20517+4721 TDT 2584
20h 51m 44.10s +47° 21' 24.5" P.A. 177.00 sep 2.4 mag 10.51,12.10
Coord 2000 |
20517+4721 |
|
Discov num |
TDT2584 |
|
Comp |
|
|
Coord arcsec 2000 |
20 51 44.10 +47 21 24.5 |
|
Date first |
1991 |
|
Date last |
2015 |
|
Obs |
2 |
|
Pa first |
177 |
|
Pa last |
176.9 |
|
P.A. Now (θ) |
176.9° |
|
Sep first |
2.3 |
|
Sep last |
2.376 |
|
Sep. Now (ρ) |
2.376" |
|
Mag pri |
10.51 |
|
Mag sec |
12.10 |
|
delta mag (ΔM) |
1.59 |
|
Spectral class |
|
|
Pri motion ra |
+002 |
|
Sec motion ra |
+002 |
|
Pri motion dec |
+007 |
|
Sec motion dec |
+007 |
|
Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cygnus |
|
Tycho2 |
3579-03693-1 |
|
Gaia DR2 |
2166885424028949760 |
|