21401+2928 BRT 57
21h 39m 50.92s +29° 29' 22.1" P.A. 137.00 sep 5.0 mag 10.20,10.30
Coord 2000 |
21401+2928 |
|
Discov num |
BRT 57 |
|
Comp |
|
|
Coord arcsec 2000 |
21 39 50.92 +29 29 22.1 |
|
Date first |
1894 |
|
Date last |
2016 |
|
Obs |
19 |
|
Pa first |
134 |
|
Pa last |
136.5 |
|
P.A. Now (θ) |
136.5° |
|
Sep first |
4.2 |
|
Sep last |
5.004 |
|
Sep. Now (ρ) |
5.004" |
|
Mag pri |
10.20 |
|
Mag sec |
10.30 |
|
delta mag (ΔM) |
0.1 |
|
Spectral class |
|
|
Pri motion ra |
-021 |
|
Sec motion ra |
+028 |
|
Pri motion dec |
+046 |
|
Sec motion dec |
-009 |
|
Notes |
|
|
rPM=1.457
This double is not physical.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cygnus |
|
Gaia DR2 |
1849399212420096768 |
|