20457+4951 TDT 2521
20h 45m 45.00s +49° 50' 44.0" P.A. 236.00 sep 0.3 mag 10.48,10.65 Sp G0
Coord 2000 |
20457+4951 |
|
Discov num |
TDT2521 |
|
Comp |
|
|
Coord arcsec 2000 |
20 45 45.00 +49 50 44.0 |
|
Date first |
1991 |
|
Date last |
2007 |
|
Obs |
2 |
|
Pa first |
238 |
|
Pa last |
235.8 |
|
P.A. Now (θ) |
235.8° |
|
Sep first |
0.4 |
|
Sep last |
0.327 |
|
Sep. Now (ρ) |
0.327" |
|
Mag pri |
10.48 |
|
Mag sec |
10.65 |
|
delta mag (ΔM) |
0.17 |
|
Spectral class |
G0 (yellow) |
|
Pri motion ra |
+032 |
|
Sec motion ra |
+032 |
|
Pri motion dec |
-004 |
|
Sec motion dec |
-004 |
|
Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cygnus |
|
Tycho2 |
3582-00525-1 |
|