20222+4015 BU 665 A,BC (Sadr)
20h 22m 13.70s +40° 15' 24.0" P.A. 197.00 sep 147.1 mag 2.27,11.04 Sp F8Ib dist. 561.8 pc (1832.59 l.y.)
| Coord 2000 |
20222+4015 |
|
Discov num |
BU 665 |
|
Comp |
A,BC |
|
Coord arcsec 2000 |
20 22 13.70 +40 15 24.0 |
|
| Date first |
1877 |
|
Date last |
2010 |
|
Obs |
11 |
|
| Pa first |
197 |
|
Pa last |
197.1 |
|
P.A. Now (θ) |
197.1° |
|
| Sep first |
140.4 |
|
Sep last |
147.08 |
|
Sep. Now (ρ) |
147.08" |
|
| Mag pri |
2.27 |
|
Mag sec |
11.04 |
|
delta mag (ΔM) |
8.77 |
|
Spectral class |
F8Ib (yellow-white) |
|
| Pri motion ra |
+002 |
|
Sec motion ra |
-013 |
|
| Pri motion dec |
-001 |
|
Sec motion dec |
-017 |
|
| Notes |
N
U
(See Notes, Proper motion indicates non-physical) |
|
rPM=1.025
This double is not physical.
20222+4015 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
Sadr |
49528 |
20 22 14 +40 15 24 |
BU 665 A,BC |
2010 |
11 |
197 |
147.1 |
2.27 |
11.04 |
8.77 |
|
<=== |
| Show |
|
|
20 22 10 +40 13 07 |
BU 665 BC |
2016 |
11 |
302 |
1.9 |
10.00 |
11.00 |
1.00 |
|
|
| Show |
|
|
20 22 10 +40 13 07 |
BU 665 BC,D |
2002 |
3 |
131 |
41.0 |
11.04 |
13.58 |
2.54 |
|
|
Quadruple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Common name |
Sadr |
|
Var name |
NSV13048 Cyg |
|
Constellation |
Cygnus |
|
SAO |
49528 |
|
| HIP |
100453 |
|
Tycho2 |
3156-02223-1 |
|
Gaia DR2 |
2067518817313277952 |
|
HD |
194093 |
|
| HR |
7796 |
|
GC |
28338 |
|
ADS |
13765 |
|
BD |
BD+39 4159 |
|
| Bayer |
Gamma Cygni |
|
Bayer name |
Gam Cyg |
|
Flamsteed |
37 Cygni |
|
Flamsteed name |
37 Cyg |
|
| FK5 |
765 |
|
Distance |
561.8 |
|
Distance ly |
1832.59 |
|
Bayer greek |
γ Cyg |
|
| Meaning |
Nepalese proposal; the Nepali name for the world's highest peak (Mount Everest). |
|
