19305+4246 KOI 2687 AB

19h 30m 27.62s +42° 45' 51.3" P.A. 239.00 sep 2.8 mag 8.70,13.00

Coord 2000 19305+4246 Discov num KOI2687 Comp AB Coord arcsec 2000 19 30 27.62 +42 45 51.3
Date first 2014 Date last 2014 Obs 1
Pa first 239 Pa last 238.5 P.A. Now (θ) 238.5°
Sep first 2.8 Sep last 2.774 Sep. Now (ρ) 2.774"
Mag pri 8.70 Mag sec 13.00 delta mag (ΔM) 4.3 Spectral class
Pri motion ra -019 Sec motion ra
Pri motion dec +021 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.



19305+4246 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 19 30 28 +42 45 51 KOI 2687 AB 2014 1 239 2.8 8.70 13.00 4.30 <===
Show 19 30 28 +42 45 51 KOI 2687 AC 2014 1 267 3.8 8.70 14.50 5.80
Show 19 30 28 +42 45 51 KOI 2687 AD 2014 1 106 5.2 8.70 14.90 6.20


Quadruple system
4 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Constellation Cygnus Gaia DR2 2125751461382627840