15289+5727 FOX 189 AC

Coord 2000	15289+5727		Discov num	FOX 189		Comp	AC		Coord arcsec 2000	15 28 51.93 +57 26 42.6
Date first	1913		Date last	2003		Obs	3
Pa first	359		Pa last	18.6		P.A. Now (θ)	18.6°
Sep first	77.1		Sep last	65.523		Sep. Now (ρ)	65.523"
Mag pri	6.96		Mag sec	13.34		delta mag (ΔM)	6.38		Spectral class	F7V (yellow-white)
Pri motion ra	-261		Sec motion ra	+003
Pri motion dec	+165		Sec motion dec	+010
Notes	N U (See Notes, Proper motion indicates non-physical)

rPM=0.991 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 138367	29542	15 28 52 +57 26 43	BU 945 AB	2017	13	101	40.2	6.96	12.42	5.46
Show		29542	15 28 52 +57 26 43	FOX 189 AC	2003	3	19	65.5	6.96	13.34	6.38		<===
Show		29542	15 28 52 +57 26 43	GIC 128 AD	2020	15	132	185.4	6.96	11.81	4.85

Quadruple system
4 estimated visually detectable stars in this system

Constellation	Draco		SAO	29542		HIP	75783		Tycho2	3872-01044-1
Gaia DR2	1602402034136426752		HD	138367		BD	BD+57 1590		Distance	44.5
Distance ly	145.16

discov_num	notes	refcode
GIC 128	LDS2722. D component = G224-069. Giclas says B component is not
	physical but D is CPM companion.
BU 945	AB: Optical pair, based on study of relative motion of the components
	using the method of apparent motion parameters.	Kiy2008
	AD: NLTT 40385/40401	Chm2004

refcode	metd	author	reference
Chm2004	E -	Chaname, J. & Gould, A.	2004ApJ...601..289C
Chm2004		ApJ 601, 289, 2004
Chm2004		(Photometry, coordinates, and astrometry from rNLTT. Astrometry from early
Chm2004		versions of 2MASS and UCAC, with date given only as "circa 2000". Measures
Chm2004		identical to discovery observations - predominantly close pairs - were assumed
Chm2004		not new observations, so not included in WDS. Similar concerns when primary and
Chm2004		secondary magnitudes or proper motions were the same.)
Kiy2008	-	Kiyaeva, O.V., Kiselev, A.A. & Izmailov, I.S.	2008SvAL...32..405K
Kiy2008		SvAL 34, 405, 2008

idgroup	discov	author
1	BU	Burnham, S.W. (BU 1 - 81)
179	FOX	Fox, P.
190	GIC	Giclas, H., Burnham, R. & Thomas, N.

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
15289+5727	FOX 189	AC	1999	2	18	65.5	6.92	12.00		D	152851.93+572642.6
15289+5727	FOX 189	AC	2003	3	19	65.5	6.92	12.00		N D	152851.93+572642.6

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Radius: auto 0.5" 0.8" 1" 2" 3" 5" 10" 15" 20" 25" 30" 35" 40" 45" 50" 55" 1' 2' 3' 4' 5' 6' 7' 8' 9' 10' 15' 20' 30' 40' 50' 1° 2° 4° 5° 8° Components only

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS