18405+3017 HJ 1336 AB (HD 172716)

 
 
18h 40m 28.90s +30° 17' 21.5" P.A. 89.00 sep 16.9 mag 8.69,12.00 Sp A0
 
 
Coord 2000 18405+3017 Discov num HJ 1336 Comp AB Coord arcsec 2000 18 40 28.90 +30 17 21.5
Date first 1901 Date last 2015 Obs 8
Pa first 87 Pa last 89.1 P.A. Now (θ) 89.1°
Sep first 17.6 Sep last 16.876 Sep. Now (ρ) 16.876"
Mag pri 8.69 Mag sec 12.00 delta mag (ΔM) 3.31 Spectral class A0 (white)
Pri motion ra +002 Sec motion ra -008
Pri motion dec -004 Sec motion dec -009
Notes
rPM=0.928
This double is not physical.
 
 
18405+3017 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 172716 67236 18 40 29 +30 17 22 HJ 1336 AB 2015 8 89 16.9 8.69 12.00 3.31 <===
Show 67236 18 40 29 +30 17 22 HJ 1336 AC 2015 8 176 32.6 8.69 11.50 2.81
Show 67236 18 40 29 +30 17 22 HJ 1336 AD 2015 11 294 33.1 8.69 12.70 4.01
Show 67236 18 40 29 +30 17 22 HJ 1336 AE 2015 8 334 32.3 8.69 14.20 5.51
Quintuple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 172716 Constellation Lyra SAO 67236 Tycho2 2637-00449-1
Gaia DR2 4587912519745597312 HD 172716 GC 25555