01237+6806 SKF 978 AC (HD 8243)

Coord 2000	01237+6806		Discov num	SKF 978		Comp	AC		Coord arcsec 2000	01 23 42.33 +68 06 24.4
Date first	1989		Date last	2015		Obs	9
Pa first	245		Pa last	255.7		P.A. Now (θ)	255.7°
Sep first	7.8		Sep last	8.889		Sep. Now (ρ)	8.889"
Mag pri	7.02		Mag sec	8.55		delta mag (ΔM)	1.53		Spectral class	G5V (yellow)
Pri motion ra	+089		Sec motion ra	-007
Pri motion dec	-078		Sec motion dec	-002
Notes	U K (Proper motion indicates non-physical, K-band or other infrared magnitudes)

Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes rPM=1.035 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			01 23 42 +68 06 24	SKF 978 AB	2016	9	254	17.2	9.20	18.00	8.80
Show	HD 8243	11732	01 23 42 +68 06 24	SKF 978 AC	2015	9	256	8.9	7.02	8.55	1.53		<===
Show			01 23 42 +68 06 24	SKF 978 AD	2015	10	251	24.5	9.20	14.30	5.10

Quadruple system
4 estimated visually detectable stars in this system

Name	HD 8243		Constellation	Cassiopeia		SAO	11732		Tycho2	4297-01030-1
Gaia DR2	531850305690610688		HD	8243		DM	BD+67 118