17178+2844 S 686 (HD 156680)

 
 
17h 17m 48.11s +28° 44' 00.4" P.A. 4.00 sep 50.0 mag 8.17,9.30 Sp A2 dist. 258.4 pc (842.9 l.y.)
 
 
Coord 2000 17178+2844 Discov num S   686 Comp Coord arcsec 2000 17 17 48.11 +28 44 00.4
Date first 1825 Date last 2015 Obs 27
Pa first 4 Pa last 4 P.A. Now (θ)
Sep first 55.0 Sep last 50.009 Sep. Now (ρ) 50.009"
Mag pri 8.17 Mag sec 9.30 delta mag (ΔM) 1.13 Spectral class A2 (white)
Pri motion ra -002 Sec motion ra +001
Pri motion dec -005 Sec motion dec -031
Notes N (See Notes)
rPM=0.844
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 156680 Constellation Hercules SAO 84986 HIP 84614
Tycho2 2073-00483-1 Gaia DR2 4575342215624789120 HD 156680 GC 23370
BD BD+28 2713 Distance 258.4 Distance ly 842.9