16551-3124 HDO 309

 
 
16h 55m 08.69s -31 24' 08.9" P.A. 129 sep 3.8 mag 6.73,10.30 Sp A0/1V dist. 166.67 pc (543.68 l.y.)
 
 
Coord 2000
16551-3124
Discov num
HDO 309
Comp
Coord arcsec 2000
16 55 08.69 -31 24 08.9
Date first
1897
Date last
1964
Obs
9
Pa first
129
Pa last
129
P.A. Now (θ)
129°
Sep first
3.3
Sep last
3.8
Sep. Now (ρ)
3.8"
Mag pri
6.73
Mag sec
10.30
delta mag (ΔM)
3.57
Spectral class
A0/1V (white)
Pri motion ra
-006
Sec motion ra
Pri motion dec
-051
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
128.7
Precise sep
3.8
Constellation
Scorpius
SAO
208187
HIP
82792
Tycho2
7359-02209-1
HD
152521
CD
CD-3113348
CP
CP-31 4511
Distance
166.67
Distance ly
543.68
last precise pa
128.7
last precise sep
3.8
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16551-3124 HDO 309 1964 9 129 3.8 6.80 10.30 A0/1V 165508.69-312408.9

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