21452+5431 HDS 3098 (HD 207131)
21h 45m 11.36s +54° 30' 32.9" P.A. 61.00 sep 19.9 mag 8.93,11.68 Sp G dist. 138.5 pc (451.79 l.y.)
| Coord 2000 |
21452+5431 |
|
Discov num |
HDS3098 |
|
Comp |
|
|
Coord arcsec 2000 |
21 45 11.36 +54 30 32.9 |
|
| Date first |
1899 |
|
Date last |
2016 |
|
Obs |
15 |
|
| Pa first |
62 |
|
Pa last |
60.9 |
|
P.A. Now (θ) |
60.9° |
|
| Sep first |
19.5 |
|
Sep last |
19.94 |
|
Sep. Now (ρ) |
19.94" |
|
| Mag pri |
8.93 |
|
Mag sec |
11.68 |
|
delta mag (ΔM) |
2.75 |
|
Spectral class |
G (yellow) |
|
| Pri motion ra |
-004 |
|
Sec motion ra |
-004 |
|
| Pri motion dec |
-002 |
|
Sec motion dec |
-003 |
|
| Notes |
|
|
rPM=0.2 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 207131 |
|
Constellation |
Cygnus |
|
SAO |
33723 |
|
HIP |
107396 |
|
| Tycho2 |
3971-01834-1 |
|
Gaia DR2 |
2174677804679602176 |
|
HD |
207131 |
|
BD |
BD+53 2697 |
|
| Distance |
138.5 |
|
Distance ly |
451.79 |
|
