20073+3534 COU2125Aa,Ab

Coord 2000	20073+3534		Discov num	COU2125		Comp	Aa,Ab		Coord arcsec 2000	20 07 16.22 +35 34 27.9
Date first	1982		Date last	1989		Obs	2
Pa first	78		Pa last	69		P.A. Now (θ)	69°
Sep first	0.1		Sep last	0.1		Sep. Now (ρ)	0.1"
Mag pri	9.90		Mag sec	9.90		delta mag (ΔM)	0		Spectral class	B2III: (blue-white)
Pri motion ra	+007		Sec motion ra
Pri motion dec	-015		Sec motion dec
Notes

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			20073+3534	COU2125	Aa,Ab	1982	1989	2	69	0.1	9.90	9.90	0.00		<===
Show			20073+3534	ES 2248	AB	1926	1998	2	30	5.9	9.15	13.80	4.65
Show			20073+3534	ES 2248	AC	2000	2000	1	222	50.6	9.15	13.80	4.65
Show			20073+3534	SEI 893	CD	1896	2015	10	119	27.4	9.47	12.07	2.60

Quintuple system
4 visible stars in this system

Precise pa	69		Precise sep	0.085		Constellation	Cygnus		SAO	69444
Tycho2	2679-00177-1		Gaia DR2	50919122816		HD	227758

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20073+3534	COU2125	Aa,Ab	1989	2	69	0.1	9.90	9.90	B2III:		200716.22+353427.9

If you need more information about this double, apply for a data request form to the WDS.