14390+6417 KON 1 (EK Dra)

14^h 39^m 00.21^s +64° 17' 29.9" P.A. 170.00 sep 0.8 mag 6.00,8.90 Sp G0V+M2 dist. 34.13 pc (111.33 l.y.)

Coord 2000	14390+6417	Discov num	KON 1	Comp		Coord arcsec 2000	14 39 00.21 +64 17 29.9
Date first	1991	Date last	2009	Obs	16
Pa first	174	Pa last	170	P.A. Now (θ)	170°
Sep first	0.3	Sep last	0.764	Sep. Now (ρ)	0.764"
Mag pri	6.00	Mag sec	8.90	delta mag (ΔM)	2.9	Spectral class	G0V+M2 (yellow/red)
Pri motion ra	-139	Sec motion ra
Pri motion dec	-012	Sec motion dec
Notes	N O K (See Notes, Orbital solution, 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

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Var name	EK Dra	Constellation	Draco	HIP	71631	Tycho2	4176-00540-1
Gaia DR2	1668690628102524672	HD	129333	GL	Gl 559.1	BD	BD+64 1017
Distance	34.13	Distance ly	111.33

ORBITAL ELEMENTS

Period (P)	45y	± 5	Periastron (T)	46960d (1987.448y)	± 30	Semi-major axis (a)	0.412a	± 0.015
Eccentricity (e)	0.82	± 0.03	Inclination (i)	95°	± 3	Longitude of periastron (ω)	180°	± 10
Node (Ω)	172°	± 1	Notes	n		Reference	Kng2005
Equinox			Last observation	2002		Grade	5	(1=Definitive, 9=Indet.)

label	theta	rho
2000	173.4	0.625
2001	173.2	0.650
2002	173.0	0.671
2003	172.9	0.690
2004	172.7	0.706
2005	172.6	0.720
2006	172.5	0.731
2007	172.4	0.739
2008	172.2	0.745
2009	172.1	0.749
2010	172.0	0.750
2011	171.9	0.748
2012	171.8	0.745
2013	171.6	0.739
2014	171.5	0.730
2015	171.4	0.719
2016	171.2	0.705
2017	171.1	0.688
2018	171.0	0.669
2019	170.8	0.647
2020	170.6	0.622
2021	170.4	0.594
2022	170.2	0.562
2023	170.0	0.527
2024	169.8	0.488
2025	169.4	0.445
2026	169.1	0.396
2027	168.6	0.343
2028	167.9	0.282
2029	166.7	0.214
2030	164.4	0.136

Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.

Measures: green=micrometric, blue=interferometric, purple=photographic

WDS 14390+6417 KON 1 (EK Dra) : NOTES

discov_num	notes	refcode
KON 1	Koenig et al. (2005) calculate combined speckle/spectroscopic orbital	Kng2005
	solution and derive masses of 0.9 +/- 0.1 and 0.5 +/- 0.1 Msun for the
	primary and secondary, respectively. The primary is the young active
	variable EK Dra.

REFERENCES

refcode	metd	author	reference
Kng2005	S u	Koenig, B., Guenther, E.W., Woitas, J., & Hatzes, A.P.	2005A&A...435..215K
Kng2005		A&A 435, 215, 2005

DISCOVERER

idgroup	discov	author
1	KON	Konopacky, Q.M., Ghez, A.M., Duchene, G., McCabe, C., & Macintosh, B.A.
5	KON	Konopacky, Q.M., Ghez, A.M., Barman, T.S., Rice, E.L., Bailey, III, J.I.,
5	KON	White, R.J., McLean, I.S., & Duchene, G.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
14390+6417	KON 1		2003	11	173	0.7	7.61	10.00	F8V	NOD	143900.21+641729.9
14390+6417	KON 1		2005	14	176	0.7	7.61	10.00	F8V	NOD	143900.21+641729.9
14390+6417	KON 1		2009	16	170	0.8	6.00	8.90	F8V	NODK	143900.21+641729.9

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WDS 14390+6417 KON 1 (EK Dra) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 14390+6417 KON 1 (EK Dra) : MEASURES

No records found.

WDS 14390+6417 (EK Dra) : VIRTUAL EYEPIECE

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WDS 14390+6417 (EK Dra) : ALADIN DSS IMAGE @ 14^h 39^m 00.21^s +64° 17' 29.9"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 14390+6417 KON 1 (EK Dra) : NEIGHBORHOODS

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Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		14390+6417	KON 1		170	0.8	1
Show		14430+6410	HDS2073		241	0.6	28
Show		14350+6355	LDS2345		156	10.4	35
Show		14358+6452	BVD 323		283	16.0	41
Show		14465+6339	SHN 193		-1	0.1	63
Show		14461+6329	MNK 3		278	24.7	68
Show		14468+6333	TDS9303		261	0.5	68
Show		14499+6435	LDS2350		161	22.2	73
Show		14283+6349	LDS2343		306	19.6	76
Show		14474+6321	STI 775		171	8.3	80
Show		14277+6453	MLR 169		217	2.2	82
Show		14305+6544	LDS2344		151	4.0	103
Show		14232+6356	MLB 352		309	5.4	107
Show		14433+6600	FYM 646		279	15.5	107
Show		14424+6603	GKI 4		92	2.2	108
Show		14334+6236	LDS2711		170	3.2	109
Show		14437+6234	STI 773		337	47.7	109
Show		14452+6237	SLW1028		322	177.0	109
Show		14274+6256	MLB 353		100	3.5	110
Show		14520+6308	RAO 321		124	0.4	111
Show		14519+6307	SKF2180	AB	212	3.6	112
Show		14519+6539	TDS9329		250	0.6	116
Show		14531+6534	MLR 175		196	0.2	119
Show		14414+6210	HDS2070	AB	310	0.5	129
Show		14191+6452	JNN 145		40	5.0	133
Show		14585+6515	TDS9354		357	1.5	137
Show		14475+6210	KR 43		212	2.7	141
Show		14481+6636	HU 1152		48	1.0	150
Show		14224+6616	BVD 107		232	38.4	159
Show		14219+6216	STF3084	AB	15	30.5	168
Show		14219+6216	OPI 19	AC	340	49.9	168
Show		14457+6701	LDS2349		64	61.2	169
Show		14545+6205	KPP3939		151	1.5	169
Show		14237+6156	STF1845		311	44.1	176
Show		14330+6120	KPP 319		24	3.7	183
Show		14421+6116	STF1878		314	4.2	183
Show		14408+6109	STI 769		289	13.6	189
Show		14343+6111	STI 767		148	6.0	190
Show		14585+6158	STI 779		179	5.6	192
Show		14441+6106	STF1882	AB		11.3	195
Show		14441+6106	STF1882	AC	37	7.2	195
Show		14510+6718	LDS2351		6	11.1	196
Show		14334+6731	AZC 170		69	22.9	197
Show		14331+6101	CRC 70		252	1.0	201
Show		14494+6733	MLR 173		347	0.3	206
Show		14377+6746	RAO 318		115	0.8	209
Show		14244+6738	FYM 644		38	7.9	220
Show		14464+6753	DAM1451		200	3.8	221
Show		14237+6103	HU 1150		257	1.4	221
Show		14322+6755	MLR 172		235	1.5	222
Show		14552+6738	UC 2871		197	52.1	224

WDS 14390+6417 : COMPONENTS

	A
B	pa=175.6° sep=0.75"

14390+6417 A

Componente originario normalizzato	AB		Name	EK Dra		Coord arcsec 2000	143900.21+641729.9		Mag	6
Spectral class	G0V (yellow)		PmRA	-139.00		PmDE	-12.0

14390+6417 B

Componente originario normalizzato	AB		Coord arcsec 2000	143900.22+641729.1		Mag	8.9		Spectral class	M2 (red)
Calc delta mag	2.9		Calc coord	yes