20169+5717 TDT 2139
20h 16m 52.09s +57° 16' 53.9" P.A. 101.00 sep 3.2 mag 11.75,12.66
| Coord 2000 |
20169+5717 |
|
Discov num |
TDT2139 |
|
Comp |
|
|
Coord arcsec 2000 |
20 16 52.09 +57 16 53.9 |
|
| Date first |
1991 |
|
Date last |
2016 |
|
Obs |
5 |
|
| Pa first |
100 |
|
Pa last |
101.1 |
|
P.A. Now (θ) |
101.1° |
|
| Sep first |
3.2 |
|
Sep last |
3.21 |
|
Sep. Now (ρ) |
3.21" |
|
| Mag pri |
11.75 |
|
Mag sec |
12.66 |
|
delta mag (ΔM) |
0.91 |
|
Spectral class |
|
|
| Pri motion ra |
-011 |
|
Sec motion ra |
-011 |
|
| Pri motion dec |
+005 |
|
Sec motion dec |
-001 |
|
| Notes |
|
|
rPM=0.497
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3945-00862-1 |
|
Gaia DR2 |
2187947943646016896 |
|
