21047+4902 HU 590 (HD 200927)
21h 04m 43.42s +49° 01' 44.1" P.A. 91.00 sep 0.1 mag 8.63,9.10 Sp B6V dist. 684.93 pc (2234.24 l.y.)
Coord 2000 |
21047+4902 |
|
Discov num |
HU 590 |
|
Comp |
|
|
Coord arcsec 2000 |
21 04 43.42 +49 01 44.1 |
|
Date first |
1902 |
|
Date last |
2014 |
|
Obs |
23 |
|
Pa first |
88 |
|
Pa last |
90.7 |
|
P.A. Now (θ) |
90.7° |
|
Sep first |
0.4 |
|
Sep last |
0.148 |
|
Sep. Now (ρ) |
0.148" |
|
Mag pri |
8.63 |
|
Mag sec |
9.10 |
|
delta mag (ΔM) |
0.47 |
|
Spectral class |
B6V (blue-white) |
|
Pri motion ra |
+011 |
|
Sec motion ra |
|
|
Pri motion dec |
-004 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 200927 |
|
Constellation |
Cygnus |
|
SAO |
50422 |
|
HIP |
104044 |
|
Tycho2 |
3596-01230-1 |
|
Gaia DR2 |
2165626006491354240 |
|
HD |
200927 |
|
BD |
BD+48 3279 |
|
Distance |
684.93 |
|
Distance ly |
2234.24 |
|