17507-2917 B   359AB

 
 
17H 50M 41.09S -29 16' 44.2" P.A. 340 SEP 47 MAG 8.36,10.72 SP A2V
 
 
Coord 2000
17507-2917
Discov num
B   359
Comp
AB
Coord arcsec 2000
17 50 41.09 -29 16 44.2
Date first
1913
Date last
1999
Obs
9
Pa first
338
Pa last
340
P.A. Now (θ)
340°
Sep first
45.2
Sep last
47.0
Sep. Now (ρ)
47"
Mag pri
8.36
Mag sec
10.72
delta mag (ΔM)
2.36
Spectral class
A2V (white)
Pri motion ra
-010
Sec motion ra
-005
Pri motion dec
-025
Sec motion dec
+005
Notes
Nature of this double is uncertain.
 
 
17507-2917 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 185832 17507-2917 B 359 AB 1913 1999 9 340 47.0 8.36 10.72 2.36 <===
Show 17507-2917 B 359 BC 1927 1998 2 222 4.1 10.72 14.70 3.98
Show 17507-2917 B 359 BD 1927 1999 3 118 7.7 10.72 14.00 3.28
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Sagittarius
SAO
185832
Tycho2
6840-01069-1
HD
162120
last precise pa
339.9
last precise sep
46.957