21492+5031 STF 2832 AC
21h 49m 14.48s +50° 30' 54.2" P.A. 321.00 sep 45.8 mag 7.77,11.00 Sp B9IV
| Coord 2000 |
21492+5031 |
|
Discov num |
STF2832 |
|
Comp |
AC |
|
Coord arcsec 2000 |
21 49 14.48 +50 30 54.2 |
|
| Date first |
1902 |
|
Date last |
2018 |
|
Obs |
15 |
|
| Pa first |
320 |
|
Pa last |
320.8 |
|
P.A. Now (θ) |
320.8° |
|
| Sep first |
44.0 |
|
Sep last |
45.75 |
|
Sep. Now (ρ) |
45.75" |
|
| Mag pri |
7.77 |
|
Mag sec |
11.00 |
|
delta mag (ΔM) |
3.23 |
|
Spectral class |
B9IV (blue-white) |
|
| Pri motion ra |
+005 |
|
Sec motion ra |
+012 |
|
| Pri motion dec |
+000 |
|
Sec motion dec |
+009 |
|
| Notes |
|
|
rPM=0.76
Nature of this double is uncertain.
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
| Constellation |
Cygnus |
|
Tycho2 |
3612-03061-1 |
|
Gaia DR2 |
1980519616178408320 |
|
