21397+3934 TDT 3090
21h 39m 40.30s +39° 33' 38.1" P.A. 171.00 sep 0.7 mag 10.73,11.13
| Coord 2000 |
21397+3934 |
|
Discov num |
TDT3090 |
|
Comp |
|
|
Coord arcsec 2000 |
21 39 40.30 +39 33 38.1 |
|
| Date first |
1991 |
|
Date last |
2016 |
|
Obs |
3 |
|
| Pa first |
172 |
|
Pa last |
171.4 |
|
P.A. Now (θ) |
171.4° |
|
| Sep first |
0.6 |
|
Sep last |
0.724 |
|
Sep. Now (ρ) |
0.724" |
|
| Mag pri |
10.73 |
|
Mag sec |
11.13 |
|
delta mag (ΔM) |
0.4 |
|
Spectral class |
|
|
| Pri motion ra |
+028 |
|
Sec motion ra |
+028 |
|
| Pri motion dec |
+001 |
|
Sec motion dec |
+001 |
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3187-00196-1 |
|
Gaia DR2 |
1953964898523858432 |
|
