21579+1231 SLW 1257
21h 57m 52.92s +12° 31' 23.7" P.A. 237.00 sep 138.3 mag 17.67,18.42 Sp M2.4+M2.8
| Coord 2000 |
21579+1231 |
|
Discov num |
SLW1257 |
|
Comp |
|
|
Coord arcsec 2000 |
21 57 52.92 +12 31 23.7 |
|
| Date first |
1998 |
|
Date last |
2015 |
|
Obs |
8 |
|
| Pa first |
237 |
|
Pa last |
236.8 |
|
P.A. Now (θ) |
236.8° |
|
| Sep first |
138.4 |
|
Sep last |
138.326 |
|
Sep. Now (ρ) |
138.326" |
|
| Mag pri |
17.67 |
|
Mag sec |
18.42 |
|
delta mag (ΔM) |
0.75 |
|
Spectral class |
M2.4+M2.8 (red/red) |
|
| Pri motion ra |
-024 |
|
Sec motion ra |
-027 |
|
| Pri motion dec |
-031 |
|
Sec motion dec |
-033 |
|
| Notes |
V
R
(Proper motion indicates physical, Red magnitudes) |
|
rPM=0.085 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Pegasus |
|
Gaia DR2 |
1767702230003531008 |
|