12539+7440 STF 1698

 
 
12h 54m 47.82s +74° 39' 06.1" P.A. 109.00 sep 10.1 mag 9.64,10.24 Sp A2
 
 
Coord 2000 12539+7440 Discov num STF1698 Comp Coord arcsec 2000 12 54 47.82 +74 39 06.1
Date first 1831 Date last 2016 Obs 33
Pa first 111 Pa last 108.5 P.A. Now (θ) 108.5°
Sep first 10.5 Sep last 10.116 Sep. Now (ρ) 10.116"
Mag pri 9.64 Mag sec 10.24 delta mag (ΔM) 0.6 Spectral class A2 (white)
Pri motion ra +023 Sec motion ra +023
Pri motion dec -013 Sec motion dec -011
Notes N T (See Notes, Parallax indicates physical)
rPM=0.076 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Draco Tycho2 4407-01792-1 Gaia DR2 1691762470861771520