12154+5243 MLR 681AB

Coord 2000	12154+5243		Discov num	MLR 681		Comp	AB		Coord arcsec 2000	12 15 26.78 +52 43 02.0
Date first	1984		Date last	1991		Obs	5
Pa first	141		Pa last	19		P.A. Now (θ)	19°
Sep first	0.1		Sep last	0.2		Sep. Now (ρ)	0.2"
Mag pri	8.20		Mag sec	8.20		delta mag (ΔM)	0		Spectral class	K0 (yellow-orange)
Pri motion ra	-005		Sec motion ra
Pri motion dec	-011		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		28316	12154+5243	MLR 681	AB	1984	1991	5	19	0.2	8.20	8.20	0.00		<===
Show		28316	12154+5243	LDS3041	AB,C	1960	2000	3	230	123.6	7.70	17.10	9.40

Triple system
4 visible stars in this system

Constellation	Ursa Major		SAO	28316		HIP	59777		Tycho2	3834-00133-1
HD	106605		BD	BD+53 1535		Distance	259.74		Distance ly	847.27
last precise pa	19.1		last precise sep	0.16

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
12154+5243	MLR 681	AB	1991	5	19	0.2	8.20	8.20	K0		121526.78+524302.0

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