16571-1932 SHJ 240

 
 
16h 57m 04.00s -19 32' 23.5" P.A. 235 sep 4.6 mag 6.59,7.59 Sp B6V+B7V dist. 177.62 pc (579.4 l.y.)
 
 
Coord 2000
16571-1932
Discov num
SHJ 240
Comp
Coord arcsec 2000
16 57 04.00 -19 32 23.5
Date first
1833
Date last
2016
Obs
61
Pa first
231
Pa last
235
P.A. Now (θ)
235°
Sep first
5.8
Sep last
4.6
Sep. Now (ρ)
4.6"
Mag pri
6.59
Mag sec
7.59
delta mag (ΔM)
1
Spectral class
B6V+B7V (blue-white/blue-white)
Pri motion ra
-019
Sec motion ra
-019
Pri motion dec
-007
Sec motion dec
-007
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
235.2
Precise sep
4.624
Constellation
Ophiuchus
SAO
160180
HIP
82951
Tycho2
6227-02897-2
HD
152909
HR
6294
BD
BD-19 4471
Distance
177.62
Distance ly
579.4
last precise pa
235.2
last precise sep
4.624
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16571-1932 SHJ 240 2007 54 233 4.5 6.59 7.59 B6V+B7V D 165704.00-193223.5
16571-1932 SHJ 240 2010 54 232 4.4 6.59 7.59 B6V+B7V D 165704.00-193223.5
16571-1932 SHJ 240 2014 57 233 4.6 6.59 7.59 B6V B7V 165704.00-193223.5
16571-1932 SHJ 240 2015 59 233 4.5 6.59 7.59 B6V+B7V 165704.00-193223.5
16571-1932 SHJ 240 2016 61 235 4.6 6.59 7.59 B6V+B7V 165704.00-193223.5

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