20474+5407 ES 997
20h 47m 25.37s +54° 06' 48.2" P.A. 274.00 sep 3.3 mag 10.87,13.20 Sp B8
| Coord 2000 |
20474+5407 |
|
Discov num |
ES 997 |
|
Comp |
|
|
Coord arcsec 2000 |
20 47 25.37 +54 06 48.2 |
|
| Date first |
1910 |
|
Date last |
2015 |
|
Obs |
4 |
|
| Pa first |
271 |
|
Pa last |
273.6 |
|
P.A. Now (θ) |
273.6° |
|
| Sep first |
2.8 |
|
Sep last |
3.281 |
|
Sep. Now (ρ) |
3.281" |
|
| Mag pri |
10.87 |
|
Mag sec |
13.20 |
|
delta mag (ΔM) |
2.33 |
|
Spectral class |
B8 (blue-white) |
|
| Pri motion ra |
+002 |
|
Sec motion ra |
|
|
| Pri motion dec |
-007 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3951-00905-1 |
|
Gaia DR2 |
2182911428782670976 |
|
ADS |
14305 |
|
