00568+3830 HJ 1057AB (Mu And)

Coord 2000	00568+3830		Discov num	HJ 1057		Comp	AB		Coord arcsec 2000	00 56 45.10 +38 29 57.3
Date first	1878		Date last	2012		Obs	10
Pa first	314		Pa last	295		P.A. Now (θ)	295°
Sep first	37.3		Sep last	51.8		Sep. Now (ρ)	51.8"
Mag pri	3.87		Mag sec	12.90		delta mag (ΔM)	9.03		Spectral class	A5V (white)
Pri motion ra	+154		Sec motion ra
Pri motion dec	+037		Sec motion dec
Notes	N (See Notes)

Visually invisible, K-band or other infrared star 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	Mu And	54281	00568+3830	HJ 1057	AB	1878	2012	10	295	51.8	3.87	12.90	9.03		<===
Show		54281	00568+3830	HJ 1057	AC	1828	2012	13	151	28.5	3.87	11.40	7.53
Show		54281	00568+3830	HJ 1057	AD	1854	2012	11	39	260.0	3.87	11.04	7.17

Quadruple system
4 visible stars in this system

Precise pa	294.8		Precise sep	51.8		Name	Mu And		Constellation	Andromeda
SAO	54281		HIP	4436		Gaia DR2	9116189824		HD	5448
HR	269		GC	1122		BD	BD+37 175		Bayer	Mu Andromedae
Bayer name	Mu And		Flamsteed	37 Andromedae		Flamsteed name	37 And		Distance	39.78
Distance ly	129.76

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00568+3830	HJ 1057	AB	2007	7	296	51.4	3.87	12.90	A5V	N D	005645.10+382957.3
00568+3830	HJ 1057	AB	2011	9	297	52.2	3.87	12.90	A5V	N D	005645.10+382957.3
00568+3830	HJ 1057	AB	2012	10	295	51.8	3.87	12.90	A5V	N D	005645.10+382957.3

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