21187+4428 LDS 2507
21h 18m 08.57s +44° 28' 00.0" P.A. 182.00 sep 3.0 mag 19.60,20.80
| Coord 2000 |
21187+4428 |
|
Discov num |
LDS2507 |
|
Comp |
|
|
Coord arcsec 2000 |
21 18 08.57 +44 28 00.0 |
|
| Date first |
1954 |
|
Date last |
1954 |
|
Obs |
1 |
|
| Pa first |
182 |
|
Pa last |
182 |
|
P.A. Now (θ) |
182° |
|
| Sep first |
3.0 |
|
Sep last |
3 |
|
Sep. Now (ρ) |
3" |
|
| Mag pri |
19.60 |
|
Mag sec |
20.80 |
|
delta mag (ΔM) |
1.2 |
|
Spectral class |
|
|
| Pri motion ra |
+001 |
|
Sec motion ra |
|
|
| Pri motion dec |
+039 |
|
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 |
|
