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Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

14044+6423 NOI 4 (Thuban)

14^h 04^m 23.35^s +64° 22' 33.1" P.A. 248.00 sep 0.0 mag 3.65, Sp A0III dist. 92.94 pc (303.17 l.y.)

Coord 2000	14044+6423	Discov num	NOI 4	Comp		Coord arcsec 2000	14 04 23.35 +64 22 33.1
Date first	2013	Date last	2013	Obs	4
Pa first	256	Pa last	247.5	P.A. Now (θ)	247.5°
Sep first	0.0	Sep last	0.005	Sep. Now (ρ)	0.005"
Mag pri	3.65	Mag sec		delta mag (ΔM)		Spectral class	A0III (white)
Pri motion ra	-056	Sec motion ra
Pri motion dec	+017	Sec motion dec
Notes	N O (See Notes, Orbital solution)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Common name	Thuban	Var name	NSV6546 Dra	Constellation	Draco	SAO	16273
HIP	68756	Tycho2	4174-01262-1	Gaia DR2	1667976701458550400	HD	123299
HR	5291	GC	19019	BD	BD+65 978	Bayer	Alpha Draconis
Bayer name	Alp Dra	Flamsteed	11 Draconis	Flamsteed name	11 Dra	FK5	521
Distance	92.94	Distance ly	303.17	Bayer greek	α Dra

ORBITAL ELEMENTS

Period (P)	51.4167d		Periastron (T)	45117.375d (1982.403y)		Semi-major axis (a)	1.46m	± 0.68
Eccentricity (e)	0.4		Inclination (i)	131.78°	± 25.4	Longitude of periastron (ω)	23.2°
Node (Ω)	241.14°	± 18.91	Notes	n		Reference	HIP1997d
Equinox			Last observation	1991		Grade	9	(1=Definitive, 9=Indet.)

label	theta	rho
2000-01-01	224.2	0.001
2001-01-01	132.5	0.001
2002-01-01	87.2	0.001
2003-01-01	68.4	0.002
2004-01-01	55.2	0.002
2005-01-01	42.8	0.002
2006-01-01	27.9	0.002
2007-01-01	5.3	0.001
2008-01-01	323.2	0.001
2009-01-01	263.9	0.001
2010-01-01	196.2	0.001
2011-01-01	110.5	0.001
2012-01-01	79.4	0.002
2013-01-01	63.5	0.002
2014-01-01	51.0	0.002
2015-01-01	38.1	0.002
2016-01-01	21.4	0.002
2017-01-01	353.7	0.001
2018-01-01	303.1	0.001
2019-01-01	244.0	0.001
2020-01-01	161.2	0.001
2021-01-01	96.2	0.001
2022-01-01	73.2	0.002
2023-01-01	59.1	0.002
2024-01-01	46.8	0.002
2025-01-01	33.0	0.002
2026-01-01	13.7	0.001
2027-01-01	339.2	0.001
2028-01-01	282.2	0.001
2029-01-01	221.7	0.001
2030-01-01	129.9	0.001

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

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

WDS 14044+6423 NOI 4 (Thuban) : NOTES

discov_num	notes	refcode
NOI 4	HR 5291 = 11 alp Dra = Thuban.
	Hipparcos astrometric solution adopted some elements from the orbit of	HIP1997d
	Elst & Nelles (1983).	Est1983
	This pair is also a spectroscopic binary.	Mug2017b

REFERENCES

refcode	metd	author	reference
Est1983	-	Elst, E.W. & Nelles, B.	1983A&AS...53..215E
Est1983		A&AS 53, 215, 1983
HIP1997d	orb -	Hipparcos	1997yCat.1239....0E
HIP1997d		Hipparcos Catalog, ESA SP-1200, 1997
HIP1997d		(DMSA/O Orbital Solutions)
Mug2017b	not -	Bischoff, R., Mugrauer, M., Zehe, T., Wockel, D., Pannicke, A., Lux, O.,	2017AN....338..671B
Mug2017b		Wagner, D., Heyne, T., Adam, C. & Neuhauser, R.
Mug2017b		AN 338, 671, 2017

DISCOVERER

idgroup	discov	author
1	NOI	Benson, J.A., Hutter, D.J., Elias, N.M., Bowers, P.F., Johnston, K.J.,
1	NOI	Hajian, A.R., Armstrong, J.T., Mozurkewich, D., et al.
2	NOI	Hummel, C.A., Mozurkewich, D., Armstrong, J.T., Hajian, A.R., Elias, N.M., &
2	NOI	Hutter, D.J.
3	NOI	Nordgren, T.E., Germain, M.E., Benson, J.A., Mozurkewich, D., Sudol, J.J., Elias,
3	NOI	II, N.M., Hajian, A.R., White, N.M., Hutter, D.J., Johnston, K.J., Gauss, F.S.,
3	NOI	Armstrong, J.T., Pauls, T.A. & Rickard, L.J.
6	NOI	Armstrong, J.T., Nordgren, T.E., Germain, M.E., Hajian, A.R., Hindsley, R.B.,
6	NOI	Hummel, C.A., Mozurkewich, D. & Thessin, R.N.
9	NOI	Armstrong, J.T., Mozurkewich, D., Hajian, A.R., Johnston, K.J., Thessin, R.N.,
9	NOI	Peterson, D.M., Hummel, C.A., & Gilbreath, G.C.
10	NOI	Koubsky, P., Hummel, C.A., Harmanec, P., Tycner, C., van Leeuwen, F., Yang, S.,
10	NOI	Slechta, M., Bozic, H., Zavala, R.T., Ruzdjak, D., & Sudar, D.
12	NOI	Koubsky, P., Hummel, C.A., Harmanec, P., Yang, S., Bozic, H., Tycner, C., &
12	NOI	Zavala, R.T.
17	NOI	Che, X., Monnier, J.D., Tycner, C., Kraus, S., Zavala, R.T., Baron, F., Pedretti,
17	NOI	E., ten Brummelaar, T., McAlister, H., Ridgway, S.T., Sturmann, J., Sturmann, L.,
17	NOI	& Turner, N.
22	NOI	Hutter, D.J., Zavala, R.T., Tycner, C., Benson, J.A., Hummel, C.A., Sanborn, J.,
22	NOI	Franz, O.G., & Johnston, K.J.
23	NOI	Schaefer, G.H., Hummel, C.A., Gies, D.R., Zavala, R.T., Monnier, J.D.,
23	NOI	Walter, F.M., Turner, N.H., Baron, F., ten Brummelaar, T., Che, X.,
23	NOI	Farrington, C.D., Kraus, S., Sturmann, J., & Sturmann, L.
24	NOI	Baines, E.K., Armstrong, J.T., Schmitt, H.R., Zavala, R.T., Benson, J.A., Hutter,
24	NOI	D.J., Tycner, C. & van Belle, G.T.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
14044+6423	NOI 4		2013	4	248	0.0	3.65		A0III	NO	140423.35+642233.1

If you need more information about this double, apply for a data request form to the WDS.

WDS 14044+6423 NOI 4 (Thuban) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 14044+6423 NOI 4 (Thuban) : MEASURES

No records found.

WDS 14044+6423 (Thuban) : VIRTUAL EYEPIECE

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

WDS 14044+6423 (Thuban) : ALADIN DSS IMAGE @ 14^h 04^m 23.35^s +64° 22' 33.1"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 14044+6423 NOI 4 (Thuban) : 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	Thuban	14044+6423	NOI 4		248	0.0
Show		14026+6433	TDS 734		80	1.2	16
Show		14087+6438	SLW 971		36	125.0	33
Show		13598+6442	BVD 105		277	45.7	36
Show		14095+6458	KPP3278		74	1.5	49
Show		13566+6440	LDS2332		80	8.0	53
Show		14057+6517	LDS2335		203	50.0	55
Show		13571+6519	TDS9043		320	0.5	74
Show		14152+6504	LDS2340		8	22.2	82
Show		13514+6443	HJ 3342	AB	25	54.0	87
Show		13514+6443	HJ 3342	AC	61	88.9	87
Show		14069+6256	LDS2337		215	4.6	88
Show		13577+6544	UC 187		99	16.2	93
Show		14187+6409	MLR 168		88	0.3	95
Show		14183+6358	LDS2341		159	11.5	95
Show		14162+6325	CVR1571		143	4.8	97
Show		14174+6335	TDS9155		232	0.6	98
Show		13492+6419	LDS2328		323	8.9	99
Show		14191+6452	JNN 145		40	5.0	99
Show		13544+6301	LDS2330		205	6.1	103
Show		13528+6537	RAO 304		143	0.5	105
Show		14066+6613	MLR 166	AB	127	3.6	110
Show		14066+6613	MLR 166	AC	66	23.4	110
Show		13472+6401	SKF2605		79	34.2	115
Show		14174+6304	LDS1414		355	7.4	117
Show		14146+6240	LDS2339		85	37.0	123
Show		14232+6356	MLB 352		309	5.4	126
Show		14028+6216	MLR 136		29	5.6	127
Show		13520+6616	GRV1091		290	28.5	136
Show		14080+6209	LDS2701		170	40.2	137
Show		14004+6638	LDS2333		77	51.3	138
Show		14127+6218	LDS2338		286	5.4	138
Show		13460+6558	GRV1089		310	43.4	148
Show		14082+6156	LDS2702		200	14.8	149
Show		14008+6651	LDS2334		289	94.0	151
Show		14084+6652	UC 2689		340	17.7	152
Show		13594+6151	TDS 731		9	0.9	155
Show		14091+6656	WFC 146		209	5.6	157
Show		14224+6616	BVD 107		232	38.4	160
Show		13543+6651	LDS2331		34	4.0	162
Show		14025+6706	HU 1148		146	0.3	164
Show		14219+6216	STF3084	AB	15	30.5	174
Show		14219+6216	OPI 19	AC	340	49.9	174
Show		14122+6137	LDS2704		47	21.3	174
Show		13541+6138	LDS2687		356	55.7	180
Show		14172+6136	STI 763		319	4.2	188
Show		13485+6146	GRV1204		251	11.3	190
Show		13580+6117	LDS2692			86.1	191
Show		14055+6734	MLR 165		19	1.9	192
Show		13552+6123	LDS2688		255	6.4	192
Show		13586+6113	LDS2693	AB		87.6	196

WDS 14044+6423 : COMPONENTS

	A
B	pa=226.2° sep=0.00"

14044+6423 A

Componente originario normalizzato	AB	Common name	Thuban	Coord arcsec 2000	140423.35+642233.1	Mag	3.65
Spectral class	A0III (white)	PmRA	-56.00	PmDE	17.0	SAO	16273
HIP	68756	Tycho2	4174-01262-1	HD	123299	HR	5291
GC	19019	BD	BD+65 978	Bayer	Alpha Draconis	Bayer name	Alp Dra
Flamsteed	11 Draconis	Flamsteed name	11 Dra	FK5	521

Tycho2

Tycho2	4174-01262-1	Pflag	X	RAmdeg		DEmdeg
PmRA		PmDE		E RAmdeg		E DEmdeg
E pmRA		E pmDE		EpRAm		EpDEm
Num		Q RAmdeg		Q DEmdeg		Q pmRA
Q pmDE		BTmag	3.598	E BTmag	0.014	VTmag	3.628
E VTmag	0.009	Prox	999	TYC	T	HIP	68756
CCDM		RAdeg	211.09759694	DEdeg	64.37581194	EpRA 1990	1.65
EpDE 1990	1.68	E RAdeg	3.2	E DEdeg	3.2	Posflg
Corr	-0.1

SAO

SAO	16273	DelFlag		RA1950		PmRA1950	-0.009
DE1950		PmDE1950	0.015	Vmag	3.6	SpType	A0p
Double code		Source	74	CatNum	521	DM	BD+65 978
DMcomp		BDsup		HD	123299	M HD	0
GC	19019	RA1950rad	3.67842413	DE1950rad	1.12773269	PmRA2000	-0.0083
PmDE2000	0.018

Hipparcos

Catalog	H	HIP	68756	Proxy		RAhms	14 04 23.43
DEdms	+64 22 32.9	Vmag	3.67	VarFlag	1	R Vmag	H
RAdeg	211.098	DEdeg	64.3758	AstroRef	+	Plx	10.56
CCDM		N CCDM		Nsys		Ncomp	1
MultFlag	O	Source		Qual		M HIP
Theta		Rho		HD	123299	BD	BD+65 978
CD		CP		Dm number	+65 978	VIred	-0.08
SpType	A0III SB	R SpType		Coord arcsec 2000	140423.43+642232.9

Hipparcos 2

HIP	68756	Sn	75	So	4	Nc	1
RArad	3.6843483047	DErad	1.1235698204	Plx	10.76	PmRA	-56.34
PmDE	17.21	E RArad	0.14	E DErad	0.15	E Plx	0.17
E pmRA	0.15	E pmDE	0.15	Hpmag	3.6452	E Hpmag	0.0005
SHp	0.004	VA	0	BV	-0.049	E BV	0.005
VI	-0.08

CCDM

Ccdm	14044+6423	RComp		Comp	A	Note1
Note2	%	Discov num		DRAs	-0.64	DDEs	-26.9
R dRAs	82	Year		Theta		Rho
Obs	1	Vmag	3.7	Sp	A0	PmNote
PmRA	-57	PmDE	17	Dm number	+65 0978	Cat1	BD
Name2	+64 666	Cat2	AGK2/3	HD	123299	M HD
ADS BDS		M ADS BDS		N IDS		IDS
HIC	68756

14044+6423 B

Componente originario normalizzato

Coord arcsec 2000

140423.35+642233.1

Calc delta mag

3.65

Calc coord

yes