20072+3616 BKO  89EF

Coord 2000	20072+3616		Discov num	BKO  89		Comp	EF		Coord arcsec 2000	20 07 02.23 +36 16 32.3
Date first	1998		Date last	2015		Obs	8
Pa first	20		Pa last	19		P.A. Now (θ)	19°
Sep first	7.7		Sep last	7.6		Sep. Now (ρ)	7.6"
Mag pri	11.00		Mag sec	14.00		delta mag (ΔM)	3		Spectral class	G2:V: (yellow)
Pri motion ra	+006		Sec motion ra	-027
Pri motion dec	+000		Sec motion dec	-004
Notes

rPM=1.218 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			20072+3616	SEI 891	AB	1896	2015	11	171	18.7	11.15	12.53	1.38
Show			20072+3616	BKO 89	AC	1998	2015	8	349	29.1	11.15	12.46	1.31
Show			20072+3616	BKO 89	AE	1895	2015	14	282	120.8	11.15	11.00	0.15
Show		69440	20072+3616	BKO 89	CD	1998	2015	8	192	9.7	13.20	13.70	0.50
Show			20072+3616	BKO 89	EF	1998	2015	8	19	7.6	11.00	14.00	3.00		<===

Sextuple system
6 visible stars in this system

Precise pa	19.2		Precise sep	7.588		Constellation	Cygnus		Tycho2	2683-01424-1
Gaia DR2	20454537984

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20072+3616	BKO 89	EF	2002	2	19	7.5	11.00	14.00		D	200702.23+361632.3
20072+3616	BKO 89	EF	2010	4	18	7.5	11.00	14.00	G2:V:		200702.23+361632.3
20072+3616	BKO 89	EF	2015	4	19	7.6	11.00	14.00	G2:V:		200702.23+361632.3

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