02470+4705 SIN   4AC

Coord 2000	02470+4705		Discov num	SIN   4		Comp	AC		Coord arcsec 2000	02 46 59.65 +47 05 02.6
Date first	1904		Date last	2002		Obs	4
Pa first	42		Pa last	43		P.A. Now (θ)	43°
Sep first	85.4		Sep last	85.0		Sep. Now (ρ)	85"
Mag pri	9.61		Mag sec	13.09		delta mag (ΔM)	3.48		Spectral class	A0 (white)
Pri motion ra	+005		Sec motion ra	+001
Pri motion dec	-006		Sec motion dec	-001
Notes

rPM=0.82 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			02470+4705	AG 50	AB	1895	2016	16	5	11.6	9.61	10.15	0.54
Show			02470+4705	SIN 4	AC	1904	2002	4	43	85.0	9.61	13.09	3.48		<===
Show			02470+4705	SIN 4	AD	1989	2002	3	289	107.7	9.61	14.65	5.04

Quadruple system
4 visible stars in this system

Precise pa	42.5		Precise sep	84.955		Constellation	Perseus		Tycho2	3300-02599-1
HD	17180		last precise pa	42.5		last precise sep	84.955

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
02470+4705	SIN 4	AC	1998	3	43	85.0	9.61	13.30	A0	D	024659.65+470502.6
02470+4705	SIN 4	AC	2002	4	43	85.0	9.61	13.30	A0	D	024659.65+470502.6

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