21139+4438 TDT 2839
21h 13m 56.92s +44° 38' 00.0" P.A. 352.00 sep 1.2 mag 11.20,12.42
| Coord 2000 |
21139+4438 |
|
Discov num |
TDT2839 |
|
Comp |
|
|
Coord arcsec 2000 |
21 13 56.92 +44 38 00.0 |
|
| Date first |
1991 |
|
Date last |
2016 |
|
Obs |
3 |
|
| Pa first |
359 |
|
Pa last |
352.3 |
|
P.A. Now (θ) |
352.3° |
|
| Sep first |
1.2 |
|
Sep last |
1.203 |
|
Sep. Now (ρ) |
1.203" |
|
| Mag pri |
11.20 |
|
Mag sec |
12.42 |
|
delta mag (ΔM) |
1.22 |
|
Spectral class |
|
|
| Pri motion ra |
-009 |
|
Sec motion ra |
-009 |
|
| Pri motion dec |
-002 |
|
Sec motion dec |
-002 |
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3181-02967-1 |
|
Gaia DR2 |
1971755267245052544 |
|
