20007+3635 HDS 2851 Aa,Ab
20h 00m 44.81s +36° 35' 23.0" P.A. 171.00 sep 0.4 mag 6.76,9.75 Sp B6IV dist. 254.45 pc (830.02 l.y.)
| Coord 2000 |
20007+3635 |
|
Discov num |
HDS2851 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
20 00 44.81 +36 35 23.0 |
|
| Date first |
1991 |
|
Date last |
2011 |
|
Obs |
2 |
|
| Pa first |
332 |
|
Pa last |
171.2 |
|
P.A. Now (θ) |
171.2° |
|
| Sep first |
0.2 |
|
Sep last |
0.367 |
|
Sep. Now (ρ) |
0.367" |
|
| Mag pri |
6.76 |
|
Mag sec |
9.75 |
|
delta mag (ΔM) |
2.99 |
|
Spectral class |
B6IV (blue-white) |
|
| Pri motion ra |
+004 |
|
Sec motion ra |
|
|
| Pri motion dec |
-002 |
|
Sec motion dec |
|
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
20007+3635 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
69252 |
20 00 45 +36 35 23 |
HDS 2851 Aa,Ab |
2011 |
2 |
171 |
0.4 |
6.76 |
9.75 |
2.99 |
|
<=== |
| Show |
HD 189864 |
69252 |
20 00 45 +36 35 23 |
WEB 9 AB |
2016 |
22 |
202 |
71.6 |
6.69 |
8.97 |
2.28 |
|
|
| Show |
|
69252 |
20 00 45 +36 35 23 |
WEB 9 AC |
2004 |
12 |
220 |
82.1 |
6.69 |
9.84 |
3.15 |
|
|
| Show |
|
69251 |
20 00 43 +36 34 17 |
WEB 9 BC |
2018 |
21 |
278 |
26.3 |
8.97 |
9.84 |
0.87 |
|
|
| Show |
|
|
20 00 40 +36 34 20 |
WEB 9 CD |
2018 |
13 |
325 |
13.9 |
9.84 |
10.30 |
0.46 |
|
|
Quintuple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
SAO |
69252 |
|
HIP |
98510 |
|
Tycho2 |
2682-02072-1 |
|
| Gaia DR2 |
2060120375407807744 |
|
HD |
189864 |
|
BD |
BD+36 3816 |
|
Distance |
254.45 |
|
| Distance ly |
830.02 |
|
