01508+5939 MLB  47AB

Coord 2000	01508+5939		Discov num	MLB  47		Comp	AB		Coord arcsec 2000	01 50 50.91 +59 38 11.0
Date first	1918		Date last	2015		Obs	4
Pa first	174		Pa last	180		P.A. Now (θ)	180°
Sep first	2.4		Sep last	2.2		Sep. Now (ρ)	2.2"
Mag pri	10.29		Mag sec	12.30		delta mag (ΔM)	2.01		Spectral class	B9 (blue-white)
Pri motion ra	+000		Sec motion ra
Pri motion dec	+016		Sec motion dec
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			01508+5939	MLB 47	AB	1918	2015	4	180	2.2	10.29	12.30	2.01		<===
Show			01508+5939	MLB 47	AC	1902	2015	10	130	37.0	10.29	11.20	0.91
Show			01508+5939	MLB 47	CD	1918	2015	7	299	5.2	11.20	12.50	1.30

Quadruple system
4 visible stars in this system

Precise pa	180.1		Precise sep	2.247		Constellation	Cassiopeia		Tycho2	3696-02076-1
Gaia DR2	5664156800

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
01508+5939	MLB 47	AB	2005	3	180	2.3	10.00	12.30			015050.90+593810.9
01508+5939	MLB 47	AB	2015	4	180	2.2	10.29	12.30	B9		015050.91+593811.0

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