21255+5418 A 1697
21h 25m 30.14s +54° 18' 11.7" P.A. 251.00 sep 3.8 mag 9.67,13.00 Sp F0
| Coord 2000 |
21255+5418 |
|
Discov num |
A 1697 |
|
Comp |
|
|
Coord arcsec 2000 |
21 25 30.14 +54 18 11.7 |
|
| Date first |
1907 |
|
Date last |
2016 |
|
Obs |
11 |
|
| Pa first |
252 |
|
Pa last |
251 |
|
P.A. Now (θ) |
251° |
|
| Sep first |
3.4 |
|
Sep last |
3.755 |
|
Sep. Now (ρ) |
3.755" |
|
| Mag pri |
9.67 |
|
Mag sec |
13.00 |
|
delta mag (ΔM) |
3.33 |
|
Spectral class |
F0 (yellow-white) |
|
| Pri motion ra |
+006 |
|
Sec motion ra |
|
|
| Pri motion dec |
+012 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
SAO |
33419 |
|
Tycho2 |
3966-00645-1 |
|
Gaia DR2 |
2176024775140518016 |
|
| HD |
235514 |
|
