20052+3829 WAL 126AC

Coord 2000	20052+3829		Discov num	WAL 126		Comp	AC		Coord arcsec 2000	20 05 09.78 +38 28 42.4
Date first	1928		Date last	2015		Obs	6
Pa first	182		Pa last	212		P.A. Now (θ)	212°
Sep first	38.4		Sep last	70.4		Sep. Now (ρ)	70.4"
Mag pri	6.17		Mag sec	12.22		delta mag (ΔM)	6.05		Spectral class	G3V (yellow)
Pri motion ra	+263		Sec motion ra
Pri motion dec	+112		Sec motion dec
Notes	U (Proper motion indicates non-physical)

Visually invisible, K-band or other infrared star This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		69377	20052+3829	BU 1481	AB	1906	2015	4	240	42.7	6.17	13.20	7.03
Show		69377	20052+3829	WAL 126	AC	1928	2015	6	212	70.4	6.17	12.22	6.05		<===
Show		69377	20052+3829	LLO 21	AD	2000	2000	1	212	4.9	4.62	14.90	10.28
Show		69377	20052+3829	LLO 21	AE	2000	2000	1	169	9.1	4.62	15.20	10.58

Quintuple system
5 visible stars in this system

Precise pa	212.3		Precise sep	70.405		Constellation	Cygnus		SAO	69377
HIP	98921		Tycho2	3150-03061-1		Gaia DR2	42143320064		HD	190771
HR	7683		GL	GJ 1249		BD	BD+38 3896		Distance	18.79
Distance ly	61.29

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20052+3829	WAL 126	AC	1944	3	180	40.0	6.17	12.22	G3V		200509.59+382841.5
20052+3829	WAL 126	AC	2000	5	210	66.9	6.17	12.22	G3V	U	200509.59+382841.5
20052+3829	WAL 126	AC	2013	6	212	70.2	6.17	12.22	G3V	U	200509.59+382841.5
20052+3829	WAL 126	AC	2015	7	212	70.4	6.17	12.22	G3V	U	200509.78+382842.4

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