21103+5512 BU 1500 AB
21h 10m 18.64s +55° 11' 55.9" P.A. 114.00 sep 7.8 mag 10.64,14.60 Sp B8
| Coord 2000 |
21103+5512 |
|
Discov num |
BU 1500 |
|
Comp |
AB |
|
Coord arcsec 2000 |
21 10 18.64 +55 11 55.9 |
|
| Date first |
1907 |
|
Date last |
2015 |
|
Obs |
8 |
|
| Pa first |
117 |
|
Pa last |
114.3 |
|
P.A. Now (θ) |
114.3° |
|
| Sep first |
8.2 |
|
Sep last |
7.773 |
|
Sep. Now (ρ) |
7.773" |
|
| Mag pri |
10.64 |
|
Mag sec |
14.60 |
|
delta mag (ΔM) |
3.96 |
|
Spectral class |
B8 (blue-white) |
|
| Pri motion ra |
+002 |
|
Sec motion ra |
|
|
| Pri motion dec |
-006 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
21103+5512 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
21 10 19 +55 11 56 |
BU 1500 AB |
2015 |
8 |
114 |
7.8 |
10.64 |
14.60 |
3.96 |
|
<=== |
| Show |
|
|
21 10 19 +55 11 56 |
HJ 1622 AC |
2015 |
10 |
296 |
12.8 |
10.64 |
12.50 |
1.86 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3957-01075-1 |
|
Gaia DR2 |
2176838516815040000 |
|
