21412+2955 GRV 491
21h 41m 12.78s +29° 55' 31.8" P.A. 21.00 sep 31.4 mag 12.06,12.32
| Coord 2000 |
21412+2955 |
|
Discov num |
GRV 491 |
|
Comp |
|
|
Coord arcsec 2000 |
21 41 12.78 +29 55 31.8 |
|
| Date first |
1894 |
|
Date last |
2015 |
|
Obs |
9 |
|
| Pa first |
21 |
|
Pa last |
21.1 |
|
P.A. Now (θ) |
21.1° |
|
| Sep first |
31.9 |
|
Sep last |
31.445 |
|
Sep. Now (ρ) |
31.445" |
|
| Mag pri |
12.06 |
|
Mag sec |
12.32 |
|
delta mag (ΔM) |
0.26 |
|
Spectral class |
|
|
| Pri motion ra |
-015 |
|
Sec motion ra |
-020 |
|
| Pri motion dec |
-017 |
|
Sec motion dec |
-017 |
|
| Notes |
S
(Parallax indidates non-physical) |
|
rPM=0.19 (< 0.3, Physical double)
This double is not physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
2201-01749-1 |
|
Gaia DR2 |
1849511976784304640 |
|
