20074+3553 BKO  92BC

Coord 2000	20074+3553		Discov num	BKO  92		Comp	BC		Coord arcsec 2000	20 07 18.64 +35 53 43.0
Date first	1998		Date last	2015		Obs	8
Pa first	45		Pa last	45		P.A. Now (θ)	45°
Sep first	14.5		Sep last	14.4		Sep. Now (ρ)	14.4"
Mag pri	12.40		Mag sec	14.40		delta mag (ΔM)	2		Spectral class
Pri motion ra	-004		Sec motion ra
Pri motion dec	-002		Sec motion dec
Notes

Nature of this double is uncertain.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		69448	20 07 19 +35 53 15	SEI 894 AB	2015	12	344	29.1	12.32	12.40	0.08
Show		69448	20 07 19 +35 53 43	BKO 92 BC	2015	8	45	14.4	12.40	14.40	2.00		<===

Triple system
3 visible stars in this system

Precise pa	45.2		Precise sep	14.402		Constellation	Cygnus		SAO	69448
Tycho2	2683-01930-1		Gaia DR2	2059103838215434112

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20074+3553	BKO 92	BC	2002	2	44	14.7	12.57	14.40		D	200718.64+355343.0
20074+3553	BKO 92	BC	2010	4	45	14.4	12.40	14.40			200718.64+355343.0
20074+3553	BKO 92	BC	2015	4	45	14.4	12.40	14.40			200718.64+355343.0

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