10257-2659 B   198

 
 
10h 25m 41.48s -26 59' 22.3" P.A. 142 sep 0.2 mag 10.50,10.70 Sp F7V
 
 
Coord 2000
10257-2659
Discov num
B   198
Comp
Coord arcsec 2000
10 25 41.48 -26 59 22.3
Date first
1927
Date last
1990
Obs
3
Pa first
129
Pa last
142
P.A. Now (θ)
142°
Sep first
0.3
Sep last
0.2
Sep. Now (ρ)
0.2"
Mag pri
10.50
Mag sec
10.70
delta mag (ΔM)
0.2
Spectral class
F7V (yellow-white)
Pri motion ra
-111
Sec motion ra
Pri motion dec
+021
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
142.3
Precise sep
0.22
Constellation
Hydra
SAO
178805
Tycho2
6627-00614-1
HD
90408
last precise pa
142.3
last precise sep
0.22
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
10257-2659 B 198 1990 3 142 0.2 10.50 10.70 F7V 102541.48-265922.3

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