19319+4900 KOI 539 AC

Coord 2000	19319+4900		Discov num	KOI 539		Comp	AC		Coord arcsec 2000	19 31 54.91 +48 59 48.0
Date first	2013		Date last	2013		Obs	1
Pa first	54		Pa last	53.8		P.A. Now (θ)	53.8°
Sep first	1.3		Sep last	1.288		Sep. Now (ρ)	1.288"
Mag pri	12.60		Mag sec	19.80		delta mag (ΔM)	7.2		Spectral class
Pri motion ra	+010		Sec motion ra
Pri motion dec	-003		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.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			19 31 55 +48 59 48	KOI 539 AB	2013	1	59	0.1	12.90	13.90	1.00
Show			19 31 55 +48 59 48	KOI 539 AC	2013	1	54	1.3	12.60	19.80	7.20		<===

Triple system
3 estimated visually detectable stars in this system

Constellation

Cygnus

Gaia DR2

2129030445573033088