18462+4408 HDS 2662 AB (HD 173978)

 
 
18h 46m 12.21s +44° 08' 08.3" P.A. 257.00 sep 0.8 mag 8.19,11.28 Sp A5 dist. 292.4 pc (953.81 l.y.)
 
 
Coord 2000 18462+4408 Discov num HDS2662 Comp AB Coord arcsec 2000 18 46 12.21 +44 08 08.3
Date first 1991 Date last 2012 Obs 3
Pa first 259 Pa last 256.6 P.A. Now (θ) 256.6°
Sep first 0.7 Sep last 0.77 Sep. Now (ρ) 0.77"
Mag pri 8.19 Mag sec 11.28 delta mag (ΔM) 3.09 Spectral class A5 (white)
Pri motion ra +001 Sec motion ra
Pri motion dec +012 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
18462+4408 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 173978 47781 18 46 12 +44 08 08 HDS 2662 AB 2012 3 257 0.8 8.19 11.28 3.09 <===
Show 47781 18 46 12 +44 08 08 ARY 54 AC 2015 17 47 76.0 8.11 8.90 0.79
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 173978 Constellation Lyra SAO 47781 HIP 92096
Tycho2 3130-01670-1 Gaia DR2 2117303428207967488 HD 173978 BD BD+43 3066
Distance 292.4 Distance ly 953.81