18574+4131 KOI 227 AD

18h 57m 24.49s +41° 31' 09.1" P.A. 190.00 sep 6.5 mag 11.50,14.20

Coord 2000 18574+4131 Discov num KOI 227 Comp AD Coord arcsec 2000 18 57 24.49 +41 31 09.1
Date first 1998 Date last 2013 Obs 2
Pa first 189 Pa last 189.9 P.A. Now (θ) 189.9°
Sep first 6.9 Sep last 6.549 Sep. Now (ρ) 6.549"
Mag pri 11.50 Mag sec 14.20 delta mag (ΔM) 2.7 Spectral class
Pri motion ra +009 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.



18574+4131 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 18 57 24 +41 31 09 KOI 227 AB 2013 4 71 0.3 14.00 15.00 1.00
Show 18 57 24 +41 31 09 KOI 227 AC 2013 1 149 3.4 11.50 17.90 6.40
Show 18 57 24 +41 31 09 KOI 227 AD 2013 2 190 6.5 11.50 14.20 2.70 <===


Quadruple system
4 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Constellation Lyra