09207+5116 ARN 71 AD

Coord 2000	09207+5116		Discov num	ARN  71		Comp	AD		Coord arcsec 2000	09 20 43.76 +51 15 57.8
Date first	1903		Date last	2015		Obs	19
Pa first	51		Pa last	51.4		P.A. Now (θ)	51.4°
Sep first	231.7		Sep last	230.748		Sep. Now (ρ)	230.748"
Mag pri	6.19		Mag sec	7.89		delta mag (ΔM)	1.7		Spectral class	F3V (yellow-white)
Pri motion ra	-036		Sec motion ra	-037
Pri motion dec	+145		Sec motion dec	+140
Notes	N V U (See Notes, Proper motion indicates physical, Proper motion indicates non-physical)

rPM=0.034 (< 0.3, Physical double) This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	37 Lyn	27215	09 20 44 +51 15 58	STT 199 AB	2020	39	142	5.4	6.19	10.00	3.81
Show		27215	09 20 44 +51 15 58	STT 199 AC	2015	25	7	127.4	6.19	10.66	4.47
Show		27215	09 20 44 +51 15 58	ARN 71 AD	2015	19	51	230.7	6.19	7.89	1.70		<===

Quadruple system
4 estimated visually detectable stars in this system

Constellation	Ursa Major		SAO	27215		HIP	45836		Tycho2	3431-01099-1
Gaia DR2	1019361632454363904		HD	80290		HR	3697		GC	12865
ADS	7303		BD	BD+51 1495		Flamsteed	37 Lyncis		Flamsteed name	37 Lyn
Distance	27.45		Distance ly	89.54

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