00581+6742 BLL   2AB

Coord 2000	00581+6742		Discov num	BLL   2		Comp	AB		Coord arcsec 2000	00 58 04.29 +67 41 52.0
Date first	1877		Date last	2012		Obs	6
Pa first	226		Pa last	225		P.A. Now (θ)	225°
Sep first	71.0		Sep last	67.9		Sep. Now (ρ)	67.9"
Mag pri	8.72		Mag sec	12.87		delta mag (ΔM)	4.15		Spectral class	M0 (red)
Pri motion ra	-005		Sec motion ra	+016
Pri motion dec	-004		Sec motion dec	+010
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		11496	00581+6742	BLL 2	AB	1877	2012	6	225	67.9	8.72	12.87	4.15		<===
Show		11496	00581+6742	AG 431	AC	1874	2012	14	342	158.8	8.72	9.13	0.41

Triple system
3 visible stars in this system

Constellation	Cassiopeia		SAO	11496		Tycho2	4296-01440-1		last precise pa	224.8
last precise sep	67.9

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00581+6742	BLL 2	AB	1999	4	226	68.6	8.72	12.00	M0	D	005804.29+674152.0
00581+6742	BLL 2	AB	2003	5	226	68.1	8.72	12.00	M0	D	005804.29+674152.0
00581+6742	BLL 2	AB	2012	6	225	67.9	8.72	12.00	M0	D	005804.29+674152.0

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