
|
Discov num |
OSO 154 |
|
Comp |
AC |
|
Coord arcsec 2000 |
21 42 10.52 +30 59 48.4 |
|
| Date first |
1994 |
|
Date last |
1994 |
|
Obs |
2 |
|
| Pa first |
239 |
|
Pa last |
239.2 |
|
P.A. Now (θ) |
239.2° |
|
| Sep first |
15.7 |
|
Sep last |
15.81 |
|
Sep. Now (ρ) |
15.81" |
|
| Mag pri |
12.66 |
|
Mag sec |
18.00 |
|
delta mag (ΔM) |
5.34 |
|
Spectral class |
|
|
| Pri motion ra |
-132 |
|
Sec motion ra |
|
|
| Pri motion dec |
-260 |
|
Sec motion dec |
|
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
21422+3100 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
21 42 11 +30 59 48 |
OSO 154 AB |
1998 |
3 |
25 |
15.3 |
12.66 |
16.60 |
3.94 |
|
|
| Show |
|
|
21 42 11 +30 59 48 |
OSO 154 AC |
1994 |
2 |
239 |
15.8 |
12.66 |
18.00 |
5.34 |
|
<=== |
| Show |
|
|
21 42 11 +30 59 48 |
OSO 154 AD |
1998 |
3 |
166 |
16.4 |
12.66 |
18.00 |
5.34 |
|
|
| Show |
|
|
21 42 11 +30 59 48 |
OSO 154 AE |
1994 |
2 |
108 |
19.6 |
12.66 |
18.50 |
5.84 |
|
|
Quintuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Gaia DR2 |
1945845069576623872 |
|
