21031+2929 OSO 139 AD
21h 03m 06.12s +29° 28' 56.2" P.A. 110.00 sep 26.3 mag 10.15,14.08 dist. 129.87 pc (423.64 l.y.)
| Coord 2000 |
21031+2929 |
|
Discov num |
OSO 139 |
|
Comp |
AD |
|
Coord arcsec 2000 |
21 03 06.12 +29 28 56.2 |
|
| Date first |
1994 |
|
Date last |
2002 |
|
Obs |
4 |
|
| Pa first |
114 |
|
Pa last |
109.9 |
|
P.A. Now (θ) |
109.9° |
|
| Sep first |
24.9 |
|
Sep last |
26.284 |
|
Sep. Now (ρ) |
26.284" |
|
| Mag pri |
10.15 |
|
Mag sec |
14.08 |
|
delta mag (ΔM) |
3.93 |
|
Spectral class |
|
|
| Pri motion ra |
-262 |
|
Sec motion ra |
+002 |
|
| Pri motion dec |
-167 |
|
Sec motion dec |
+000 |
|
| Notes |
N
(See Notes) |
|
rPM=1.005
This double is not physical.
21031+2929 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
21 03 06 +29 28 56 |
OSO 139 AB |
1998 |
3 |
82 |
15.8 |
10.19 |
18.00 |
7.81 |
|
|
| Show |
|
|
21 03 06 +29 28 56 |
OSO 139 AC |
1998 |
3 |
308 |
18.8 |
10.19 |
16.50 |
6.31 |
|
|
| Show |
|
|
21 03 06 +29 28 56 |
OSO 139 AD |
2002 |
4 |
110 |
26.3 |
10.15 |
14.08 |
3.93 |
|
<=== |
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
HIP |
103897 |
|
Gaia DR2 |
1852390296368162816 |
|
BD |
BD+28 3971 |
|
| Distance |
129.87 |
|
Distance ly |
423.64 |
|
