21157+4832 HDS 3024
21h 15m 41.20s +48° 31' 53.3" P.A. 328.00 sep 0.3 mag 9.05,10.93 Sp B8 dist. 332.23 pc (1083.73 l.y.)
| Coord 2000 |
21157+4832 |
|
Discov num |
HDS3024 |
|
Comp |
|
|
Coord arcsec 2000 |
21 15 41.20 +48 31 53.3 |
|
| Date first |
1991 |
|
Date last |
2010 |
|
Obs |
4 |
|
| Pa first |
329 |
|
Pa last |
327.5 |
|
P.A. Now (θ) |
327.5° |
|
| Sep first |
0.3 |
|
Sep last |
0.348 |
|
Sep. Now (ρ) |
0.348" |
|
| Mag pri |
9.05 |
|
Mag sec |
10.93 |
|
delta mag (ΔM) |
1.88 |
|
Spectral class |
B8 (blue-white) |
|
| Pri motion ra |
-002 |
|
Sec motion ra |
|
|
| Pri motion dec |
+000 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
HIP |
104966 |
|
Tycho2 |
3593-04799-1 |
|
Gaia DR2 |
2164950695881331968 |
|
| BD |
BD+47 3349 |
|
Distance |
332.23 |
|
Distance ly |
1083.73 |
|
