21161+2951 BWL 56 Aa,Ab
21h 16m 05.81s +29° 51' 50.8" P.A. 163.00 sep 0.1 mag 8.50,8.80 Sp M4.0
Coord 2000 |
21161+2951 |
|
Discov num |
BWL 56 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
21 16 05.81 +29 51 50.8 |
|
Date first |
2011 |
|
Date last |
2018 |
|
Obs |
5 |
|
Pa first |
355 |
|
Pa last |
163.1 |
|
P.A. Now (θ) |
163.1° |
|
Sep first |
0.1 |
|
Sep last |
0.058 |
|
Sep. Now (ρ) |
0.058" |
|
Mag pri |
8.50 |
|
Mag sec |
8.80 |
|
delta mag (ΔM) |
0.3 |
|
Spectral class |
M4.0 (red) |
|
Pri motion ra |
+206 |
|
Sec motion ra |
|
|
Pri motion dec |
+035 |
|
Sec motion dec |
|
|
Notes |
N
K
(See Notes, K-band or other infrared magnitudes) |
|
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
Nature of this double is uncertain.
21161+2951 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
|
21 16 06 +29 51 51 |
BWL 56 Aa,Ab |
2018 |
5 |
163 |
0.1 |
8.50 |
8.80 |
0.30 |
|
<=== |
Show |
|
|
21 16 06 +29 51 51 |
LDS 1053 AB |
2016 |
12 |
259 |
26.0 |
12.89 |
13.83 |
0.94 |
|
|
Show |
|
|
21 16 06 +29 51 51 |
BWL 56 AC |
2012 |
2 |
77 |
3.4 |
7.86 |
20.10 |
12.24 |
|
|
Show |
|
|
21 16 06 +29 51 51 |
BWL 56 AD |
2012 |
2 |
200 |
2.6 |
7.86 |
18.40 |
10.54 |
|
|
Show |
|
|
21 16 06 +29 51 51 |
BWL 56 AE |
2012 |
2 |
226 |
4.4 |
7.86 |
19.40 |
11.54 |
|
|
Show |
|
|
21 16 04 +29 51 46 |
BWL 56 BF |
2011 |
2 |
233 |
3.5 |
8.66 |
23.10 |
14.44 |
|
|
Septuple system
6 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cygnus |
|
Gaia DR2 |
1851868127125091840 |
|