20509+0101 TDT 2577 Aa,Ab

 
 
20h 50m 54.67s +01° 01' 11.9" P.A. 104.00 sep 0.5 mag 10.56,10.57
 
 
Coord 2000 20509+0101 Discov num TDT2577 Comp Aa,Ab Coord arcsec 2000 20 50 54.67 +01 01 11.9
Date first 1991 Date last 1991 Obs 1
Pa first 104 Pa last 103.9 P.A. Now (θ) 103.9°
Sep first 0.5 Sep last 0.46 Sep. Now (ρ) 0.46"
Mag pri 10.56 Mag sec 10.57 delta mag (ΔM) 0.01 Spectral class
Pri motion ra -020 Sec motion ra -017
Pri motion dec -156 Sec motion dec -156
Notes
rPM=0.019 (< 0.3, Physical double)
This double is physical.
 
 
20509+0101 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 50 55 +01 01 12 TDT 2577 Aa,Ab 1991 1 104 0.5 10.56 10.57 0.01 <===
Show 20 50 55 +01 01 12 RST 5472 AB 2016 5 77 3.7 9.91 12.60 2.69
Triple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Aquarius Tycho2 0512-01429-1 Gaia DR2 4228484127131881344