20554+3910 ES 1984
20h 55m 26.45s +39° 10' 49.3" P.A. 115.00 sep 3.5 mag 11.90,12.40
| Coord 2000 |
20554+3910 |
|
Discov num |
ES 1984 |
|
Comp |
|
|
Coord arcsec 2000 |
20 55 26.45 +39 10 49.3 |
|
| Date first |
1922 |
|
Date last |
2016 |
|
Obs |
9 |
|
| Pa first |
114 |
|
Pa last |
115.3 |
|
P.A. Now (θ) |
115.3° |
|
| Sep first |
3.3 |
|
Sep last |
3.48 |
|
Sep. Now (ρ) |
3.48" |
|
| Mag pri |
11.90 |
|
Mag sec |
12.40 |
|
delta mag (ΔM) |
0.5 |
|
Spectral class |
|
|
| Pri motion ra |
-019 |
|
Sec motion ra |
-018 |
|
| Pri motion dec |
-005 |
|
Sec motion dec |
-005 |
|
| Notes |
V
(Proper motion indicates physical) |
|
rPM=0.051 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Gaia DR2 |
1872833339971471360 |
|
