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14411+1344
STF1865AB
Zet Boo

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

14411+1344 STF1865AB (Zet Boo)

14^h 41^m 08.92^s +13° 43' 42.0" P.A. 280.00 sep 0.2 mag 4.46,4.55 Sp A0V+A0V dist. 53.88 pc (175.76 l.y.)

Coord 2000	14411+1344		Discov num	STF1865		Comp	AB		Coord arcsec 2000	14 41 08.92 +13 43 42.0
Date first	1796		Date last	2020		Obs	759
Pa first	312		Pa last	278		P.A. Now (θ)	280°
Sep first	1.0		Sep last	0.2		Sep. Now (ρ)	0.24"
Mag pri	4.46		Mag sec	4.55		delta mag (ΔM)	0.09		Spectral class	A0V+A0V (white/white)
Pri motion ra	+066		Sec motion ra	+066
Pri motion dec	-021		Sec motion dec	-021
Notes	N O (See Notes, Orbital solution)

This double is physical.

14411+1344 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	Zet Boo	101145	14 41 09 +13 43 42	STF 1865 AB	2020	759	280	0.2	4.46	4.55	0.09	Y	<===
Show		101145	14 41 09 +13 43 42	H 6 104 AB,C	2020	18	259	104.3	4.52	10.98	6.46

Triple system
4 visible stars in this system

OTHER CATALOGS AND DESIGNATIONS

Precise pa	277.6		Precise sep	0.22		Name	Zet Boo		Constellation	Bootes
SAO	101145		HIP	71795		Tycho2	0917-01471-1		HD	129246
HR	5477		GC	19777		ADS	9343		BD	BD+14 2770
Bayer	Zeta Bootis		Bayer name	Zet Boo		Flamsteed	30 Bootis		Flamsteed name	30 Boo
Distance	53.88		Distance ly	175.76		last precise pa	277.6		last precise sep	0.22

ORBITAL ELEMENTS

Period (P)	125.24y		Periastron (T)	1898.58y		Semi-major axis (a)	0.825a
Eccentricity (e)	0.98		Inclination (i)	126°		Longitude of periastron (ω)	61.8°
Node (Ω)	176.5°		Note			Grade	2	(1=Definitive, 9=Indet.)
Equinox	2000		Last observation	2006

label	rho	theta
2000	0.792	300.0
2001	0.773	299.7
2002	0.755	299.3
2003	0.735	298.9
2004	0.715	298.4
2005	0.694	298.0
2006	0.672	297.5
2007	0.649	297.0
2008	0.626	296.4
2009	0.602	295.8
2010	0.576	295.1
2011	0.550	294.4
2012	0.523	293.6
2013	0.494	292.7
2014	0.464	291.7
2015	0.433	290.6
2016	0.400	289.3
2017	0.397	289.1
2018	0.074	243.5
2019	0.529	293.8
2020	0.248	280.3
2021	0.244	280.0
2022	0.148	267.8
2023	0.087	250.3
2024	0.047	2.2
2025	0.171	338.4
2026	0.249	333.1
2027	1.106	312.3
2028	0.140	266.3
2029	0.417	326.5
2030	0.195	275.0

grafico orbita

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

wds14411%2B1344b.png orbit plot

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

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
14411+1344	STF1865	AB	2007	720	298	0.7	4.46	4.55	A0V+A0V	NOD	144108.92+134342.0
14411+1344	STF1865	AB	2008	726	296	0.6	4.46	4.55	A0V+A0V	NOD	144108.92+134342.0
14411+1344	STF1865	AB	2009	727	295	0.6	4.46	4.55	A0V+A0V	NOD	144108.92+134342.0
14411+1344	STF1865	AB	2010	736	293	0.6	4.46	4.55	A0V+A0V	NOD	144108.92+134342.0
14411+1344	STF1865	AB	2012	767	297	0.5	4.46	4.55	A0V A0V	NOD	144108.92+134342.0
14411+1344	STF1865	AB	2013	744	291	0.5	4.46	4.55	A0V A0V	NOD	144108.92+134342.0
14411+1344	STF1865	AB	2015	746	287	0.5	4.46	4.55	A0V+A0V	NO	144108.92+134342.0
14411+1344	STF1865	AB	2018	750	283	0.3	4.46	4.55	A0V+A0V	NO	144108.92+134342.0
14411+1344	STF1865	AB	2019	758	282	0.3	4.46	4.55	A0V+A0V	NO	144108.92+134342.0

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