20324+4118 CIA 33 Aa,Ac

 
 
20h 32m 22.42s +41° 18' 18.9" P.A. 275.00 sep 0.0 mag 4.70,8.60 Sp O7I
 
 
Coord 2000 20324+4118 Discov num CIA  33 Comp Aa,Ac Coord arcsec 2000 20 32 22.42 +41 18 18.9
Date first 2019 Date last 2019 Obs 1
Pa first 275 Pa last 274.9 P.A. Now (θ) 274.9°
Sep first 0.0 Sep last 0.007 Sep. Now (ρ) 0.007"
Mag pri 4.70 Mag sec 8.60 delta mag (ΔM) 3.9 Spectral class O7I (blue)
Pri motion ra -001 Sec motion ra
Pri motion dec -006 Sec motion dec
Notes N K (See Notes, 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
Nature of this double is uncertain.
 
 
20324+4118 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 32 22 +41 18 19 CIA 33 Aa,Ab 2019 2 107 0.0 4.70 6.30 1.60
Show 20 32 22 +41 18 19 CIA 33 Aa,Ac 2019 1 275 0.0 4.70 8.60 3.90 <===
Show V729 Cyg 20 32 22 +41 18 19 HER 3 AB 2018 11 55 0.9 9.40 11.94 2.54
Show 20 32 22 +41 18 19 MZA 25 AC 2015 9 324 20.5 9.40 15.40 6.00
Show 20 32 22 +41 18 19 MZA 25 AD 2015 5 226 5.5 9.40 16.80 7.40
Sextuple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3161-01401-1