21173+5837 BU 1140 AC
21h 17m 18.79s +58° 36' 41.3" P.A. 271.00 sep 68.2 mag 6.43,13.30 Sp B3III dist. 840.34 pc (2741.19 l.y.)
| Coord 2000 |
21173+5837 |
|
Discov num |
BU 1140 |
|
Comp |
AC |
|
Coord arcsec 2000 |
21 17 18.79 +58 36 41.3 |
|
| Date first |
1912 |
|
Date last |
2015 |
|
Obs |
5 |
|
| Pa first |
271 |
|
Pa last |
271.3 |
|
P.A. Now (θ) |
271.3° |
|
| Sep first |
69.9 |
|
Sep last |
68.196 |
|
Sep. Now (ρ) |
68.196" |
|
| Mag pri |
6.43 |
|
Mag sec |
13.30 |
|
delta mag (ΔM) |
6.87 |
|
Spectral class |
B3III (blue-white) |
|
| Pri motion ra |
-003 |
|
Sec motion ra |
-016 |
|
| Pri motion dec |
-003 |
|
Sec motion dec |
-012 |
|
| Notes |
N
(See Notes) |
|
rPM=0.791
Nature of this double is uncertain.
21173+5837 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
33288 |
21 17 19 +58 36 41 |
PET 2 Aa,Ab |
2007 |
1 |
271 |
0.1 |
6.43 |
|
|
|
|
| Show |
NSV13646 |
33288 |
21 17 19 +58 36 41 |
BU 1140 AB |
2015 |
10 |
274 |
4.2 |
6.43 |
12.00 |
5.57 |
|
|
| Show |
|
33288 |
21 17 19 +58 36 41 |
BU 1140 AC |
2015 |
5 |
271 |
68.2 |
6.43 |
13.30 |
6.87 |
|
<=== |
Quadruple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Var name |
NSV13646 |
|
Constellation |
Cepheus |
|
SAO |
33288 |
|
HIP |
105091 |
|
| Tycho2 |
3965-00595-1 |
|
Gaia DR2 |
2191133748536265216 |
|
HD |
203025 |
|
HR |
8153 |
|
| ADS |
14832 |
|
BD |
BD+57 2309 |
|
Distance |
840.34 |
|
Distance ly |
2741.19 |
|
