21416+2911 GRV 493
21h 41m 39.40s +29° 11' 34.7" P.A. 184.00 sep 44.7 mag 11.75,14.04
| Coord 2000 |
21416+2911 |
|
Discov num |
GRV 493 |
|
Comp |
|
|
Coord arcsec 2000 |
21 41 39.40 +29 11 34.7 |
|
| Date first |
1997 |
|
Date last |
2015 |
|
Obs |
7 |
|
| Pa first |
184 |
|
Pa last |
184.2 |
|
P.A. Now (θ) |
184.2° |
|
| Sep first |
44.5 |
|
Sep last |
44.662 |
|
Sep. Now (ρ) |
44.662" |
|
| Mag pri |
11.75 |
|
Mag sec |
14.04 |
|
delta mag (ΔM) |
2.29 |
|
Spectral class |
|
|
| Pri motion ra |
-012 |
|
Sec motion ra |
-012 |
|
| Pri motion dec |
-008 |
|
Sec motion dec |
-019 |
|
| Notes |
|
|
rPM=0.489
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
SAO |
164582 |
|
Tycho2 |
2201-00846-1 |
|
Gaia DR2 |
1849335131507700352 |
|
