21031+5519 ES 1001
21h 03m 04.68s +55° 18' 38.5" P.A. 32.00 sep 3.6 mag 10.10,10.60 Sp B
| Coord 2000 |
21031+5519 |
|
Discov num |
ES 1001 |
|
Comp |
|
|
Coord arcsec 2000 |
21 03 04.68 +55 18 38.5 |
|
| Date first |
1910 |
|
Date last |
2019 |
|
Obs |
11 |
|
| Pa first |
35 |
|
Pa last |
31.8 |
|
P.A. Now (θ) |
31.8° |
|
| Sep first |
5.0 |
|
Sep last |
3.6 |
|
Sep. Now (ρ) |
3.6" |
|
| Mag pri |
10.10 |
|
Mag sec |
10.60 |
|
delta mag (ΔM) |
0.5 |
|
Spectral class |
B (blue-white) |
|
| Pri motion ra |
-011 |
|
Sec motion ra |
|
|
| Pri motion dec |
-015 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3956-00756-1 |
|
Gaia DR2 |
2188896070567106688 |
|
