20457+4951 TDT2521

 
 
20h 45m 45.00s +49 50' 44.0" P.A. 236 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
236
P.A. Now (θ)
236°
Sep first
0.4
Sep last
0.3
Sep. Now (ρ)
0.3"
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
last precise pa
235.8
last precise sep
0.327
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20457+4951 TDT2521 1991 1 238 0.4 10.48 10.65 204545.00+495044.0
20457+4951 TDT2521 2007 2 236 0.3 10.48 10.65 204545.00+495044.0

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