21028+3534 BTG 6 BD

 
 
21h 02m 45.85s +35° 33' 36.0" P.A. 274.00 sep 15.9 mag 11.50,14.20
 
 
Coord 2000 21028+3534 Discov num BTG   6 Comp BD Coord arcsec 2000 21 02 45.85 +35 33 36.0
Date first 1998 Date last 2020 Obs 8
Pa first 274 Pa last 273.6 P.A. Now (θ) 273.6°
Sep first 15.8 Sep last 15.921 Sep. Now (ρ) 15.921"
Mag pri 11.50 Mag sec 14.20 delta mag (ΔM) 2.7 Spectral class
Pri motion ra -005 Sec motion ra -014
Pri motion dec +007 Sec motion dec +011
Notes N R (See Notes, Red magnitudes)
rPM=0.553
Nature of this double is uncertain.
 
 
21028+3534 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 21 02 46 +35 33 30 SEI 1375 AB 2020 14 339 6.5 12.30 11.50 0.80
Show 21 02 46 +35 33 30 SEI 1376 AC 2020 11 270 11.1 12.30 12.70 0.40
Show 21 02 46 +35 33 36 BTG 6 BC 2020 11 235 10.6 11.50 12.70 1.20
Show 21 02 46 +35 33 36 BTG 6 BD 2020 8 274 15.9 11.50 14.20 2.70 <===
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Gaia DR2 1868182788042313856