00393+3052 BU  491AB (Del And)

Coord 2000	00393+3052		Discov num	BU  491		Comp	AB		Coord arcsec 2000	00 39 19.60 +30 51 40.4
Date first	1878		Date last	2015		Obs	18
Pa first	299		Pa last	299		P.A. Now (θ)	299°
Sep first	27.9		Sep last	28.9		Sep. Now (ρ)	28.9"
Mag pri	3.25		Mag sec	12.44		delta mag (ΔM)	9.19		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_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		54058	00393+3052	BTM 1	Aa,Ab	2014	2014	1	56	0.4	3.28	10.00	6.72	Y
Show	Del And	54058	00393+3052	BU 491	AB	1878	2015	18	299	28.9	3.25	12.44	9.19		<===
Show		54058	00393+3052	BU 491	AC	1910	2012	5	104	32.2	3.25	15.70	12.45

Quadruple system
3 visible stars in this system

Precise pa	299.4		Precise sep	28.928		Name	Del And		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	AB	2007	13	299	28.9	3.25	12.44	K3III	N D	003919.60+305140.4
00393+3052	BU 491	AB	2012	14	300	29.4	3.25	12.44	K3III	N D	003919.60+305140.4
00393+3052	BU 491	AB	2015	15	299	28.9	3.25	12.44	K3III	N	003919.60+305140.4

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