21397+2041 GMC 23
21h 39m 44.08s +20° 40' 39.3" P.A. 342.00 sep 10.5 mag 16.40,19.20 Sp K7V+M3V
| Coord 2000 |
21397+2041 |
|
Discov num |
GMC 23 |
|
Comp |
|
|
Coord arcsec 2000 |
21 39 44.08 +20 40 39.3 |
|
| Date first |
1951 |
|
Date last |
2016 |
|
Obs |
7 |
|
| Pa first |
341 |
|
Pa last |
342 |
|
P.A. Now (θ) |
342° |
|
| Sep first |
10.7 |
|
Sep last |
10.511 |
|
Sep. Now (ρ) |
10.511" |
|
| Mag pri |
16.40 |
|
Mag sec |
19.20 |
|
delta mag (ΔM) |
2.8 |
|
Spectral class |
K7V+M3V (yellow-orange/red) |
|
| Pri motion ra |
-017 |
|
Sec motion ra |
-018 |
|
| Pri motion dec |
-028 |
|
Sec motion dec |
-029 |
|
| Notes |
V
(Proper motion indicates physical) |
|
rPM=0.041 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Pegasus |
|
Gaia DR2 |
1792806485647921152 |
|
