12307+5352 ES  726AB

Coord 2000	12307+5352		Discov num	ES  726		Comp	AB		Coord arcsec 2000	12 30 49.06 +53 51 29.7
Date first	1917		Date last	2015		Obs	7
Pa first	171		Pa last	158		P.A. Now (θ)	158°
Sep first	8.7		Sep last	9.4		Sep. Now (ρ)	9.4"
Mag pri	10.48		Mag sec	12.40		delta mag (ΔM)	1.92		Spectral class	G9V (yellow)
Pri motion ra	-006		Sec motion ra	+015
Pri motion dec	-004		Sec motion dec	-017
Notes	N L (See Notes, Linear solution)

rPM=1.089 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			12307+5352	ES 726	AB	1917	2015	7	158	9.4	10.48	12.40	1.92		<===
Show			12307+5352	ES 726	AC	1909	2015	9	177	20.6	10.48	13.60	3.12
Show			12307+5352	ABH 78	AD	1988	2015	4	115	28.2	10.43	14.28	3.85

Quadruple system
4 visible stars in this system

Precise pa	157.9		Precise sep	9.428		Constellation	Ursa Major		Tycho2	3841-00073-1
Gaia DR2	87917891456

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
12307+5352	ES 726	AB	1999	3	161	9.3	10.48	12.40	G9V	D	123049.06+535129.7
12307+5352	ES 726	AB	2006	6	159	9.3	10.48	12.40	G9V	N D	123049.06+535129.7
12307+5352	ES 726	AB	2010	6	160	9.0	10.48	12.40	G9V	NL	123049.06+535129.7
12307+5352	ES 726	AB	2011	6	159	9.4	10.48	12.40	G9V	NL	123049.06+535129.7
12307+5352	ES 726	AB	2015	7	158	9.4	10.48	12.40	G9V	NL	123049.06+535129.7

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