00091+4051 BU  483AC

Coord 2000	00091+4051		Discov num	BU  483		Comp	AC		Coord arcsec 2000	00 09 03.67 +40 50 34.3
Date first	1879		Date last	2015		Obs	20
Pa first	261		Pa last	268		P.A. Now (θ)	268°
Sep first	144.0		Sep last	158.5		Sep. Now (ρ)	158.5"
Mag pri	7.04		Mag sec	7.66		delta mag (ΔM)	0.62		Spectral class	K0IV (yellow-orange)
Pri motion ra	+126		Sec motion ra	-009
Pri motion dec	-172		Sec motion dec	-012
Notes

rPM=0.025 (< 0.3, Physical double) This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			00091+4051	BU 483	AB	1878	1933	9	40	2.5	7.04	11.50	4.46
Show			00091+4051	BU 483	AC	1879	2015	20	268	158.5	7.04	7.66	0.62		<===
Show			00091+4051	BU 483	AD	1903	2010	8	275	227.1	7.04	10.44	3.40
Show			00091+4051	BU 483	CD	1903	2015	12	282	72.7	7.66	10.44	2.78

Quadruple system
4 visible stars in this system

Spectr	F4V		Constellation	Pisces		HIP	538		Tycho2	0007-01005-1
Distance	66.71		Distance ly	217.61		last precise pa	268.4		last precise sep	158.502

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00091+4051	BU 483	AC	2001	10	267	156.0	7.04	7.66	G5	D	000903.67+405034.3
00091+4051	BU 483	AC	2010	11	270	158.0	7.04	7.66	G5	D	000903.67+405034.3
00091+4051	BU 483	AC	2012	19	269	158.2	7.04	7.66	K0IV		000903.67+405034.3
00091+4051	BU 483	AC	2015	20	268	158.5	7.04	7.66	K0IV		000903.67+405034.3

If you need more information about this double, apply for a data request form to the WDS.