21065+4823 BU 836 AB
21h 06m 32.69s +48° 23' 12.4" P.A. 173.00 sep 0.8 mag 9.98,9.64 Sp A
| Coord 2000 |
21065+4823 |
|
Discov num |
BU 836 |
|
Comp |
AB |
|
Coord arcsec 2000 |
21 06 32.69 +48 23 12.4 |
|
| Date first |
1881 |
|
Date last |
2016 |
|
Obs |
24 |
|
| Pa first |
191 |
|
Pa last |
173.1 |
|
P.A. Now (θ) |
173.1° |
|
| Sep first |
0.6 |
|
Sep last |
0.815 |
|
Sep. Now (ρ) |
0.815" |
|
| Mag pri |
9.98 |
|
Mag sec |
9.64 |
|
delta mag (ΔM) |
0.34 |
|
Spectral class |
A (white) |
|
| Pri motion ra |
+004 |
|
Sec motion ra |
+004 |
|
| Pri motion dec |
-004 |
|
Sec motion dec |
-004 |
|
| Notes |
|
|
Nature of this double is uncertain.
21065+4823 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
50455 |
21 06 33 +48 23 12 |
BU 836 AB |
2016 |
24 |
173 |
0.8 |
9.98 |
9.64 |
0.34 |
|
<=== |
| Show |
HD 201231 |
50455 |
21 06 33 +48 23 12 |
BU 836 AB,C |
2016 |
13 |
218 |
27.5 |
9.26 |
11.28 |
2.02 |
|
|
| Show |
|
|
21 06 31 +48 22 51 |
BU 836 CD |
2016 |
10 |
61 |
1.4 |
11.28 |
12.30 |
1.02 |
|
|
Quadruple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
SAO |
50455 |
|
Tycho2 |
3592-05052-1 |
|
Gaia DR2 |
2165534536556332800 |
|
| HD |
201231 |
|
