21057+4748 BU 158 AB (HD 201076)
21h 05m 43.99s +47° 48' 17.0" P.A. 304.00 sep 11.0 mag 7.45,12.00 Sp B9V dist. 247.52 pc (807.41 l.y.)
| Coord 2000 |
21057+4748 |
|
Discov num |
BU 158 |
|
Comp |
AB |
|
Coord arcsec 2000 |
21 05 43.99 +47 48 17.0 |
|
| Date first |
1873 |
|
Date last |
2015 |
|
Obs |
17 |
|
| Pa first |
320 |
|
Pa last |
304.3 |
|
P.A. Now (θ) |
304.3° |
|
| Sep first |
12.0 |
|
Sep last |
11.027 |
|
Sep. Now (ρ) |
11.027" |
|
| Mag pri |
7.45 |
|
Mag sec |
12.00 |
|
delta mag (ΔM) |
4.55 |
|
Spectral class |
B9V (blue-white) |
|
| Pri motion ra |
+005 |
|
Sec motion ra |
|
|
| Pri motion dec |
+003 |
|
Sec motion dec |
|
|
| Notes |
W
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 201076 |
|
Constellation |
Cygnus |
|
SAO |
50439 |
|
HIP |
104127 |
|
| Tycho2 |
3592-00142-1 |
|
HD |
201076 |
|
GC |
29481 |
|
ADS |
14627 |
|
| BD |
BD+47 3284 |
|
Distance |
247.52 |
|
Distance ly |
807.41 |
|
