17265-1735 HU  171AB

 
 
17h 26m 31.65s -17 35' 13.7" P.A. 188 sep 1.7 mag 10.12,11.32 Sp A2V
 
 
Coord 2000
17265-1735
Discov num
HU  171
Comp
AB
Coord arcsec 2000
17 26 31.65 -17 35 13.7
Date first
1900
Date last
1991
Obs
5
Pa first
190
Pa last
188
P.A. Now (θ)
188°
Sep first
1.7
Sep last
1.7
Sep. Now (ρ)
1.7"
Mag pri
10.12
Mag sec
11.32
delta mag (ΔM)
1.2
Spectral class
A2V (white)
Pri motion ra
+002
Sec motion ra
+002
Pri motion dec
+004
Sec motion dec
+004
Notes
Nature of this double is uncertain.
 
 
17265-1735 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 17265-1735 HU 171 AB 1900 1991 5 188 1.7 10.12 11.32 1.20 <===
Show 17265-1735 HU 171 AC 1916 2000 6 210 6.6 10.12 12.30 2.18
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
187.5
Precise sep
1.657
Constellation
Ophiuchus
Tycho2
6238-02384-1
HD
157859
last precise pa
187.5
last precise sep
1.657
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17265-1735 HU 171 AB 1991 5 188 1.7 10.12 11.32 A2V 172631.65-173513.7

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