21287+4952 STF 2800

 
 
21h 28m 43.09s +49° 52' 06.6" P.A. 254.00 sep 9.1 mag 9.50,10.41 Sp A5 dist. 444.44 pc (1449.76 l.y.)
 
 
Coord 2000 21287+4952 Discov num STF2800 Comp Coord arcsec 2000 21 28 43.09 +49 52 06.6
Date first 1828 Date last 2019 Obs 20
Pa first 261 Pa last 253.5 P.A. Now (θ) 253.5°
Sep first 9.0 Sep last 9.133 Sep. Now (ρ) 9.133"
Mag pri 9.50 Mag sec 10.41 delta mag (ΔM) 0.91 Spectral class A5 (white)
Pri motion ra +009 Sec motion ra +012
Pri motion dec +006 Sec motion dec +007
Notes
rPM=0.228 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus HIP 106038 Tycho2 3598-01851-1 Gaia DR2 2170975852112895616
BD BD+49 3533 Distance 444.44 Distance ly 1449.76