16514-3944 B  2821

 
 
16h 51m 24.81s -39 43' 59.6" P.A. 40 sep 5.5 mag 8.92,12.10 Sp O
 
 
Coord 2000
16514-3944
Discov num
B  2821
Comp
Coord arcsec 2000
16 51 24.81 -39 43 59.6
Date first
1930
Date last
2000
Obs
3
Pa first
30
Pa last
40
P.A. Now (θ)
40°
Sep first
7.0
Sep last
5.5
Sep. Now (ρ)
5.5"
Mag pri
8.92
Mag sec
12.10
delta mag (ΔM)
3.18
Spectral class
O (blue)
Pri motion ra
-029
Sec motion ra
Pri motion dec
-009
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
40
Precise sep
5.48
Constellation
Scorpius
Tycho2
7872-00832-1
HD
322089
last precise pa
40
last precise sep
5.48
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16514-3944 B 2821 1987 2 39 5.4 8.92 12.10 O 165124.81-394359.6
16514-3944 B 2821 2000 3 40 5.5 8.92 12.10 O 165124.81-394359.6

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