21042+3924 SEI 1389
21h 04m 09.78s +39° 23' 44.9" P.A. 61.00 sep 18.2 mag 11.00,11.00
| Coord 2000 |
21042+3924 |
|
Discov num |
SEI1389 |
|
Comp |
|
|
Coord arcsec 2000 |
21 04 09.78 +39 23 44.9 |
|
| Date first |
1895 |
|
Date last |
2015 |
|
Obs |
8 |
|
| Pa first |
79 |
|
Pa last |
61 |
|
P.A. Now (θ) |
61° |
|
| Sep first |
15.6 |
|
Sep last |
18.23 |
|
Sep. Now (ρ) |
18.23" |
|
| Mag pri |
11.00 |
|
Mag sec |
11.00 |
|
delta mag (ΔM) |
0 |
|
Spectral class |
|
|
| Pri motion ra |
-009 |
|
Sec motion ra |
+008 |
|
| Pri motion dec |
-004 |
|
Sec motion dec |
+002 |
|
| Notes |
|
|
rPM=1.83
This double is not physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Gaia DR2 |
1872309736220337920 |
|
