20238+3830 BKO 153AD

Coord 2000	20238+3830		Discov num	BKO 153		Comp	AD		Coord arcsec 2000	20 23 51.01 +38 29 34.3
Date first	1895		Date last	2012		Obs	9
Pa first	120		Pa last	119		P.A. Now (θ)	119°
Sep first	53.7		Sep last	54.6		Sep. Now (ρ)	54.6"
Mag pri	8.65		Mag sec	11.50		delta mag (ΔM)	2.85		Spectral class	F0III (yellow-white)
Pri motion ra	-012		Sec motion ra	-006
Pri motion dec	-010		Sec motion dec	-005
Notes	N (See Notes)

rPM=0.5 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			20238+3830	BUP 209	AB	1879	2012	8	320	38.6	8.65	12.12	3.47
Show			20238+3830	BUP 209	AC	1879	2012	18	296	65.8	8.65	9.34	0.69
Show			20238+3830	BKO 153	AD	1895	2012	9	119	54.6	8.65	11.50	2.85		<===
Show			20238+3830	BKO 153	BE	1998	2013	4	263	14.8	12.12	14.08	1.96
Show			20238+3830	BKO 153	BF	1998	2012	4	323	16.0	12.12	13.70	1.58
Show			20238+3830	BKO 153	BG	1998	2012	4	30	14.8	12.12	14.40	2.28
Show			20238+3830	FYM 128	BH	1998	2012	3	221	10.7	12.12	15.56	3.44
Show			20238+3830	FYM 128	BI	1998	2012	3	58	31.6	12.12	14.41	2.29

Ninefold system
9 visible stars in this system

Precise pa	118.6		Precise sep	54.6		Cdsa2 id	BKO 153 AD		Constellation	Cygnus
Ra deg	20.397502777777778		De deg	38.49286111111111		last precise pa	118.6		last precise sep	54.6

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20238+3830	BKO 153	AD	2003	7	119	54.6	8.65	11.50		D	202351.01+382934.3
20238+3830	BKO 153	AD	2012	9	119	54.6	8.65	11.50		N D	202351.01+382934.3

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