10074-1943 BU  218

 
 
10h 07m 22.22s -19 42' 31.2" P.A. 146 sep 0.4 mag 8.16,8.21 Sp A2IV dist. 207.9 pc (678.17 l.y.)
 
 
Coord 2000
10074-1943
Discov num
BU  218
Comp
Coord arcsec 2000
10 07 22.22 -19 42 31.2
Date first
1875
Date last
2017
Obs
41
Pa first
123
Pa last
146
P.A. Now (θ)
146°
Sep first
1.0
Sep last
0.4
Sep. Now (ρ)
0.4"
Mag pri
8.16
Mag sec
8.21
delta mag (ΔM)
0.05
Spectral class
A2IV (white)
Pri motion ra
-034
Sec motion ra
-034
Pri motion dec
+018
Sec motion dec
+018
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
146.4
Precise sep
0.435
Constellation
Hydra
SAO
155744
HIP
49587
Tycho2
6054-00753-1
HD
87840
BD
BD-19 2918
Distance
207.9
Distance ly
678.17
last precise pa
146.4
last precise sep
0.435
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
10074-1943 BU 218 1998 40 138 0.5 8.16 8.21 A2IV D 100722.22-194231.2
10074-1943 BU 218 2017 41 146 0.4 8.16 8.21 A2IV 100722.22-194231.2

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