21109+4658 JNN 290 BD
21h 10m 58.78s +46° 57' 32.1" P.A. 189.00 sep 3.4 mag 13.79,18.00 Sp M2.5
| Coord 2000 |
21109+4658 |
|
Discov num |
JNN 290 |
|
Comp |
BD |
|
Coord arcsec 2000 |
21 10 58.78 +46 57 32.1 |
|
| Date first |
2011 |
|
Date last |
2012 |
|
Obs |
3 |
|
| Pa first |
192 |
|
Pa last |
189 |
|
P.A. Now (θ) |
189° |
|
| Sep first |
3.7 |
|
Sep last |
3.356 |
|
Sep. Now (ρ) |
3.356" |
|
| Mag pri |
13.79 |
|
Mag sec |
18.00 |
|
delta mag (ΔM) |
4.21 |
|
Spectral class |
M2.5 (red) |
|
| Pri motion ra |
-220 |
|
Sec motion ra |
|
|
| Pri motion dec |
-314 |
|
Sec motion dec |
|
|
| Notes |
N
U
(See Notes, Proper motion indicates non-physical) |
|
This double is not physical.
21109+4658 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
21 10 57 +46 57 58 |
GIC 166 AB |
2016 |
10 |
150 |
29.3 |
13.54 |
13.79 |
0.25 |
|
|
| Show |
|
|
21 10 59 +46 57 32 |
JNN 290 BC |
2012 |
3 |
36 |
2.4 |
13.79 |
17.00 |
3.21 |
|
|
| Show |
|
|
21 10 59 +46 57 32 |
JNN 290 BD |
2012 |
3 |
189 |
3.4 |
13.79 |
18.00 |
4.21 |
|
<=== |
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Gaia DR2 |
2164331434639562112 |
|