02300+5715 BU 1172AC

Coord 2000	02300+5715		Discov num	BU 1172		Comp	AC		Coord arcsec 2000	02 30 02.47 +57 14 56.1
Date first	1908		Date last	2015		Obs	11
Pa first	20		Pa last	19		P.A. Now (θ)	19°
Sep first	38.6		Sep last	38.8		Sep. Now (ρ)	38.8"
Mag pri	8.70		Mag sec	10.56		delta mag (ΔM)	1.86		Spectral class	B1IV (blue-white)
Pri motion ra	+001		Sec motion ra	-001
Pri motion dec	+000		Sec motion dec	-001
Notes

rPM=1.581 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		23376	02300+5715	BU 1172	AB	1890	1967	8	237	1.7	8.70	11.10	2.40
Show		23376	02300+5715	BU 1172	AC	1908	2015	11	19	38.8	8.70	10.56	1.86		<===
Show			02300+5715	DAM 751	CD	2000	2015	4	36	6.8	10.60	14.70	4.10
Show			02300+5715	DAM 751	DE	2000	2015	3	89	3.1	14.70	15.20	0.50

Quintuple system
5 visible stars in this system

Precise pa	18.7		Precise sep	38.8		Constellation	Perseus		SAO	23376
Tycho2	3695-01753-1		HD	15325		last precise pa	18.7		last precise sep	38.8

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
02300+5715	BU 1172	AC	2003	8	19	38.5	8.70	10.56		D	023002.47+571456.1
02300+5715	BU 1172	AC	2015	10	19	38.8	8.70	10.56	B1IV		023002.47+571456.1

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