17228-4537 EVS  30AC

 
 
17h 22m 46.47s -45 36' 51.3" P.A. 215 sep 18 mag 6.65,15.83 Sp F7/7Ib/II dist. 869.57 pc (2836.54 l.y.)
 
 
Coord 2000
17228-4537
Discov num
EVS  30
Comp
AC
Coord arcsec 2000
17 22 46.47 -45 36 51.3
Date first
1999
Date last
2011
Obs
2
Pa first
216
Pa last
215
P.A. Now (θ)
215°
Sep first
18.2
Sep last
18.0
Sep. Now (ρ)
18"
Mag pri
6.65
Mag sec
15.83
delta mag (ΔM)
9.18
Spectral class
F7/7Ib/II (yellow-white)
Pri motion ra
-003
Sec motion ra
Pri motion dec
-002
Sec motion dec
Notes
N U (See Notes, Proper motion indicates non-physical)
This double is not physical.
 
 
17228-4537 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show V636 Sco 227880 17228-4537 EVS 30 AB 2011 2011 1 268 14.4 6.65 16.49 9.84
Show 227880 17228-4537 EVS 30 AC 1999 2011 2 215 18.0 6.65 15.83 9.18 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Other name
V636 Sco
Var name
V636 Sco
Constellation
Scorpius
SAO
227880
HIP
85035
Tycho2
8341-00720-1
HD
156979
GC
23458
CD
CD-4511441
CP
CP-45 8503
Distance
869.57
Distance ly
2836.54
last precise pa
215
last precise sep
18
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17228-4537 EVS 30 AC 2011 2 215 18.0 6.65 15.83 F7/7Ib/II NU 172246.47-453651.3

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