21129+4033 ES 256
21h 12m 51.05s +40° 33' 32.4" P.A. 281.00 sep 4.5 mag 11.30,11.50
| Coord 2000 |
21129+4033 |
|
Discov num |
ES 256 |
|
Comp |
|
|
Coord arcsec 2000 |
21 12 51.05 +40 33 32.4 |
|
| Date first |
1895 |
|
Date last |
2015 |
|
Obs |
7 |
|
| Pa first |
280 |
|
Pa last |
281.4 |
|
P.A. Now (θ) |
281.4° |
|
| Sep first |
4.3 |
|
Sep last |
4.51 |
|
Sep. Now (ρ) |
4.51" |
|
| Mag pri |
11.30 |
|
Mag sec |
11.50 |
|
delta mag (ΔM) |
0.2 |
|
Spectral class |
|
|
| Pri motion ra |
+024 |
|
Sec motion ra |
-038 |
|
| Pri motion dec |
-008 |
|
Sec motion dec |
+014 |
|
| Notes |
|
|
rPM=1.625
This double is not physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Gaia DR2 |
1968318198201852672 |
|
