21372+4739 BEM 39 BC
21h 37m 11.38s +47° 39' 28.3" P.A. 124.00 sep 6.5 mag 11.20,12.70
| Coord 2000 |
21372+4739 |
|
Discov num |
BEM 39 |
|
Comp |
BC |
|
Coord arcsec 2000 |
21 37 11.38 +47 39 28.3 |
|
| Date first |
1898 |
|
Date last |
2016 |
|
Obs |
10 |
|
| Pa first |
110 |
|
Pa last |
124.3 |
|
P.A. Now (θ) |
124.3° |
|
| Sep first |
7.1 |
|
Sep last |
6.532 |
|
Sep. Now (ρ) |
6.532" |
|
| Mag pri |
11.20 |
|
Mag sec |
12.70 |
|
delta mag (ΔM) |
1.5 |
|
Spectral class |
|
|
| Pri motion ra |
+000 |
|
Sec motion ra |
|
|
| Pri motion dec |
+001 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
21372+4739 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
21 37 12 +47 39 14 |
BEM 39 AB |
2016 |
12 |
329 |
15.7 |
10.06 |
11.20 |
1.14 |
|
|
| Show |
|
|
21 37 12 +47 39 14 |
BEM 39 AD |
2016 |
10 |
7 |
25.9 |
10.06 |
13.10 |
3.04 |
|
|
| Show |
|
|
21 37 12 +47 39 14 |
BEM 39 AE |
2016 |
10 |
124 |
25.1 |
10.06 |
13.16 |
3.10 |
|
|
| Show |
|
|
21 37 11 +47 39 28 |
BEM 39 BC |
2016 |
10 |
124 |
6.5 |
11.20 |
12.70 |
1.50 |
|
<=== |
Quintuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Gaia DR2 |
1977626904164858752 |
|
