20217+5717 TDT 2204
20h 21m 41.63s +57° 17' 26.1" P.A. 306.00 sep 2.1 mag 11.75,11.85
Coord 2000 |
20217+5717 |
|
Discov num |
TDT2204 |
|
Comp |
|
|
Coord arcsec 2000 |
20 21 41.63 +57 17 26.1 |
|
Date first |
1991 |
|
Date last |
2015 |
|
Obs |
2 |
|
Pa first |
308 |
|
Pa last |
305.5 |
|
P.A. Now (θ) |
305.5° |
|
Sep first |
2.3 |
|
Sep last |
2.136 |
|
Sep. Now (ρ) |
2.136" |
|
Mag pri |
11.75 |
|
Mag sec |
11.85 |
|
delta mag (ΔM) |
0.1 |
|
Spectral class |
|
|
Pri motion ra |
-003 |
|
Sec motion ra |
|
|
Pri motion dec |
-003 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cygnus |
|
Tycho2 |
3945-00202-1 |
|
Gaia DR2 |
2187841909492327424 |
|