20045-2342 BWL 54 AB

 
 
20h 04m 30.78s -23 42' 01.9" P.A. 261.00 sep 2.3 mag 7.70,17.70 Sp M4.5
 
 
Coord 2000 20045-2342 Discov num BWL  54 Comp AB Coord arcsec 2000 20 04 30.78 -23 42 01.9
Date first 2011 Date last 2012 Obs 2
Pa first 252 Pa last 260.7 P.A. Now (θ) 260.7°
Sep first 2.3 Sep last 2.34 Sep. Now (ρ) 2.34"
Mag pri 7.70 Mag sec 17.70 delta mag (ΔM) 10 Spectral class M4.5 (red)
Pri motion ra +123 Sec motion ra
Pri motion dec -339 Sec motion dec
Notes U K (Proper motion indicates non-physical, K-band or other infrared magnitudes)
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
This double is not physical.
 
 
20045-2342 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 04 31 -23 42 02 BWL 54 AB 2012 2 261 2.3 7.70 17.70 10.00 <===
Show 20 04 31 -23 42 02 BWL 54 AC 2012 2 0 6.4 7.70 18.10 10.40
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Sagittarius