17301-3343 HO  646AC

 
 
17h 30m 05.64s -33 42' 58.9" P.A. 314 sep 14.1 mag 6.74,11.30 Sp B0.5Ib dist. 12500 pc (40775 l.y.)
 
 
Coord 2000
17301-3343
Discov num
HO  646
Comp
AC
Coord arcsec 2000
17 30 05.64 -33 42 58.9
Date first
1893
Date last
2016
Obs
11
Pa first
315
Pa last
314
P.A. Now (θ)
314°
Sep first
15.0
Sep last
14.1
Sep. Now (ρ)
14.1"
Mag pri
6.74
Mag sec
11.30
delta mag (ΔM)
4.56
Spectral class
B0.5Ib (blue-white)
Pri motion ra
+001
Sec motion ra
-001
Pri motion dec
-003
Sec motion dec
-002
Notes
N (See Notes)
rPM=0.707
Nature of this double is uncertain.
 
 
17301-3343 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 208881 17301-3343 HWE 39 AB 1876 2016 17 322 4.3 6.74 9.53 2.79
Show 208881 17301-3343 HO 646 AC 1893 2016 11 314 14.1 6.74 11.30 4.56 <===
Show 208881 17301-3343 HO 646 AD 1881 2016 15 28 59.0 6.74 9.41 2.67
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
313.9
Precise sep
14.09
Constellation
Scorpius
SAO
208881
HIP
85641
Tycho2
7379-00629-1
HD
158320
CD
CD-3312117
Distance
12500
Distance ly
40775
last precise pa
313.9
last precise sep
14.09
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17301-3343 HO 646 AC 1998 9 313 14.6 6.74 11.30 B0.5Ib D 173005.64-334258.9
17301-3343 HO 646 AC 1999 10 313 14.5 6.74 11.30 B0.5Ib N D 173005.64-334258.9
17301-3343 HO 646 AC 2016 11 314 14.1 6.74 11.30 B0.5Ib N 173005.64-334258.9

If you need more information about this double, apply for a data request form to the WDS.