18405+3139 HO 437 AB

 
 
18h 40m 29.71s +31° 38' 36.4" P.A. 140.00 sep 0.3 mag 9.00,7.71 Sp A5 dist. 168.07 pc (548.24 l.y.)
 
 
Coord 2000 18405+3139 Discov num HO  437 Comp AB Coord arcsec 2000 18 40 29.71 +31 38 36.4
Date first 1892 Date last 2016 Obs 41
Pa first 116 Pa last 140.4 P.A. Now (θ) 140.4°
Sep first 0.4 Sep last 0.27 Sep. Now (ρ) 0.27"
Mag pri 9.00 Mag sec 7.71 delta mag (ΔM) 1.29 Spectral class A5 (white)
Pri motion ra -006 Sec motion ra -006
Pri motion dec +002 Sec motion dec +002
Notes
Nature of this double is uncertain.
 
 
18405+3139 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 67238 18 40 30 +31 38 36 HO 437 AB 2016 41 140 0.3 9.00 7.71 1.29 <===
Show 67238 18 40 30 +31 38 36 HO 437 AC 2014 8 272 39.9 9.00 11.30 2.30
Show 67238 18 40 30 +31 38 36 HO 437 AE 2006 5 288 22.1 9.00 15.20 6.20
Show 18 40 27 +31 38 37 HO 437 CD 2015 16 347 4.5 11.30 11.70 0.40
Quintuple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Lyra SAO 67238 HIP 91579 Tycho2 2637-01136-1
HD 172729 BD BD+31 3327 Distance 168.07 Distance ly 548.24