21187+2149 LDS 4878
21h 18m 46.10s +21° 49' 57.3" P.A. 10.00 sep 12.6 mag 17.30,17.80 Sp M4+M4
| Coord 2000 |
21187+2149 |
|
Discov num |
LDS4878 |
|
Comp |
|
|
Coord arcsec 2000 |
21 18 46.10 +21 49 57.3 |
|
| Date first |
1960 |
|
Date last |
2016 |
|
Obs |
10 |
|
| Pa first |
10 |
|
Pa last |
9.7 |
|
P.A. Now (θ) |
9.7° |
|
| Sep first |
13.0 |
|
Sep last |
12.565 |
|
Sep. Now (ρ) |
12.565" |
|
| Mag pri |
17.30 |
|
Mag sec |
17.80 |
|
delta mag (ΔM) |
0.5 |
|
Spectral class |
M4+M4 (red/red) |
|
| Pri motion ra |
-064 |
|
Sec motion ra |
-070 |
|
| Pri motion dec |
+074 |
|
Sec motion dec |
+078 |
|
| Notes |
V
(Proper motion indicates physical) |
|
rPM=0.069 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Vulpecula |
|
Gaia DR2 |
1791520606798503552 |
|
