21507+3621 COU 1640 AB
21h 50m 40.96s +36° 20' 44.2" P.A. 19.00 sep 2.6 mag 9.49,14.30
| Coord 2000 |
21507+3621 |
|
Discov num |
COU1640 |
|
Comp |
AB |
|
Coord arcsec 2000 |
21 50 40.96 +36 20 44.2 |
|
| Date first |
1977 |
|
Date last |
2014 |
|
Obs |
3 |
|
| Pa first |
19 |
|
Pa last |
18.9 |
|
P.A. Now (θ) |
18.9° |
|
| Sep first |
2.5 |
|
Sep last |
2.636 |
|
Sep. Now (ρ) |
2.636" |
|
| Mag pri |
9.49 |
|
Mag sec |
14.30 |
|
delta mag (ΔM) |
4.81 |
|
Spectral class |
|
|
| Pri motion ra |
+000 |
|
Sec motion ra |
|
|
| Pri motion dec |
-002 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
21507+3621 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
21 50 41 +36 20 44 |
GII 295 Aa,Ab |
2014 |
1 |
51 |
0.1 |
10.20 |
10.20 |
0.00 |
|
|
| Show |
|
|
21 50 41 +36 20 44 |
COU 1640 AB |
2014 |
3 |
19 |
2.6 |
9.49 |
14.30 |
4.81 |
|
<=== |
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Pegasus |
|
Tycho2 |
2730-01701-1 |
|
