21058+2931 LDS 2938
21h 05m 49.28s +29° 31' 26.3" P.A. 247.00 sep 23.5 mag 10.32,16.80 Sp M9pev
| Coord 2000 |
21058+2931 |
|
Discov num |
LDS2938 |
|
Comp |
|
|
Coord arcsec 2000 |
21 05 49.28 +29 31 26.3 |
|
| Date first |
1953 |
|
Date last |
2016 |
|
Obs |
10 |
|
| Pa first |
245 |
|
Pa last |
246.7 |
|
P.A. Now (θ) |
246.7° |
|
| Sep first |
24.0 |
|
Sep last |
23.453 |
|
Sep. Now (ρ) |
23.453" |
|
| Mag pri |
10.32 |
|
Mag sec |
16.80 |
|
delta mag (ΔM) |
6.48 |
|
Spectral class |
M9pev (red) |
|
| Pri motion ra |
-046 |
|
Sec motion ra |
|
|
| Pri motion dec |
-092 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Gaia DR2 |
1852215096062887552 |
|
