19423+4248 KOI 987 AC

Coord 2000	19423+4248		Discov num	KOI 987		Comp	AC		Coord arcsec 2000	19 42 17.79 +42 48 23.1
Date first	2012		Date last	2012		Obs	1
Pa first	143		Pa last	143		P.A. Now (θ)	143°
Sep first	2.2		Sep last	2.175		Sep. Now (ρ)	2.175"
Mag pri	10.80		Mag sec	17.40		delta mag (ΔM)	6.6		Spectral class
Pri motion ra	+007		Sec motion ra
Pri motion dec	-002		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 42 18 +42 48 23	KOI 987 AB	2016	8	226	2.0	12.33	16.40	4.07
Show			19 42 18 +42 48 23	KOI 987 AC	2012	1	143	2.2	10.80	17.40	6.60		<===
Show			19 42 18 +42 48 23	KOI 987 AD	2012	1	157	5.3	10.80	18.30	7.50
Show			19 42 18 +42 48 23	KOI 987 AE	2014	1	1	6.0	10.80	19.60	8.80

Quintuple system
5 estimated visually detectable stars in this system

Constellation

Cygnus

Gaia DR2

2077994272606400512