20065+3609 BKO  85AC

Coord 2000	20065+3609		Discov num	BKO  85		Comp	AC		Coord arcsec 2000	20 06 33.89 +36 08 55.0
Date first	1998		Date last	2015		Obs	8
Pa first	257		Pa last	255		P.A. Now (θ)	255°
Sep first	9.3		Sep last	9.4		Sep. Now (ρ)	9.4"
Mag pri	9.30		Mag sec	12.80		delta mag (ΔM)	3.5		Spectral class	G5IV (yellow)
Pri motion ra	+002		Sec motion ra	-006
Pri motion dec	-001		Sec motion dec	-004
Notes

rPM=1.185 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		69416	20065+3609	SEI 880	AB	1896	2015	12	298	20.0	9.30	11.50	2.20
Show		69416	20065+3609	BKO 85	AC	1998	2015	8	255	9.4	9.30	12.80	3.50		<===
Show		69416	20065+3609	BKO 85	BD	1983	2015	9	271	28.8	11.50	12.40	0.90

Quadruple system
4 visible stars in this system

Precise pa	255		Precise sep	9.42		Constellation	Cygnus		SAO	69416
Tycho2	2683-02360-1		Gaia DR2	49632607488		HD	227693

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20065+3609	BKO 85	AC	2002	2	255	9.3	9.33	12.80		D	200633.89+360855.0
20065+3609	BKO 85	AC	2015	4	255	9.4	9.30	12.80	G5IV		200633.89+360855.0

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