21306+4213 FYM 336 AC

 
 
21h 30m 35.00s +42° 12' 40.4" P.A. 123.00 sep 9.5 mag 8.27,14.90 Sp A7V dist. 173.91 pc (567.29 l.y.)
 
 
Coord 2000 21306+4213 Discov num FYM 336 Comp AC Coord arcsec 2000 21 30 35.00 +42 12 40.4
Date first 1998 Date last 2015 Obs 7
Pa first 123 Pa last 122.5 P.A. Now (θ) 122.5°
Sep first 9.6 Sep last 9.5 Sep. Now (ρ) 9.5"
Mag pri 8.27 Mag sec 14.90 delta mag (ΔM) 6.63 Spectral class A7V (white)
Pri motion ra -001 Sec motion ra
Pri motion dec -009 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
21306+4213 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 204919 50950 21 30 35 +42 12 40 STT 441 AB 2015 21 328 6.1 8.27 11.26 2.99
Show 50950 21 30 35 +42 12 40 FYM 336 AC 2015 7 123 9.5 8.27 14.90 6.63 <===
Show 50950 21 30 35 +42 12 40 FYM 336 AD 2015 7 280 19.4 8.27 14.70 6.43
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus SAO 50950 HIP 106191 Tycho2 3191-01712-1
Gaia DR2 1967214632123902976 HD 204919 BD BD+41 4169 Distance 173.91
Distance ly 567.29