20151+4118 A 387 AB (QR Vul)
20h 15m 08.10s +41° 17' 55.4" P.A. 151.00 sep 5.1 mag 7.90,11.48 Sp B9II-III dist. 1219.51 pc (3978.04 l.y.)
| Coord 2000 |
20151+4118 |
|
Discov num |
A 387 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 15 08.10 +41 17 55.4 |
|
| Date first |
1902 |
|
Date last |
2016 |
|
Obs |
12 |
|
| Pa first |
152 |
|
Pa last |
151 |
|
P.A. Now (θ) |
151° |
|
| Sep first |
4.9 |
|
Sep last |
5.08 |
|
Sep. Now (ρ) |
5.08" |
|
| Mag pri |
7.90 |
|
Mag sec |
11.48 |
|
delta mag (ΔM) |
3.58 |
|
Spectral class |
B9II-III (blue-white) |
|
| Pri motion ra |
+000 |
|
Sec motion ra |
+001 |
|
| Pri motion dec |
-002 |
|
Sec motion dec |
-005 |
|
| Notes |
N
(See Notes) |
|
rPM=0.62
Nature of this double is uncertain.
20151+4118 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
QR Vul |
49365 |
20 15 08 +41 17 55 |
A 387 AB |
2016 |
12 |
151 |
5.1 |
7.90 |
11.48 |
3.58 |
|
<=== |
| Show |
|
49365 |
20 15 08 +41 17 55 |
A 387 AC |
2016 |
12 |
222 |
21.6 |
7.90 |
10.75 |
2.85 |
|
|
| Show |
|
144211 |
20 15 07 +41 17 39 |
A 387 CD |
2016 |
8 |
19 |
9.0 |
10.75 |
13.00 |
2.25 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Var name |
QR Vul |
|
Constellation |
Cygnus |
|
SAO |
49365 |
|
HIP |
99813 |
|
| Tycho2 |
3159-00995-1 |
|
Gaia DR2 |
2062620699174311296 |
|
HD |
192803 |
|
HR |
7739 |
|
| GC |
28121 |
|
ADS |
13589 |
|
BD |
BD+40 4077 |
|
Distance |
1219.51 |
|
| Distance ly |
3978.04 |
|
