09006+4147 STT 566 AB,C (10 UMa)

Coord 2000	09006+4147		Discov num	STT 566		Comp	AB,C		Coord arcsec 2000	09 00 38.42 +41 46 57.6
Date first	1851		Date last	2004		Obs	17
Pa first	206		Pa last	184		P.A. Now (θ)	184°
Sep first	150.3		Sep last	99.74		Sep. Now (ρ)	99.74"
Mag pri	4.03		Mag sec	10.36		delta mag (ΔM)	6.33		Spectral class	F3V (yellow-white)
Pri motion ra	-382		Sec motion ra	-034
Pri motion dec	-270		Sec motion dec	-017
Notes	N L U (See Notes, Linear solution, Proper motion indicates non-physical)

rPM=0.92 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		42642	09 00 38 +41 46 58	KUI 37 AB	2017	270	144	0.5	4.18	6.48	2.30	Y
Show	10 UMa	42642	09 00 38 +41 46 58	STT 566 AB,C	2004	17	184	99.7	4.03	10.36	6.33		<===
Show		42642	09 00 38 +41 46 58	BUP 122 AB,D	2013	9	104	173.0	4.03	12.08	8.05
Show		42642	09 00 38 +41 46 58	STT 566 AB,E	2012	10	101	260.4	4.03	11.19	7.16

Quintuple system
6 estimated visually detectable stars in this system

Name	10 UMa		Constellation	Lynx		SAO	42642		HIP	44248
Tycho2	2986-01978-1		HD	76943		HR	3579		GC	12434
GL	Gl 332A		BD	BD+42 1956		Flamsteed	10 Ursae Majoris		Flamsteed name	10 UMa
FK5	339		Distance	16.07		Distance ly	52.42

Bayer or Flamsteed indentifiers not always match the correct constellation because of procession and proper motion of the star. (UMa vs Lyn)