16090-1900 HNK 6 Aa,Ab

 
 
16h 09m 02.60s -18° 59' 44.0" P.A. 253.00 sep 0.2 mag 7.90,10.50 Sp A0V dist. 122.7 pc (400.25 l.y.)
 
 
Coord 2000 16090-1900 Discov num HNK   6 Comp Aa,Ab Coord arcsec 2000 16 09 02.60 -18 59 44.0
Date first 2010 Date last 2019 Obs 3
Pa first 242 Pa last 252.7 P.A. Now (θ) 252.7°
Sep first 0.2 Sep last 0.174 Sep. Now (ρ) 0.174"
Mag pri 7.90 Mag sec 10.50 delta mag (ΔM) 2.6 Spectral class A0V (white)
Pri motion ra -007 Sec motion ra
Pri motion dec -023 Sec motion dec
Notes N W (See Notes, )
Nature of this double is uncertain.
 
 
16090-1900 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 159731 16 09 03 -18 59 44 HNK 6 Aa,Ab 2019 3 253 0.2 7.90 10.50 2.60 <===
Show HD 144925 159731 16 09 03 -18 59 44 KOU 54 AB 2019 7 100 1.0 7.13 10.38 3.25
Show 159731 16 09 03 -18 59 44 LAF 120 AC 2008 1 134 6.0 7.01 16.40 9.39
Quadruple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Scorpius SAO 159731 HIP 79124 Tycho2 6209-01305-1
Gaia DR2 6248783275121192704 HD 144925 BD BD-18 4240 Distance 122.7
Distance ly 400.25