21019+5704 BU 1139 (HD 200575)
21h 01m 55.01s +57° 04' 18.7" P.A. 136.00 sep 2.1 mag 6.69,12.50 Sp B8V dist. 311.53 pc (1016.21 l.y.)
Coord 2000 |
21019+5704 |
|
Discov num |
BU 1139 |
|
Comp |
|
|
Coord arcsec 2000 |
21 01 55.01 +57 04 18.7 |
|
Date first |
1889 |
|
Date last |
2010 |
|
Obs |
6 |
|
Pa first |
139 |
|
Pa last |
135.9 |
|
P.A. Now (θ) |
135.9° |
|
Sep first |
1.9 |
|
Sep last |
2.084 |
|
Sep. Now (ρ) |
2.084" |
|
Mag pri |
6.69 |
|
Mag sec |
12.50 |
|
delta mag (ΔM) |
5.81 |
|
Spectral class |
B8V (blue-white) |
|
Pri motion ra |
+003 |
|
Sec motion ra |
|
|
Pri motion dec |
+004 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 200575 |
|
Constellation |
Cepheus |
|
SAO |
33075 |
|
HIP |
103792 |
|
Tycho2 |
3960-00680-1 |
|
Gaia DR2 |
2189664594839084160 |
|
HD |
200575 |
|
GC |
29386 |
|
ADS |
14574 |
|
BD |
BD+56 2523 |
|
Distance |
311.53 |
|
Distance ly |
1016.21 |
|