21492+5031 STF 2832 AB (HD 207661)
21h 49m 14.48s +50° 30' 54.2" P.A. 213.00 sep 13.2 mag 7.77,8.32 Sp B9IV dist. 152.44 pc (497.26 l.y.)
| Coord 2000 |
21492+5031 |
|
Discov num |
STF2832 |
|
Comp |
AB |
|
Coord arcsec 2000 |
21 49 14.48 +50 30 54.2 |
|
| Date first |
1828 |
|
Date last |
2019 |
|
Obs |
37 |
|
| Pa first |
212 |
|
Pa last |
212.9 |
|
P.A. Now (θ) |
212.9° |
|
| Sep first |
13.0 |
|
Sep last |
13.21 |
|
Sep. Now (ρ) |
13.21" |
|
| Mag pri |
7.77 |
|
Mag sec |
8.32 |
|
delta mag (ΔM) |
0.55 |
|
Spectral class |
B9IV (blue-white) |
|
| Pri motion ra |
+007 |
|
Sec motion ra |
+007 |
|
| Pri motion dec |
+002 |
|
Sec motion dec |
+002 |
|
| Notes |
V
(Proper motion indicates physical) |
|
This double is physical.
21492+5031 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 207661 |
33781 |
21 49 14 +50 30 54 |
STF 2832 AB |
2019 |
37 |
213 |
13.2 |
7.77 |
8.32 |
0.55 |
|
<=== |
| Show |
|
|
21 49 14 +50 30 54 |
STF 2832 AC |
2018 |
15 |
321 |
45.8 |
7.77 |
11.00 |
3.23 |
|
|
| Show |
|
|
21 49 14 +50 30 54 |
CTT 10 AD |
2018 |
10 |
104 |
125.2 |
7.77 |
11.37 |
3.60 |
|
|
| Show |
|
33781 |
21 49 14 +50 30 43 |
STF 2832 BC |
2018 |
15 |
335 |
51.5 |
8.32 |
11.00 |
2.68 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 207661 |
|
Constellation |
Cygnus |
|
SAO |
33781 |
|
HIP |
107718 |
|
| Tycho2 |
3612-03061-1 |
|
Gaia DR2 |
1980519616178408320 |
|
HD |
207661 |
|
BD |
BD+49 3632 |
|
| Distance |
152.44 |
|
Distance ly |
497.26 |
|
