21455+5356 TDT 3140
21h 45m 30.83s +53° 56' 14.0" P.A. 257.00 sep 1.1 mag 10.65,12.20
| Coord 2000 |
21455+5356 |
|
Discov num |
TDT3140 |
|
Comp |
|
|
Coord arcsec 2000 |
21 45 30.83 +53 56 14.0 |
|
| Date first |
1991 |
|
Date last |
1991 |
|
Obs |
1 |
|
| Pa first |
257 |
|
Pa last |
257.2 |
|
P.A. Now (θ) |
257.2° |
|
| Sep first |
1.1 |
|
Sep last |
1.14 |
|
Sep. Now (ρ) |
1.14" |
|
| Mag pri |
10.65 |
|
Mag sec |
12.20 |
|
delta mag (ΔM) |
1.55 |
|
Spectral class |
|
|
| Pri motion ra |
-023 |
|
Sec motion ra |
-023 |
|
| Pri motion dec |
-017 |
|
Sec motion dec |
-017 |
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3967-02454-1 |
|
Gaia DR2 |
2173525477824756736 |
|
