20145+3640 RJJ 1 Aa,Ab
20h 14m 31.77s +36° 39' 39.6" P.A. 132.00 sep 0.0 mag 7.40,7.70 Sp WC7+O9V dist. 2083.33 pc (6795.82 l.y.)
Coord 2000 |
20145+3640 |
|
Discov num |
RJJ 1 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
20 14 31.77 +36 39 39.6 |
|
Date first |
2005 |
|
Date last |
2013 |
|
Obs |
2 |
|
Pa first |
295 |
|
Pa last |
131.6 |
|
P.A. Now (θ) |
131.6° |
|
Sep first |
0.0 |
|
Sep last |
0.004 |
|
Sep. Now (ρ) |
0.004" |
|
Mag pri |
7.40 |
|
Mag sec |
7.70 |
|
delta mag (ΔM) |
0.3 |
|
Spectral class |
WC7+O9V (Wolf-Rayet/blue) |
|
Pri motion ra |
-003 |
|
Sec motion ra |
|
|
Pri motion dec |
-007 |
|
Sec motion dec |
|
|
Notes |
N
K
(See Notes, K-band or other infrared magnitudes) |
|
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
Nature of this double is uncertain.
20145+3640 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
69677 |
20 14 32 +36 39 40 |
RJJ 1 Aa,Ab |
2013 |
2 |
132 |
0.0 |
7.40 |
7.70 |
0.30 |
|
<=== |
Show |
V1679 Cyg |
69677 |
20 14 32 +36 39 40 |
BLL 48 AB |
2015 |
21 |
117 |
113.6 |
7.97 |
10.06 |
2.09 |
|
|
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Var name |
V1679 Cyg |
|
Constellation |
Cygnus |
|
SAO |
69677 |
|
HIP |
99769 |
|
Tycho2 |
2683-03369-1 |
|
Gaia DR2 |
2060508777869902592 |
|
HD |
192641 |
|
BD |
BD+36 3956 |
|
Distance |
2083.33 |
|
Distance ly |
6795.82 |
|