21289+3941 MLB 986
21h 28m 52.87s +39° 41' 33.3" P.A. 58.00 sep 4.5 mag 12.00,12.20
| Coord 2000 |
21289+3941 |
|
Discov num |
MLB 986 |
|
Comp |
|
|
Coord arcsec 2000 |
21 28 52.87 +39 41 33.3 |
|
| Date first |
1935 |
|
Date last |
2015 |
|
Obs |
4 |
|
| Pa first |
63 |
|
Pa last |
57.7 |
|
P.A. Now (θ) |
57.7° |
|
| Sep first |
3.0 |
|
Sep last |
4.498 |
|
Sep. Now (ρ) |
4.498" |
|
| Mag pri |
12.00 |
|
Mag sec |
12.20 |
|
delta mag (ΔM) |
0.2 |
|
Spectral class |
|
|
| Pri motion ra |
-029 |
|
Sec motion ra |
+038 |
|
| Pri motion dec |
-018 |
|
Sec motion dec |
+025 |
|
| Notes |
|
|
rPM=1.75
This double is not physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Gaia DR2 |
1964669159624649984 |
|
