20301+4857 BU 669 AB
20h 30m 03.53s +48° 57' 05.6" P.A. 336.00 sep 15.0 mag 4.95,12.90 Sp B2.5IV dist. 278.55 pc (908.63 l.y.)
| Coord 2000 |
20301+4857 |
|
Discov num |
BU 669 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 30 03.53 +48 57 05.6 |
|
| Date first |
1878 |
|
Date last |
2013 |
|
Obs |
10 |
|
| Pa first |
343 |
|
Pa last |
335.9 |
|
P.A. Now (θ) |
335.9° |
|
| Sep first |
17.3 |
|
Sep last |
15.03 |
|
Sep. Now (ρ) |
15.03" |
|
| Mag pri |
4.95 |
|
Mag sec |
12.90 |
|
delta mag (ΔM) |
7.95 |
|
Spectral class |
B2.5IV (blue-white) |
|
| Pri motion ra |
+011 |
|
Sec motion ra |
|
|
| Pri motion dec |
+007 |
|
Sec motion dec |
|
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
20301+4857 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
49712 |
20 30 04 +48 57 06 |
BU 669 AB |
2013 |
10 |
336 |
15.0 |
4.95 |
12.90 |
7.95 |
|
<=== |
| Show |
Ome1 Cyg |
49712 |
20 30 04 +48 57 06 |
BU 669 AC |
2013 |
11 |
89 |
55.8 |
4.92 |
11.77 |
6.85 |
|
|
| Show |
|
49712 |
20 30 04 +48 57 06 |
GUI 32 AD |
2015 |
7 |
44 |
131.1 |
4.92 |
11.99 |
7.07 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Var name |
V2014 Cyg |
|
Constellation |
Cygnus |
|
SAO |
49712 |
|
HIP |
101138 |
|
| Tycho2 |
3581-02031-1 |
|
Gaia DR2 |
2083947891862120192 |
|
HD |
195556 |
|
HR |
7844 |
|
| GC |
28537 |
|
ADS |
13932 |
|
BD |
BD+48 3142 |
|
Bayer |
Omega 1 Cygni |
|
| Bayer name |
Ome1 Cyg |
|
Flamsteed |
45 Cygni |
|
Flamsteed name |
45 Cyg |
|
FK5 |
3641 |
|
| Distance |
278.55 |
|
Distance ly |
908.63 |
|
Bayer greek |
ω1 Cyg |
|
