19415+3903 KOI 2904 AD

19h 41m 30.57s +39° 02' 52.9" P.A. 24.00 sep 7.7 mag 12.90,16.90

Coord 2000 19415+3903 Discov num KOI2904 Comp AD Coord arcsec 2000 19 41 30.57 +39 02 52.9
Date first 1998 Date last 2017 Obs 5
Pa first 21 Pa last 23.7 P.A. Now (θ) 23.7°
Sep first 8.9 Sep last 7.715 Sep. Now (ρ) 7.715"
Mag pri 12.90 Mag sec 16.90 delta mag (ΔM) 4 Spectral class
Pri motion ra -004 Sec motion ra
Pri motion dec -001 Sec motion dec
Notes N (See Notes)




Nature of this double is uncertain.



19415+3903 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 19 41 31 +39 02 53 KOI 2904 AB 2016 20 227 0.7 12.68 15.80 3.12
Show 19 41 31 +39 02 53 KOI 2904 AC 2017 5 53 3.9 12.90 16.80 3.90
Show 19 41 31 +39 02 53 KOI 2904 AD 2017 5 24 7.7 12.90 16.90 4.00 <===


Quadruple system
4 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Constellation Cygnus Gaia DR2 2076173859319258368