20233+1515 BPM 2138 AB

 
 
20h 23m 16.27s +15° 14' 47.3" P.A. 179.00 sep 54.0 mag 12.57,14.84
 
 
Coord 2000 20233+1515 Discov num BPM2138 Comp AB Coord arcsec 2000 20 23 16.27 +15 14 47.3
Date first 1970 Date last 2015 Obs 8
Pa first 179 Pa last 178.7 P.A. Now (θ) 178.7°
Sep first 53.8 Sep last 54.001 Sep. Now (ρ) 54.001"
Mag pri 12.57 Mag sec 14.84 delta mag (ΔM) 2.27 Spectral class
Pri motion ra -003 Sec motion ra +004
Pri motion dec -004 Sec motion dec -008
Notes N V (See Notes, Proper motion indicates physical)
rPM=0.901
This double is physical.
 
 
20233+1515 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 23 16 +15 14 47 BPM 2138 AB 2015 8 179 54.0 12.57 14.84 2.27 <===
Show 20 23 16 +15 14 47 BPM 2139 AC 2015 8 359 111.7 12.57 15.44 2.87
Show 20 23 16 +15 13 53 BPM 2140 BD 2015 8 306 82.6 14.84 14.25 0.59
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Delphinus Gaia DR2 1805667030781232256