21552+5030 BLL 56 (LW Cyg)
21h 55m 13.77s +50° 29' 49.8" P.A. 257.00 sep 84.4 mag 9.30,11.76 Sp R dist. 1785.71 pc (5824.99 l.y.)
| Coord 2000 |
21552+5030 |
|
Discov num |
BLL 56 |
|
Comp |
|
|
Coord arcsec 2000 |
21 55 13.77 +50 29 49.8 |
|
| Date first |
1876 |
|
Date last |
2015 |
|
Obs |
10 |
|
| Pa first |
258 |
|
Pa last |
257.3 |
|
P.A. Now (θ) |
257.3° |
|
| Sep first |
84.1 |
|
Sep last |
84.369 |
|
Sep. Now (ρ) |
84.369" |
|
| Mag pri |
9.30 |
|
Mag sec |
11.76 |
|
delta mag (ΔM) |
2.46 |
|
Spectral class |
R (deep red) |
|
| Pri motion ra |
-002 |
|
Sec motion ra |
-006 |
|
| Pri motion dec |
-002 |
|
Sec motion dec |
-005 |
|
| Notes |
|
|
rPM=0.64
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Var name |
LW Cyg |
|
Constellation |
Cygnus |
|
HIP |
108205 |
|
Tycho2 |
3612-00332-1 |
|
| Gaia DR2 |
1979813626637908608 |
|
HD |
208512 |
|
BD |
BD+49 3673 |
|
Distance |
1785.71 |
|
| Distance ly |
5824.99 |
|
