19559+4012 KOI 4208 AC

Coord 2000	19559+4012		Discov num	KOI4208		Comp	AC		Coord arcsec 2000	19 55 56.40 +40 12 13.3
Date first	2010		Date last	2015		Obs	2
Pa first	356		Pa last	354.5		P.A. Now (θ)	354.5°
Sep first	2.4		Sep last	2.399		Sep. Now (ρ)	2.399"
Mag pri	13.79		Mag sec	18.40		delta mag (ΔM)	4.61		Spectral class
Pri motion ra	-005		Sec motion ra
Pri motion dec	-012		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 55 56 +40 12 13	KOI 4208 AB	2016	2	235	0.9	15.60	18.20	2.60
Show			19 55 56 +40 12 13	KOI 4208 AC	2015	2	355	2.4	13.79	18.40	4.61		<===
Show			19 55 56 +40 12 13	KOI 4208 AD	2015	2	275	3.1	13.79	19.32	5.53

Quadruple system
4 estimated visually detectable stars in this system

Constellation

Cygnus

Gaia DR2

2073540322804985216