21301+2946 GRV 471
21h 30m 08.49s +29° 46' 20.4" P.A. 306.00 sep 21.0 mag 10.62,11.59 Sp A0
| Coord 2000 |
21301+2946 |
|
Discov num |
GRV 471 |
|
Comp |
|
|
Coord arcsec 2000 |
21 30 08.49 +29 46 20.4 |
|
| Date first |
1894 |
|
Date last |
2016 |
|
Obs |
13 |
|
| Pa first |
304 |
|
Pa last |
305.5 |
|
P.A. Now (θ) |
305.5° |
|
| Sep first |
21.4 |
|
Sep last |
21.036 |
|
Sep. Now (ρ) |
21.036" |
|
| Mag pri |
10.62 |
|
Mag sec |
11.59 |
|
delta mag (ΔM) |
0.97 |
|
Spectral class |
A0 (white) |
|
| Pri motion ra |
-021 |
|
Sec motion ra |
-018 |
|
| Pri motion dec |
-017 |
|
Sec motion dec |
-018 |
|
| Notes |
V
(Proper motion indicates physical) |
|
rPM=0.117 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Gaia DR2 |
1850020402130521216 |
|
