21004+3411 BU 1329 AB

 
 
21h 00m 26.00s +34° 10' 42.4" P.A. 39.00 sep 0.3 mag 8.90,9.10 Sp A2
 
 
Coord 2000 21004+3411 Discov num BU 1329 Comp AB Coord arcsec 2000 21 00 26.00 +34 10 42.4
Date first 1902 Date last 2012 Obs 26
Pa first 59 Pa last 38.7 P.A. Now (θ) 38.7°
Sep first 0.3 Sep last 0.321 Sep. Now (ρ) 0.321"
Mag pri 8.90 Mag sec 9.10 delta mag (ΔM) 0.2 Spectral class A2 (white)
Pri motion ra +031 Sec motion ra
Pri motion dec -024 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
21004+3411 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 70781 21 00 26 +34 10 42 BU 1329 AB 2012 26 39 0.3 8.90 9.10 0.20 <===
Show HD 200121 70781 21 00 26 +34 10 42 BU 1329 AB,C 2015 16 30 6.8 8.84 10.53 1.69
Triple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus SAO 70781 Tycho2 2709-00544-1 Gaia DR2 1866412333803837312
HD 200121