19579+6258 HJ 2923AB

Coord 2000	19579+6258		Discov num	HJ 2923		Comp	AB		Coord arcsec 2000	19 58 31.96 +63 08 52.7
Date first	1831		Date last	2015		Obs	8
Pa first	348		Pa last	351		P.A. Now (θ)	351°
Sep first	20.0		Sep last	28.5		Sep. Now (ρ)	28.5"
Mag pri	8.70		Mag sec	13.10		delta mag (ΔM)	4.4		Spectral class	G5 (yellow)
Pri motion ra	-004		Sec motion ra	-003
Pri motion dec	-013		Sec motion dec	-015
Notes	N (See Notes)

Visually invisible, K-band or other infrared star rPM=0.146 (< 0.3, Physical double) This double is physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		18628	19579+6258	HJ 2923	AB	1831	2015	8	351	28.5	8.70	13.10	4.40		<===
Show		18622	19579+6258	BU 9035	CD	1905	1999	2	237	47.2	8.43	13.60	5.17

Quadruple system
4 visible stars in this system

Precise pa	350.8		Precise sep	28.452		Constellation	Draco		SAO	18628
Tycho2	4235-01866-1		Gaia DR2	74845753344		HD	189878

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19579+6258	HJ 2923	AB	1831	1	168	20.0	8.70	16.90	G	N	195753.81+625749.3
19579+6258	HJ 2923	AB	2010	4	349	28.1	8.70	13.10	G5	N	195831.96+630852.7
19579+6258	HJ 2923	AB	2015	8	351	28.5	8.70	13.10	G5	N	195831.96+630852.7

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