20094+3630 BKO  96AM

Coord 2000	20094+3630		Discov num	BKO  96		Comp	AM		Coord arcsec 2000	20 09 26.07 +36 29 19.5
Date first	1998		Date last	2015		Obs	7
Pa first	355		Pa last	355		P.A. Now (θ)	355°
Sep first	81.2		Sep last	81.1		Sep. Now (ρ)	81.1"
Mag pri	8.61		Mag sec	11.90		delta mag (ΔM)	3.29		Spectral class	B0Ib (blue-white)
Pri motion ra	-002		Sec motion ra	-003
Pri motion dec	-009		Sec motion dec	-005
Notes	N (See Notes)

Visually invisible, K-band or other infrared star rPM=0.447 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		69517	20094+3630	SEI 928	AB	1896	2018	13	133	10.3	8.61	10.10	1.49
Show		69517	20094+3630	SEI 927	AC	1896	2015	11	324	18.8	8.61	11.10	2.49
Show		69517	20094+3630	SEI 926	AD	1896	2018	20	350	29.2	8.61	9.50	0.89
Show		69517	20094+3630	ABH 131	AE	1987	2015	9	297	9.8	8.61	13.60	4.99
Show		69517	20094+3630	ABH 131	AF	1987	2015	8	267	10.7	8.61	14.20	5.59
Show		69517	20094+3630	ABH 131	AG	1987	2015	9	282	16.9	8.61	13.94	5.33
Show		69517	20094+3630	ABH 131	AH	1987	2015	8	154	67.2	8.61	13.66	5.05
Show		69517	20094+3630	ABH 131	AI	1896	2015	13	100	99.4	8.61	11.69	3.08
Show		69517	20094+3630	BKO 96	AJ	1998	2015	8	50	17.4	8.61	13.30	4.69
Show		69517	20094+3630	BKO 96	AK	1998	2015	8	29	34.9	8.61	13.00	4.39
Show		69517	20094+3630	BKO 96	AM	1998	2015	7	355	81.1	8.61	11.90	3.29		<===
Show		69517	20094+3630	BKO 96	DL	1896	2015	8	18	14.9	9.50	12.50	3.00
Show		69517	20094+3630	BKO 96	MN	1998	2015	7	257	17.6	11.90	12.70	0.80

14-fold system
14 visible stars in this system

Precise pa	354.5		Precise sep	81.139		Constellation	Cygnus		SAO	69517
Tycho2	2683-00350-1		Gaia DR2	96250413696		HD	191611

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20094+3630	BKO 96	AM	2002	1	355	81.1	8.61	11.90	B0Ib		200926.07+362919.5
20094+3630	BKO 96	AM	2015	7	355	81.1	8.61	11.90	B0Ib	N	200926.07+362919.5

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