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Current system

13239+5456
SHY 247 AE

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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

13239+5456 SHY 247 AE

13^h 23^m 55.42^s +54° 55' 31.5" P.A. 321.00 sep 999.9 mag 2.23,6.88 Sp A2V+G1Va dist. 26.31 pc (85.82 l.y.)

Coord 2000	13239+5456		Discov num	SHY 247		Comp	AE		Coord arcsec 2000	13 23 55.42 +54 55 31.5
Date first	1991		Date last	1999		Obs	3
Pa first	321		Pa last	321		P.A. Now (θ)	321°
Sep first	999.9		Sep last	8277.84		Sep. Now (ρ)	8277.84"
Mag pri	2.23		Mag sec	6.88		delta mag (ΔM)	4.65		Spectral class	A2V+G1Va (white/yellow)
Pri motion ra	+121		Sec motion ra	+113
Pri motion dec	-022		Sec motion dec	-020
Notes	N V (See Notes, Proper motion indicates physical)

rPM=0.067 (< 0.3, Physical double)

This double is physical.

13239+5456 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		28737	13 23 55 +54 55 32	PEA 1 Aa,Ab	2004	63	34	0.0	3.00	3.00	0.00	Y
Show	Mizar	28737	13 23 55 +54 55 32	STF 1744 AB	2022	501	153	14.4	2.23	3.88	1.65
Show		28737	13 23 55 +54 55 32	STF 1744 AC	2020	15	73	715.5	2.23	4.01	1.78
Show		28737	13 23 55 +54 55 32	SMR 4 AD	2020	11	103	498.1	2.23	7.62	5.39
Show		28737	13 23 55 +54 55 32	SHY 247 AE	1999	3	321	999.9	2.23	6.88	4.65		<===
Show		28737	13 23 55 +54 55 32	SHY 247 AF	1999	3	359	999.9	2.23	9.86	7.63
Show	Alcor	28751	13 25 14 +54 59 17	PSF 1 Ca,Cb	2009	5	207	1.0	4.01	8.00	3.99
Show	Alcor	28751	13 25 14 +54 59 17	SHY 248 CE	1999	3	317	999.9	4.01	6.88	2.87
Show	Alcor	28751	13 25 14 +54 59 17	SHY 248 CF	1999	3	355	999.9	4.01	9.86	5.85
Show	Alcor	28751	13 25 14 +54 59 17	SHY 248 CG	1999	3	271	999.9	4.01	8.21	4.20
Show	Alcor	28751	13 25 14 +54 59 17	SHY 248 CH	1999	3	243	999.9	4.01	8.63	4.62

Decuple system
10 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Common name	Mizar		Var name	NSV6224 UMa		Constellation	Ursa Major		SAO	28737
HIP	65378		Tycho2	3850-01385-1		Gaia DR2	1563590579345330944		HD	116656
HR	5054		GC	18133		ADS	8891		BD	BD+55 1598
Bayer	Zeta Ursae Majoris		Bayer name	Zet UMa		Flamsteed	79 Ursae Majoris		Flamsteed name	79 UMa
FK5	497		Distance	26.31		Distance ly	85.82		Bayer greek	ζ UMa

Other names

Mizat, Mirza, Mitsar

Meaning

bandage (thong)