20010+3742 BU 1289 AB (HD 189901)
20h 00m 59.61s +37° 41' 56.1" P.A. 55.00 sep 0.7 mag 8.15,9.20 Sp B5 dist. 469.48 pc (1531.44 l.y.)
| Coord 2000 |
20010+3742 |
|
Discov num |
BU 1289 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 00 59.61 +37 41 56.1 |
|
| Date first |
1899 |
|
Date last |
2016 |
|
Obs |
23 |
|
| Pa first |
58 |
|
Pa last |
55.3 |
|
P.A. Now (θ) |
55.3° |
|
| Sep first |
0.8 |
|
Sep last |
0.71 |
|
Sep. Now (ρ) |
0.71" |
|
| Mag pri |
8.15 |
|
Mag sec |
9.20 |
|
delta mag (ΔM) |
1.05 |
|
Spectral class |
B5 (blue-white) |
|
| Pri motion ra |
+000 |
|
Sec motion ra |
|
|
| Pri motion dec |
-007 |
|
Sec motion dec |
|
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
20010+3742 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 189901 |
69258 |
20 00 60 +37 41 56 |
BU 1289 AB |
2016 |
23 |
55 |
0.7 |
8.15 |
9.20 |
1.05 |
|
<=== |
| Show |
|
69258 |
20 00 60 +37 41 56 |
BU 1289 AC |
2018 |
31 |
89 |
21.5 |
8.15 |
9.70 |
1.55 |
|
|
| Show |
|
69258 |
20 00 60 +37 41 56 |
FOX 246 AB,D |
2015 |
12 |
170 |
104.2 |
8.15 |
11.17 |
3.02 |
|
|
| Show |
|
69258 |
20 00 60 +37 41 56 |
WAL 125 AB,E |
2015 |
7 |
10 |
46.5 |
8.15 |
13.52 |
5.37 |
|
|
Quintuple system
6 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 189901 |
|
Constellation |
Cygnus |
|
SAO |
69258 |
|
HIP |
98528 |
|
| Tycho2 |
3150-02606-1 |
|
Gaia DR2 |
2060249185726240640 |
|
HD |
189901 |
|
BD |
BD+37 3723 |
|
| Distance |
469.48 |
|
Distance ly |
1531.44 |
|
