20121+4618 OSO 120 AB
20h 12m 05.66s +46° 18' 01.7" P.A. 30.00 sep 13.5 mag 9.13,17.00 Sp K2 dist. 39.84 pc (129.96 l.y.)
| Coord 2000 |
20121+4618 |
|
Discov num |
OSO 120 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 12 05.66 +46 18 01.7 |
|
| Date first |
1995 |
|
Date last |
1995 |
|
Obs |
1 |
|
| Pa first |
30 |
|
Pa last |
30 |
|
P.A. Now (θ) |
30° |
|
| Sep first |
13.5 |
|
Sep last |
13.5 |
|
Sep. Now (ρ) |
13.5" |
|
| Mag pri |
9.13 |
|
Mag sec |
17.00 |
|
delta mag (ΔM) |
7.87 |
|
Spectral class |
K2 (yellow-orange) |
|
| Pri motion ra |
+222 |
|
Sec motion ra |
|
|
| Pri motion dec |
+292 |
|
Sec motion dec |
|
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
20121+4618 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
49312 |
20 12 06 +46 18 02 |
OSO 120 AB |
1995 |
1 |
30 |
13.5 |
9.13 |
17.00 |
7.87 |
|
<=== |
| Show |
|
49312 |
20 12 06 +46 18 02 |
OSO 120 AC |
2003 |
3 |
192 |
16.7 |
9.13 |
15.20 |
6.07 |
|
|
| Show |
|
49312 |
20 12 06 +46 18 02 |
OSO 120 AD |
1995 |
1 |
90 |
20.2 |
9.13 |
17.20 |
8.07 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
SAO |
49312 |
|
HIP |
99542 |
|
Tycho2 |
3559-02097-1 |
|
| HD |
192239 |
|
BD |
BD+45 3091 |
|
Distance |
39.84 |
|
Distance ly |
129.96 |
|
