21193+5837 STF 2790 AB (V381 Cep)
21h 19m 15.69s +58° 37' 24.6" P.A. 45.00 sep 4.6 mag 5.85,9.27 Sp M1I+B2+B3 dist. 591.72 pc (1930.19 l.y.)
| Coord 2000 |
21193+5837 |
|
Discov num |
STF2790 |
|
Comp |
AB |
|
Coord arcsec 2000 |
21 19 15.69 +58 37 24.6 |
|
| Date first |
1831 |
|
Date last |
2015 |
|
Obs |
31 |
|
| Pa first |
35 |
|
Pa last |
45 |
|
P.A. Now (θ) |
45° |
|
| Sep first |
3.0 |
|
Sep last |
4.586 |
|
Sep. Now (ρ) |
4.586" |
|
| Mag pri |
5.85 |
|
Mag sec |
9.27 |
|
delta mag (ΔM) |
3.42 |
|
Spectral class |
M1I+B2+B3 (red/blue-white) |
|
| Pri motion ra |
-004 |
|
Sec motion ra |
-004 |
|
| Pri motion dec |
-003 |
|
Sec motion dec |
-003 |
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
21193+5837 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
33318 |
21 19 16 +58 37 25 |
BAG 9 Aa,Ab |
2006 |
27 |
123 |
0.1 |
5.90 |
7.42 |
1.52 |
|
|
| Show |
V381 Cep |
33318 |
21 19 16 +58 37 25 |
STF 2790 AB |
2015 |
31 |
45 |
4.6 |
5.85 |
9.27 |
3.42 |
|
<=== |
| Show |
|
33318 |
21 19 16 +58 37 25 |
STF 2790 AC |
2015 |
4 |
183 |
15.8 |
5.85 |
15.20 |
9.35 |
|
|
| Show |
|
33318 |
21 19 16 +58 37 25 |
STF 2790 AD |
2015 |
11 |
352 |
74.8 |
5.85 |
10.07 |
4.22 |
|
|
Quintuple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Var name |
V381 Cep |
|
Constellation |
Cepheus |
|
SAO |
33318 |
|
HIP |
105259 |
|
| Tycho2 |
3965-00453-1 |
|
Gaia DR2 |
2191213153886504704 |
|
HD |
203338 |
|
HR |
8164 |
|
| GC |
29860 |
|
ADS |
14864 |
|
BD |
BD+58 2249 |
|
Distance |
591.72 |
|
| Distance ly |
1930.19 |
|
