20189+3817 A 1425 AB,C
20h 18m 51.71s +38° 16' 46.5" P.A. 310.00 sep 9.1 mag 6.65,13.20 Sp O9III dist. 1086.96 pc (3545.66 l.y.)
| Coord 2000 |
20189+3817 |
|
Discov num |
A 1425 |
|
Comp |
AB,C |
|
Coord arcsec 2000 |
20 18 51.71 +38 16 46.5 |
|
| Date first |
1906 |
|
Date last |
2015 |
|
Obs |
7 |
|
| Pa first |
311 |
|
Pa last |
310.2 |
|
P.A. Now (θ) |
310.2° |
|
| Sep first |
8.8 |
|
Sep last |
9.065 |
|
Sep. Now (ρ) |
9.065" |
|
| Mag pri |
6.65 |
|
Mag sec |
13.20 |
|
delta mag (ΔM) |
6.55 |
|
Spectral class |
O9III (blue) |
|
| Pri motion ra |
-010 |
|
Sec motion ra |
|
|
| Pri motion dec |
-013 |
|
Sec motion dec |
|
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
20189+3817 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
69815 |
20 18 52 +38 16 46 |
A 1425 AB |
2011 |
27 |
266 |
0.2 |
7.95 |
8.25 |
0.30 |
|
|
| Show |
|
69815 |
20 18 52 +38 16 46 |
A 1425 AB,C |
2015 |
7 |
310 |
9.1 |
6.65 |
13.20 |
6.55 |
|
<=== |
Triple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
SAO |
69815 |
|
HIP |
100146 |
|
Tycho2 |
3151-03449-1 |
|
| Gaia DR2 |
2061252769282480512 |
|
HD |
193443 |
|
BD |
BD+37 3879 |
|
Distance |
1086.96 |
|
| Distance ly |
3545.66 |
|
