19589+4402 KOI 6987 AD

 
 
19h 58m 51.37s +44° 02' 13.8" P.A. 358.00 sep 3.9 mag 12.40,17.80
 
 
Coord 2000 19589+4402 Discov num KOI6987 Comp AD Coord arcsec 2000 19 58 51.37 +44 02 13.8
Date first 2010 Date last 2010 Obs 1
Pa first 358 Pa last 357.7 P.A. Now (θ) 357.7°
Sep first 3.9 Sep last 3.862 Sep. Now (ρ) 3.862"
Mag pri 12.40 Mag sec 17.80 delta mag (ΔM) 5.4 Spectral class
Pri motion ra -002 Sec motion ra
Pri motion dec -007 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.
 
 
19589+4402 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 19 58 51 +44 02 14 KOI 6987 AB 2015 2 59 2.8 12.40 15.50 3.10
Show 19 58 51 +44 02 14 KOI 6987 AC 2010 1 316 3.0 12.40 18.70 6.30
Show 19 58 51 +44 02 14 KOI 6987 AD 2010 1 358 3.9 12.40 17.80 5.40 <===
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Gaia DR2 2076106930846104832