20137+4323 BU 660 AB

 
 
20h 13m 42.81s +43 22' 44.4" P.A. 318.00 sep 8.7 mag 6.29,12.70 Sp K3III dist. 208.77 pc (681.01 l.y.)
 
 
Coord 2000 20137+4323 Discov num BU  660 Comp AB Coord arcsec 2000 20 13 42.81 +43 22 44.4
Date first 1878 Date last 2015 Obs 13
Pa first 318 Pa last 318.1 P.A. Now (θ) 318.1°
Sep first 9.4 Sep last 8.717 Sep. Now (ρ) 8.717"
Mag pri 6.29 Mag sec 12.70 delta mag (ΔM) 6.41 Spectral class K3III (yellow-orange)
Pri motion ra -002 Sec motion ra
Pri motion dec +003 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
20137+4323 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 49336 20 13 43 +43 22 44 BU 660 AB 2015 13 318 8.7 6.29 12.70 6.41 <===
Show 49336 20 13 43 +43 22 44 BU 660 AC 2015 11 190 58.2 6.29 12.92 6.63
Show 49336 20 13 43 +43 22 44 FOX 250 AD 2015 5 279 31.5 6.29 14.70 8.41
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus SAO 49336 HIP 99685 Tycho2 3163-01634-1
Gaia DR2 2080897296848794368 HD 192535 HR 7733 GC 28098
ADS 13555 BD BD+42 3642 FK5 3620 Distance 208.77
Distance ly 681.01