00393+3052 BU  491AC

Coord 2000	00393+3052		Discov num	BU  491		Comp	AC		Coord arcsec 2000	00 39 19.60 +30 51 40.4
Date first	1910		Date last	2012		Obs	5
Pa first	111		Pa last	104		P.A. Now (θ)	104°
Sep first	47.5		Sep last	32.2		Sep. Now (ρ)	32.2"
Mag pri	3.25		Mag sec	15.70		delta mag (ΔM)	12.45		Spectral class	K3III (yellow-orange)
Pri motion ra	+114		Sec motion ra
Pri motion dec	-084		Sec motion dec
Notes	N (See Notes)

Nature of this double is uncertain.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		54058	00 39 20 +30 51 40	BTM 1 Aa,Ab	2014	1	56	0.4	3.28	10.00	6.72	Y
Show	Del And	54058	00 39 20 +30 51 40	BU 491 AB	2015	18	299	28.9	3.25	12.44	9.19
Show		54058	00 39 20 +30 51 40	BU 491 AC	2012	5	104	32.2	3.25	15.70	12.45		<===

Quadruple system
3 visible stars in this system

Precise pa	104.4		Precise sep	32.2		Constellation	Andromeda		SAO	54058
HIP	3092		Tycho2	2275-01753-1		Gaia DR2	2858629802997462272		HD	3627
HR	165		GC	774		BD	BD+30 91		Bayer	Delta Andromedae
Bayer name	Del And		Flamsteed	31 Andromedae		Flamsteed name	31 And		Distance	32.35
Distance ly	105.53

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00393+3052	BU 491	AC	2007	3	105	35.4	3.25	15.70		N D	003919.60+305140.4
00393+3052	BU 491	AC	2012	5	104	32.2	3.25	15.70		N D	003919.60+305140.4

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