21487+4357 GRV 509
21h 48m 44.75s +43° 57' 54.4" P.A. 177.00 sep 56.4 mag 9.67,13.79 Sp F8
| Coord 2000 |
21487+4357 |
|
Discov num |
GRV 509 |
|
Comp |
|
|
Coord arcsec 2000 |
21 48 44.75 +43 57 54.4 |
|
| Date first |
2000 |
|
Date last |
2015 |
|
Obs |
7 |
|
| Pa first |
178 |
|
Pa last |
177.1 |
|
P.A. Now (θ) |
177.1° |
|
| Sep first |
56.5 |
|
Sep last |
56.418 |
|
Sep. Now (ρ) |
56.418" |
|
| Mag pri |
9.67 |
|
Mag sec |
13.79 |
|
delta mag (ΔM) |
4.12 |
|
Spectral class |
F8 (yellow-white) |
|
| Pri motion ra |
-031 |
|
Sec motion ra |
-006 |
|
| Pri motion dec |
-019 |
|
Sec motion dec |
-014 |
|
| Notes |
|
|
rPM=0.701
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3196-00044-1 |
|
Gaia DR2 |
1973036614910858624 |
|
