21372+4739 BEM 39 AB
21h 37m 12.34s +47° 39' 14.1" P.A. 329.00 sep 15.7 mag 10.06,11.20
Coord 2000 |
21372+4739 |
|
Discov num |
BEM 39 |
|
Comp |
AB |
|
Coord arcsec 2000 |
21 37 12.34 +47 39 14.1 |
|
Date first |
1894 |
|
Date last |
2016 |
|
Obs |
12 |
|
Pa first |
333 |
|
Pa last |
328.7 |
|
P.A. Now (θ) |
328.7° |
|
Sep first |
17.4 |
|
Sep last |
15.678 |
|
Sep. Now (ρ) |
15.678" |
|
Mag pri |
10.06 |
|
Mag sec |
11.20 |
|
delta mag (ΔM) |
1.14 |
|
Spectral class |
|
|
Pri motion ra |
+002 |
|
Sec motion ra |
+000 |
|
Pri motion dec |
-002 |
|
Sec motion dec |
+001 |
|
Notes |
|
|
rPM=1.275
This double is not physical.
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 |
|
Tycho2 |
3595-02330-1 |
|
Gaia DR2 |
1977626904164861440 |
|