20228+5325 STF 2681 CD

 
 
20h 22m 48.13s +53° 24' 26.5" P.A. 101.00 sep 23.3 mag 8.89,11.80 Sp A3 dist. 139.47 pc (454.95 l.y.)
 
 
Coord 2000 20228+5325 Discov num STF2681 Comp CD Coord arcsec 2000 20 22 48.13 +53 24 26.5
Date first 1830 Date last 2015 Obs 22
Pa first 103 Pa last 101.3 P.A. Now (θ) 101.3°
Sep first 22.0 Sep last 23.271 Sep. Now (ρ) 23.271"
Mag pri 8.89 Mag sec 11.80 delta mag (ΔM) 2.91 Spectral class A3 (white)
Pri motion ra +031 Sec motion ra +036
Pri motion dec +031 Sec motion dec +031
Notes
rPM=0.105 (< 0.3, Physical double)
This double is physical.
 
 
20228+5325 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 194354 32516 20 22 50 +53 25 03 STF 2681 AB 2015 25 39 6.8 7.97 10.61 2.64
Show 32516 20 22 50 +53 25 03 STF 2681 AC 2015 31 199 38.2 7.97 8.89 0.92
Show 32516 20 22 50 +53 25 03 STF 2681 AD 2015 15 166 42.0 7.97 11.80 3.83
Show 32515 20 22 48 +53 24 26 STF 2681 CD 2015 22 101 23.3 8.89 11.80 2.91 <===
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus SAO 32515 HIP 100505 Tycho2 3937-01761-1
Gaia DR2 2184841106046100224 HD 235207 BD BD+52 2693 Distance 139.47
Distance ly 454.95