20054+4440 KOI 2181 AB

 
 
20h 05m 22.28s +44° 40' 19.9" P.A. 71.00 sep 3.5 mag 12.40,18.80
 
 
Coord 2000 20054+4440 Discov num KOI2181 Comp AB Coord arcsec 2000 20 05 22.28 +44 40 19.9
Date first 2013 Date last 2013 Obs 1
Pa first 71 Pa last 71.2 P.A. Now (θ) 71.2°
Sep first 3.5 Sep last 3.535 Sep. Now (ρ) 3.535"
Mag pri 12.40 Mag sec 18.80 delta mag (ΔM) 6.4 Spectral class
Pri motion ra -003 Sec motion ra
Pri motion dec +005 Sec motion dec
Notes K (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.
 
 
20054+4440 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 05 22 +44 40 20 KOI 2181 AB 2013 1 71 3.5 12.40 18.80 6.40 <===
Show 20 05 22 +44 40 20 KOI 2181 AC 2013 2 28 3.8 12.40 18.30 5.90
Show 20 05 22 +44 40 20 KOI 2181 AD 2013 1 184 7.6 12.40 18.10 5.70
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Gaia DR2 2081919842663938688