02489+6938 DRS 3 AB (RZ Cas)

Coord 2000	02489+6938		Discov num	DRS   3		Comp	AB		Coord arcsec 2000	02 48 55.51 +69 38 03.1
Date first	2008		Date last	2008		Obs	1
Pa first	230		Pa last	229.8		P.A. Now (θ)	229.8°
Sep first	3.9		Sep last	3.87		Sep. Now (ρ)	3.87"
Mag pri	6.20		Mag sec	14.90		delta mag (ΔM)	8.7		Spectral class	A3V (white)
Pri motion ra	+003		Sec motion ra
Pri motion dec	+037		Sec motion dec
Notes	K (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 Nature of this double is uncertain.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	RZ Cas	12445	02 48 56 +69 38 03	DRS 3 AB	2008	1	230	3.9	6.20	14.90	8.70		<===
Show		12445	02 48 56 +69 38 03	DRS 3 AC	2015	5	72	7.3	6.28	14.00	7.72

Triple system
3 estimated visually detectable stars in this system

Var name	RZ Cas		Constellation	Cassiopeia		SAO	12445		HIP	13133
Tycho2	4317-01793-1		Gaia DR2	541801332594262912		HD	17138		HR	815
GC	3345		BD	BD+69 179		Distance	64.77		Distance ly	211.28