01243+5858 ES 1712AB

Coord 2000	01243+5858		Discov num	ES 1712		Comp	AB		Coord arcsec 2000	01 24 20.10 +58 56 47.2
Date first	1908		Date last	2015		Obs	20
Pa first	5		Pa last	2		P.A. Now (θ)	2°
Sep first	50.4		Sep last	47.2		Sep. Now (ρ)	47.2"
Mag pri	7.90		Mag sec	9.33		delta mag (ΔM)	1.43		Spectral class	K0 (yellow-orange)
Pri motion ra	+003		Sec motion ra	-014
Pri motion dec	-004		Sec motion dec	-036
Notes

rPM=0.938 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		22240	01243+5858	ES 1712	AB	1908	2015	20	2	47.2	7.90	9.33	1.43		<===
Show		22241	01243+5858	ES 1712	BC	1918	2015	8	298	5.4	9.33	13.90	4.57

Triple system
3 visible stars in this system

Precise pa	1.9		Precise sep	47.164		Constellation	Cassiopeia		SAO	22240
HIP	6562		Tycho2	3682-01466-1		Gaia DR2	2503162496		HD	8372
BD	BD+58 230		Distance	526.32		Distance ly	1716.86

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
01243+5858	ES 1712	AB	2002	13	3	47.4	7.90	9.33		D	012420.10+585647.2
01243+5858	ES 1712	AB	2008	14	2	47.8	7.90	9.33		D	012420.10+585647.2
01243+5858	ES 1712	AB	2011	15	2	47.4	7.90	9.33		D	012420.10+585647.2
01243+5858	ES 1712	AB	2014	17	4	48.1	7.90	9.33	K0		012420.10+585647.2
01243+5858	ES 1712	AB	2015	18	2	47.2	7.90	9.33	K0		012420.10+585647.2

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