20121+3938 SEI 997
20h 12m 03.92s +39° 37' 42.2" P.A. 146.00 sep 10.3 mag 11.20,11.50
| Coord 2000 |
20121+3938 |
|
Discov num |
SEI 997 |
|
Comp |
|
|
Coord arcsec 2000 |
20 12 03.92 +39 37 42.2 |
|
| Date first |
1892 |
|
Date last |
2015 |
|
Obs |
12 |
|
| Pa first |
148 |
|
Pa last |
146.4 |
|
P.A. Now (θ) |
146.4° |
|
| Sep first |
10.4 |
|
Sep last |
10.348 |
|
Sep. Now (ρ) |
10.348" |
|
| Mag pri |
11.20 |
|
Mag sec |
11.50 |
|
delta mag (ΔM) |
0.3 |
|
Spectral class |
|
|
| Pri motion ra |
-002 |
|
Sec motion ra |
-002 |
|
| Pri motion dec |
-002 |
|
Sec motion dec |
-003 |
|
| Notes |
|
|
rPM=0.277 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Gaia DR2 |
2062372140832179968 |
|
