19583+3333 WAL 123AB,D

Coord 2000	19583+3333		Discov num	WAL 123		Comp	AB,D		Coord arcsec 2000	19 58 18.39 +33 33 08.8
Date first	1933		Date last	2015		Obs	9
Pa first	264		Pa last	259		P.A. Now (θ)	259°
Sep first	37.0		Sep last	38.7		Sep. Now (ρ)	38.7"
Mag pri	9.98		Mag sec	13.69		delta mag (ΔM)	3.71		Spectral class	A0 (white)
Pri motion ra	+002		Sec motion ra	+004
Pri motion dec	+002		Sec motion dec	-005
Notes

rPM=1.137 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		69177	19583+3333	HO 582	AB	1895	2016	16	314	0.6	9.98	10.05	0.07
Show		69177	19583+3333	HO 582	AC	1895	2015	11	191	8.8	9.98	13.10	3.12
Show		69177	19583+3333	WAL 123	AB,D	1933	2015	9	259	38.7	9.98	13.69	3.71		<===

Quadruple system
5 visible stars in this system

Precise pa	258.8		Precise sep	38.695		Constellation	Cygnus		SAO	69177
Tycho2	2674-00738-1		Gaia DR2	83688657408		HD	189336

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19583+3333	WAL 123	AB,D	1998	4	259	38.5	9.35	12.50		D	195818.39+333308.8
19583+3333	WAL 123	AB,D	2002	5	259	38.6	9.98	13.10		D	195818.39+333308.8
19583+3333	WAL 123	AB,D	2015	9	259	38.7	9.98	13.69	A0		195818.39+333308.8

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