17475-1806 HU 186 (HD 161643)

 
 
17h 47m 27.09s -18° 06' 25.6" P.A. 317.00 sep 1.0 mag 7.58,10.26 Sp A7V dist. 153.85 pc (501.86 l.y.)
 
 
Coord 2000 17475-1806 Discov num HU  186 Comp Coord arcsec 2000 17 47 27.09 -18 06 25.6
Date first 1900 Date last 1991 Obs 10
Pa first 340 Pa last 316.9 P.A. Now (θ) 316.9°
Sep first 1.0 Sep last 0.98 Sep. Now (ρ) 0.98"
Mag pri 7.58 Mag sec 10.26 delta mag (ΔM) 2.68 Spectral class A7V (white)
Pri motion ra +008 Sec motion ra +002
Pri motion dec -004 Sec motion dec -005
Notes
rPM=0.68
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 161643 Constellation Sagittarius SAO 160819 HIP 87061
Tycho2 6253-01604-1 Gaia DR2 4120575547751234432 HD 161643 GC 24140
BD BD-18 4645 Distance 153.85 Distance ly 501.86