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
 
 
Precise pa
215
Precise sep
18
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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