21590+5432 ES 684
21h 58m 59.66s +54° 31' 35.6" P.A. 276.00 sep 4.2 mag 10.04,13.30
| Coord 2000 |
21590+5432 |
|
Discov num |
ES 684 |
|
Comp |
|
|
Coord arcsec 2000 |
21 58 59.66 +54 31 35.6 |
|
| Date first |
1908 |
|
Date last |
2018 |
|
Obs |
5 |
|
| Pa first |
273 |
|
Pa last |
275.6 |
|
P.A. Now (θ) |
275.6° |
|
| Sep first |
4.3 |
|
Sep last |
4.17 |
|
Sep. Now (ρ) |
4.17" |
|
| Mag pri |
10.04 |
|
Mag sec |
13.30 |
|
delta mag (ΔM) |
3.26 |
|
Spectral class |
|
|
| Pri motion ra |
+005 |
|
Sec motion ra |
|
|
| Pri motion dec |
-003 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3972-00252-1 |
|
Gaia DR2 |
2173755108267722880 |
|
