20253-3052 TDT2257

 
 
20h 25m 20.20s -30 51' 43.8" P.A. 261 sep 0.5 mag 11.20,11.34
 
 
Coord 2000
20253-3052
Discov num
TDT2257
Comp
Coord arcsec 2000
20 25 20.20 -30 51 43.8
Date first
1991
Date last
1991
Obs
1
Pa first
261
Pa last
261
P.A. Now (θ)
261°
Sep first
0.5
Sep last
0.5
Sep. Now (ρ)
0.5"
Mag pri
11.20
Mag sec
11.34
delta mag (ΔM)
0.14
Spectral class
Pri motion ra
-050
Sec motion ra
-050
Pri motion dec
-021
Sec motion dec
-021
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
261.4
Precise sep
0.5
Constellation
Sagittarius
Tycho2
7455-00813-1
Gaia DR2
81225927296
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20253-3052 TDT2257 1991 1 261 0.5 11.20 11.34 202520.20-305143.8

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