21092+4152 LDS 2491
21h 09m 30.00s +41° 52' 00.0" P.A. 184.00 sep 17.0 mag 16.80,21.30
| Coord 2000 |
21092+4152 |
|
Discov num |
LDS2491 |
|
Comp |
|
|
Coord arcsec 2000 |
21 09 30.00 +41 52 00.0 |
|
| Date first |
1954 |
|
Date last |
1954 |
|
Obs |
1 |
|
| Pa first |
184 |
|
Pa last |
184 |
|
P.A. Now (θ) |
184° |
|
| Sep first |
17.0 |
|
Sep last |
17 |
|
Sep. Now (ρ) |
17" |
|
| Mag pri |
16.80 |
|
Mag sec |
21.30 |
|
delta mag (ΔM) |
4.5 |
|
Spectral class |
|
|
| Pri motion ra |
+007 |
|
Sec motion ra |
|
|
| Pri motion dec |
+029 |
|
Sec motion dec |
|
|
| Notes |
X
(Dubious double) |
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Coordinate calcolate |
1 |
|
Coordinate calculated |
yes |
|
