20145+3640 RJJ 1 Aa,Ab

Coord 2000	20145+3640		Discov num	RJJ   1		Comp	Aa,Ab		Coord arcsec 2000	20 14 31.77 +36 39 39.6
Date first	2005		Date last	2013		Obs	2
Pa first	295		Pa last	131.6		P.A. Now (θ)	131.6°
Sep first	0.0		Sep last	0.004		Sep. Now (ρ)	0.004"
Mag pri	7.40		Mag sec	7.70		delta mag (ΔM)	0.3		Spectral class	WC7+O9V (Wolf-Rayet/blue)
Pri motion ra	-003		Sec motion ra
Pri motion dec	-007		Sec motion dec
Notes	N K (See Notes, 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		69677	20 14 32 +36 39 40	RJJ 1 Aa,Ab	2013	2	132	0.0	7.40	7.70	0.30		<===
Show	V1679 Cyg	69677	20 14 32 +36 39 40	BLL 48 AB	2015	21	117	113.6	7.97	10.06	2.09

Triple system
2 estimated visually detectable stars in this system

Var name	V1679 Cyg		Constellation	Cygnus		SAO	69677		HIP	99769
Tycho2	2683-03369-1		Gaia DR2	2060508777869902592		HD	192641		BD	BD+36 3956
Distance	2083.33		Distance ly	6795.82