20120+3429 A   282AB

Coord 2000	20120+3429		Discov num	A   282		Comp	AB		Coord arcsec 2000	20 12 01.92 +34 28 44.2
Date first	1901		Date last	2007		Obs	24
Pa first	206		Pa last	208		P.A. Now (θ)	208°
Sep first	0.2		Sep last	0.3		Sep. Now (ρ)	0.3"
Mag pri	7.90		Mag sec	8.10		delta mag (ΔM)	0.2		Spectral class	A5III (white)
Pri motion ra	+016		Sec motion ra
Pri motion dec	-007		Sec motion dec
Notes	N (See Notes)

Visually invisible, K-band or other infrared star Nature of this double is uncertain.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		69588	20120+3429	A 282	AB	1901	2007	24	208	0.3	7.90	8.10	0.20		<===
Show		69588	20120+3429	HO 121	AB,C	1884	2015	19	12	24.5	7.27	12.20	4.93
Show		69588	20120+3429	HO 121	AB,D	1889	2015	9	11	42.0	7.27	11.70	4.43

Quadruple system
5 visible stars in this system

Precise pa	207.6		Precise sep	0.298		Constellation	Cygnus		SAO	69588
HIP	99532		Tycho2	2679-01494-1		HD	192124		BD	BD+34 3908
Distance	148.81		Distance ly	485.42

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20120+3429	A 282	AB	2004	24	207	0.3	7.90	8.10	A5III		201201.92+342844.2
20120+3429	A 282	AB	2007	25	208	0.3	7.90	8.10	A5III		201201.92+342844.2

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