21309+7342 MLB 425
21h 30m 47.44s +73° 40' 52.8" P.A. 338.00 sep 2.0 mag 11.11,11.40
| Coord 2000 |
21309+7342 |
|
Discov num |
MLB 425 |
|
Comp |
|
|
Coord arcsec 2000 |
21 30 47.44 +73 40 52.8 |
|
| Date first |
1925 |
|
Date last |
2020 |
|
Obs |
7 |
|
| Pa first |
334 |
|
Pa last |
337.7 |
|
P.A. Now (θ) |
337.7° |
|
| Sep first |
2.1 |
|
Sep last |
2.04 |
|
Sep. Now (ρ) |
2.04" |
|
| Mag pri |
11.11 |
|
Mag sec |
11.40 |
|
delta mag (ΔM) |
0.29 |
|
Spectral class |
|
|
| Pri motion ra |
+003 |
|
Sec motion ra |
|
|
| Pri motion dec |
-007 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cepheus |
|
Tycho2 |
4473-00982-1 |
|
Gaia DR2 |
2273892614357233152 |
|
