20339+4642 HDS 2940 Aa,Ab

 
 
20h 33m 54.84s +46 41' 37.9" P.A. 46.00 sep 0.3 mag 5.76,9.48 Sp B9sp... dist. 132.28 pc (431.5 l.y.)
 
 
Coord 2000 20339+4642 Discov num HDS2940 Comp Aa,Ab Coord arcsec 2000 20 33 54.84 +46 41 37.9
Date first 1991 Date last 2009 Obs 8
Pa first 56 Pa last 45.6 P.A. Now (θ) 45.6°
Sep first 0.3 Sep last 0.279 Sep. Now (ρ) 0.279"
Mag pri 5.76 Mag sec 9.48 delta mag (ΔM) 3.72 Spectral class B9sp... (blue-white)
Pri motion ra +010 Sec motion ra
Pri motion dec +002 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
20339+4642 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 49804 20 33 55 +46 41 38 HDS 2940 Aa,Ab 2009 8 46 0.3 5.76 9.48 3.72 <===
Show V2015 Cyg 49804 20 33 55 +46 41 38 BU 1489 AB 2012 13 16 116.5 5.75 9.35 3.60
Triple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name V2015 Cyg Constellation Cygnus SAO 49804 HIP 101475
Tycho2 3573-01361-1 Gaia DR2 2071438198315555584 HD 196178 HR 7870
BD BD+46 2977 Distance 132.28 Distance ly 431.5