21073+3857 MLB 889
21h 07m 18.20s +38° 57' 18.4" P.A. 5.00 sep 7.0 mag 10.20,11.50
Coord 2000 |
21073+3857 |
|
Discov num |
MLB 889 |
|
Comp |
|
|
Coord arcsec 2000 |
21 07 18.20 +38 57 18.4 |
|
Date first |
1933 |
|
Date last |
2022 |
|
Obs |
10 |
|
Pa first |
1 |
|
Pa last |
5.1 |
|
P.A. Now (θ) |
5.1° |
|
Sep first |
5.8 |
|
Sep last |
7.01 |
|
Sep. Now (ρ) |
7.01" |
|
Mag pri |
10.20 |
|
Mag sec |
11.50 |
|
delta mag (ΔM) |
1.3 |
|
Spectral class |
|
|
Pri motion ra |
-003 |
|
Sec motion ra |
|
|
Pri motion dec |
-003 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cygnus |
|
Gaia DR2 |
1872053378212066816 |
|