20145+3648 ENG  72AB (29 Cyg)

Coord 2000	20145+3648		Discov num	ENG  72		Comp	AB		Coord arcsec 2000	20 14 31.98 +36 48 22.1
Date first	1887		Date last	2016		Obs	29
Pa first	153		Pa last	155		P.A. Now (θ)	155°
Sep first	212.0		Sep last	215.3		Sep. Now (ρ)	215.3"
Mag pri	4.96		Mag sec	6.71		delta mag (ΔM)	1.75		Spectral class	A2V (white)
Pri motion ra	+070		Sec motion ra	+001
Pri motion dec	+069		Sec motion dec	-004
Notes	N Y (See Notes, Parallax indicates components are non-physical)

rPM=1.022 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	29 Cyg	69678	20145+3648	ENG 72	AB	1887	2016	29	155	215.3	4.96	6.71	1.75		<===
Show			20145+3648	ENG 72	AC	1887	2012	23	22	212.3	4.96	9.99	5.03
Show			20145+3648	BUP 207	AE	1896	2012	14	325	35.2	4.96	12.20	7.24
Show			20145+3648	SMR 39	AF	1896	2013	6	33	32.7	4.96	12.50	7.54
Show			20145+3648	FYM 105	AH	2013	2013	1	133	10.0	4.96	12.00	7.04
Show			20145+3648	ENG 72	BD	1894	2015	19	120	217.5	6.71	10.72	4.01

Septuple system
7 visible stars in this system

Precise pa	154.9		Precise sep	215.3		Name	29 Cyg		Other name	b3 Cyg
Var name	V1644 Cyg		Constellation	Cygnus		SAO	69678		HIP	99770
Tycho2	2683-03962-1		Gaia DR2	18197844608		HD	192640		HR	7736
GC	28124		BD	BD+36 3955		Flamsteed	29 Cygni		Flamsteed name	29 Cyg
Distance	42.7		Distance ly	139.29

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20145+3648	ENG 72	AB	2002	23	156	215.8	4.96	6.71	A2V	NYD	201431.98+364822.1
20145+3648	ENG 72	AB	2012	26	155	216.3	4.96	6.71	A2V	NYD	201431.98+364822.1
20145+3648	ENG 72	AB	2016	29	155	215.3	4.96	6.71	A2V	NY	201431.98+364822.1

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