21509+3918 MLB 788
21h 50m 55.55s +39° 18' 20.4" P.A. 52.00 sep 4.9 mag 12.00,11.60
| Coord 2000 |
21509+3918 |
|
Discov num |
MLB 788 |
|
Comp |
|
|
Coord arcsec 2000 |
21 50 55.55 +39 18 20.4 |
|
| Date first |
1932 |
|
Date last |
2016 |
|
Obs |
10 |
|
| Pa first |
54 |
|
Pa last |
51.6 |
|
P.A. Now (θ) |
51.6° |
|
| Sep first |
4.2 |
|
Sep last |
4.907 |
|
Sep. Now (ρ) |
4.907" |
|
| Mag pri |
12.00 |
|
Mag sec |
11.60 |
|
delta mag (ΔM) |
0.4 |
|
Spectral class |
|
|
| Pri motion ra |
-020 |
|
Sec motion ra |
+024 |
|
| Pri motion dec |
-025 |
|
Sec motion dec |
-008 |
|
| Notes |
|
|
rPM=1.473
This double is not physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Gaia DR2 |
1953326146694532096 |
|
