20316+4113 ES 1679 AB
20h 31m 37.49s +41° 13' 20.9" P.A. 214.00 sep 4.0 mag 10.57,13.20 Sp O6IV+B0IV
| Coord 2000 |
20316+4113 |
|
Discov num |
ES 1679 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 31 37.49 +41 13 20.9 |
|
| Date first |
1917 |
|
Date last |
2015 |
|
Obs |
9 |
|
| Pa first |
217 |
|
Pa last |
214.4 |
|
P.A. Now (θ) |
214.4° |
|
| Sep first |
4.5 |
|
Sep last |
3.977 |
|
Sep. Now (ρ) |
3.977" |
|
| Mag pri |
10.57 |
|
Mag sec |
13.20 |
|
delta mag (ΔM) |
2.63 |
|
Spectral class |
O6IV+B0IV (blue/blue-white) |
|
| Pri motion ra |
-008 |
|
Sec motion ra |
|
|
| Pri motion dec |
-018 |
|
Sec motion dec |
|
|
| Notes |
V
(Proper motion indicates physical) |
|
This double is physical.
20316+4113 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
20 31 37 +41 13 21 |
ES 1679 AB |
2015 |
9 |
214 |
4.0 |
10.57 |
13.20 |
2.63 |
|
<=== |
| Show |
|
|
20 31 37 +41 13 21 |
CAN 75 AC |
2005 |
2 |
166 |
8.2 |
5.70 |
12.70 |
7.00 |
|
|
| Show |
|
|
20 31 37 +41 13 21 |
CAN 75 AD |
2015 |
7 |
269 |
11.8 |
5.70 |
12.40 |
6.70 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3157-00299-1 |
|
