20105+2920 HDS 2874 Ca,Cb
20h 10m 32.24s +29° 21' 49.7" P.A. 251.00 sep 0.4 mag 7.61,11.49 Sp B9 dist. 350.88 pc (1144.57 l.y.)
| Coord 2000 |
20105+2920 |
|
Discov num |
HDS2874 |
|
Comp |
Ca,Cb |
|
Coord arcsec 2000 |
20 10 32.24 +29 21 49.7 |
|
| Date first |
1991 |
|
Date last |
2012 |
|
Obs |
3 |
|
| Pa first |
275 |
|
Pa last |
251 |
|
P.A. Now (θ) |
251° |
|
| Sep first |
0.3 |
|
Sep last |
0.379 |
|
Sep. Now (ρ) |
0.379" |
|
| Mag pri |
7.61 |
|
Mag sec |
11.49 |
|
delta mag (ΔM) |
3.88 |
|
Spectral class |
B9 (blue-white) |
|
| Pri motion ra |
+004 |
|
Sec motion ra |
|
|
| Pri motion dec |
-003 |
|
Sec motion dec |
|
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
20105+2920 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
20 10 29 +29 20 05 |
BRT 46 AB |
2015 |
19 |
79 |
5.3 |
11.24 |
11.80 |
0.56 |
|
|
| Show |
|
88297 |
20 10 29 +29 20 05 |
MLB 477 AC |
2018 |
11 |
24 |
113.7 |
11.24 |
7.59 |
3.65 |
|
|
| Show |
|
88297 |
20 10 32 +29 21 50 |
HDS 2874 Ca,Cb |
2012 |
3 |
251 |
0.4 |
7.61 |
11.49 |
3.88 |
|
<=== |
Quadruple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Var name |
V398 Vul |
|
Constellation |
Vulpecula |
|
SAO |
88297 |
|
HIP |
99402 |
|
| Tycho2 |
2166-01101-1 |
|
Gaia DR2 |
2029491451768415360 |
|
HD |
191745 |
|
BD |
BD+28 3646 |
|
| Distance |
350.88 |
|
Distance ly |
1144.57 |
|
