21176+4023 LDS 2505
21h 17m 30.24s +40° 24' 12.2" P.A. 23.00 sep 4.3 mag 13.70,16.60
| Coord 2000 |
21176+4023 |
|
Discov num |
LDS2505 |
|
Comp |
|
|
Coord arcsec 2000 |
21 17 30.24 +40 24 12.2 |
|
| Date first |
1954 |
|
Date last |
1998 |
|
Obs |
2 |
|
| Pa first |
16 |
|
Pa last |
22.6 |
|
P.A. Now (θ) |
22.6° |
|
| Sep first |
5.5 |
|
Sep last |
4.33 |
|
Sep. Now (ρ) |
4.33" |
|
| Mag pri |
13.70 |
|
Mag sec |
16.60 |
|
delta mag (ΔM) |
2.9 |
|
Spectral class |
|
|
| Pri motion ra |
+014 |
|
Sec motion ra |
|
|
| Pri motion dec |
+027 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Gaia DR2 |
1968638877639701504 |
|
