17387+6114 LAF 58 AC

Coord 2000	17387+6114		Discov num	LAF  58		Comp	AC		Coord arcsec 2000	17 38 39.66 +61 14 15.6
Date first	1998		Date last	2015		Obs	3
Pa first	235		Pa last	229.2		P.A. Now (θ)	229.2°
Sep first	8.7		Sep last	8.947		Sep. Now (ρ)	8.947"
Mag pri	7.20		Mag sec	16.40		delta mag (ΔM)	9.2		Spectral class	K7 (yellow-orange)
Pri motion ra	-031		Sec motion ra
Pri motion dec	+059		Sec motion dec
Notes	N K (See Notes, K-band or other infrared magnitudes)

Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes Nature of this double is uncertain.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			17 38 40 +61 14 16	HOM 1 Aa,Ab	2011	10	18	0.0	10.20	11.40	1.20	Y
Show			17 38 40 +61 14 16	LAF 58 AB	2005	1	319	4.1	7.20	18.20	11.00
Show			17 38 40 +61 14 16	LAF 58 AC	2015	3	229	8.9	7.20	16.40	9.20		<===
Show			17 38 40 +61 14 16	VVO 17 AD	2015	5	151	19.1	10.20	14.50	4.30

Quintuple system
4 estimated visually detectable stars in this system

Constellation	Draco		HIP	86346		Tycho2	4199-01286-1		Gaia DR2	1436001566431649792
HD	160934		Distance	33.12		Distance ly	108.04

discov_num	notes	refcode
HOM 1	Aa,Ab : A 3748-d spectroscopic orbit of this pair has been determined.	Grf2013f

refcode	metd	author	reference
Grf2013f	C -	Griffin, R.F.	2013Obs...133..322G
Grf2013f	+not	Observatory 133, 322, 2013

idgroup	discov	author
1	HOM	Hormuth, F., Brandner, W., Hippler, S., Janson, M., & Henning, T.
2	LAF	Lafreniere, D., Doyon, R., Marois, C., Nadeau, D., Oppenheimer, B.R., Roche, P.F.,
2	LAF	Rigaut, F., Graham, J.R., et al.
11	LAF	Lafreniere, D., Jayawardhana, R., Janson, M., Helling, C., Witte, S., &
11	LAF	Hauschildt, P.
14	VVO	Upgren, A.R.

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
17387+6114	LAF 58	AC	2005	1	233	8.9	10.18	20.00	K7	D	173839.66+611415.6
17387+6114	LAF 58	AC	2015	3	229	8.9	7.20	16.40	K7	N K	173839.66+611415.6

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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