00104+5831 BU  253Ba,Bb

Coord 2000	00104+5831		Discov num	BU  253		Comp	Ba,Bb		Coord arcsec 2000	00 10 24.70 +58 31 25.9
Date first	1875		Date last	2008		Obs	39
Pa first	50		Pa last	32		P.A. Now (θ)	32°
Sep first	0.4		Sep last	0.4		Sep. Now (ρ)	0.4"
Mag pri	8.94		Mag sec	9.03		delta mag (ΔM)	0.09		Spectral class	A5 (white)
Pri motion ra	-008		Sec motion ra	-008
Pri motion dec	-006		Sec motion dec	-006
Notes

Nature of this double is uncertain.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		21161	00104+5831	ARY 7	AB	1910	2012	15	4	124.2	7.79	8.34	0.55
Show		21161	00104+5831	KPP4344	AC	2000	2015	2	92	4.3	8.50	12.60	4.10
Show		21160	00104+5831	BU 253	Ba,Bb	1875	2008	39	32	0.4	8.94	9.03	0.09		<===

Quadruple system
3 visible stars in this system

Precise pa	32.2		Precise sep	0.395		Constellation	Cassiopeia		SAO	21160
Tycho2	3664-01578-1		HD	570

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00104+5831	BU 253	Ba,Bb	2001	37	23	0.4	8.94	9.03	A5		001024.70+583125.9
00104+5831	BU 253	Ba,Bb	2008	39	32	0.4	8.94	9.03	A5		001024.70+583125.9

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