21085+5603 PET 1 (HD 239581)
21h 08m 27.65s +56° 02' 43.2" P.A. 343.00 sep 0.2 mag 7.70,11.00 Sp B2V dist. 704.23 pc (2297.2 l.y.)
Coord 2000 |
21085+5603 |
|
Discov num |
PET 1 |
|
Comp |
|
|
Coord arcsec 2000 |
21 08 27.65 +56 02 43.2 |
|
Date first |
2007 |
|
Date last |
2007 |
|
Obs |
1 |
|
Pa first |
343 |
|
Pa last |
343 |
|
P.A. Now (θ) |
343° |
|
Sep first |
0.2 |
|
Sep last |
0.15 |
|
Sep. Now (ρ) |
0.15" |
|
Mag pri |
7.70 |
|
Mag sec |
11.00 |
|
delta mag (ΔM) |
3.3 |
|
Spectral class |
B2V (blue-white) |
|
Pri motion ra |
-002 |
|
Sec motion ra |
|
|
Pri motion dec |
-004 |
|
Sec motion dec |
|
|
Notes |
R
(Red magnitudes) |
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 239581 |
|
Constellation |
Cepheus |
|
SAO |
33168 |
|
HIP |
104356 |
|
Tycho2 |
3957-01726-1 |
|
Gaia DR2 |
2189315396815957376 |
|
HD |
239581 |
|
BD |
BD+55 2530 |
|
Distance |
704.23 |
|
Distance ly |
2297.2 |
|