21549+6159 OSO 161 AC
21h 54m 55.27s +61° 59' 16.2" P.A. 36.00 sep 21.8 mag 9.85,16.50 Sp K2
| Coord 2000 |
21549+6159 |
|
Discov num |
OSO 161 |
|
Comp |
AC |
|
Coord arcsec 2000 |
21 54 55.27 +61 59 16.2 |
|
| Date first |
1994 |
|
Date last |
2015 |
|
Obs |
4 |
|
| Pa first |
39 |
|
Pa last |
36.3 |
|
P.A. Now (θ) |
36.3° |
|
| Sep first |
18.2 |
|
Sep last |
21.835 |
|
Sep. Now (ρ) |
21.835" |
|
| Mag pri |
9.85 |
|
Mag sec |
16.50 |
|
delta mag (ΔM) |
6.65 |
|
Spectral class |
K2 (yellow-orange) |
|
| Pri motion ra |
-075 |
|
Sec motion ra |
|
|
| Pri motion dec |
-172 |
|
Sec motion dec |
|
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
21549+6159 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
21 54 55 +61 59 16 |
OSO 161 AB |
2014 |
5 |
335 |
14.8 |
11.64 |
19.00 |
7.36 |
|
|
| Show |
|
|
21 54 55 +61 59 16 |
OSO 161 AC |
2015 |
4 |
36 |
21.8 |
9.85 |
16.50 |
6.65 |
|
<=== |
| Show |
|
|
21 54 55 +61 59 16 |
OSO 161 AD |
2003 |
3 |
19 |
19.8 |
11.64 |
16.60 |
4.96 |
|
|
| Show |
|
|
21 54 55 +61 59 16 |
OSO 161 AE |
2014 |
5 |
315 |
20.4 |
11.64 |
18.90 |
7.26 |
|
|
Quintuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cepheus |
|
Gaia DR2 |
2204280918303856640 |
|
