21314+5754 ES 1800
21h 31m 25.94s +57° 53' 56.6" P.A. 86.00 sep 3.4 mag 9.66,12.80 Sp B3 dist. 440.53 pc (1437.01 l.y.)
| Coord 2000 |
21314+5754 |
|
Discov num |
ES 1800 |
|
Comp |
|
|
Coord arcsec 2000 |
21 31 25.94 +57 53 56.6 |
|
| Date first |
1919 |
|
Date last |
2016 |
|
Obs |
7 |
|
| Pa first |
89 |
|
Pa last |
85.5 |
|
P.A. Now (θ) |
85.5° |
|
| Sep first |
3.1 |
|
Sep last |
3.44 |
|
Sep. Now (ρ) |
3.44" |
|
| Mag pri |
9.66 |
|
Mag sec |
12.80 |
|
delta mag (ΔM) |
3.14 |
|
Spectral class |
B3 (blue-white) |
|
| Pri motion ra |
-005 |
|
Sec motion ra |
-002 |
|
| Pri motion dec |
+003 |
|
Sec motion dec |
-003 |
|
| Notes |
|
|
rPM=1.15
This double is not physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cepheus |
|
SAO |
33504 |
|
HIP |
106265 |
|
Tycho2 |
3974-00281-1 |
|
| Gaia DR2 |
2179250639178762496 |
|
HD |
239693 |
|
BD |
BD+57 2343 |
|
Distance |
440.53 |
|
| Distance ly |
1437.01 |
|
