01581+4123 S   404AB

Coord 2000	01581+4123		Discov num	S   404		Comp	AB		Coord arcsec 2000	01 58 04.61 +41 23 09.5
Date first	1782		Date last	2015		Obs	34
Pa first	68		Pa last	84		P.A. Now (θ)	84°
Sep first	19.0		Sep last	29.2		Sep. Now (ρ)	29.2"
Mag pri	7.64		Mag sec	9.74		delta mag (ΔM)	2.1		Spectral class	G5 (yellow)
Pri motion ra	-040		Sec motion ra	+012
Pri motion dec	+026		Sec motion dec	+004
Notes	N L Y (See Notes, Linear solution, Parallax indicates components are non-physical)

This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		37658	01581+4123	S 404	AB	1782	2015	34	84	29.2	7.64	9.74	2.10		<===
Show			01581+4123	S 404	BC	1912	2007	5	101	82.5	9.74	14.00	4.26

Triple system
3 visible stars in this system

Constellation	Andromeda		SAO	37658		HIP	9172		Tycho2	2824-01923-1
HD	11926		BD	BD+40 411		Distance	31.26		Distance ly	101.97
last precise pa	84.3		last precise sep	29.247

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
01581+4123	S 404	AB	2007	26	83	28.8	7.64	9.74	G5	NLD	015804.61+412309.5
01581+4123	S 404	AB	2011	29	84	29.0	7.64	9.74	G5	NLD	015804.61+412309.5
01581+4123	S 404	AB	2012	32	83	28.9	7.64	9.74	G5	NL U	015804.61+412309.5
01581+4123	S 404	AB	2015	34	84	29.2	7.64	9.74	G5	NLUY	015804.61+412309.5

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