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10110+7508
KUI 47

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

10110+7508 KUI 47

10^h 10^m 58.77^s +75° 08' 28.5" P.A. 123.40 sep 2.0 mag 10.32,10.39 Sp M0 dist. 21.53 pc (70.23 l.y.)

Coord 2000	10110+7508		Discov num	KUI 47		Comp			Coord arcsec 2000	10 10 58.77 +75 08 28.5
Date first	1936		Date last	2017		Obs	58
Pa first	158		Pa last	121		P.A. Now (θ)	123.4°
Sep first	1.3		Sep last	2.0		Sep. Now (ρ)	2.03"
Mag pri	10.32		Mag sec	10.39		delta mag (ΔM)	0.07		Spectral class	M0 (red)
Pri motion ra	+228		Sec motion ra	+228
Pri motion dec	+252		Sec motion dec	+252
Notes	N O (See Notes, Orbital solution)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	121.1		Precise sep	1.955		Constellation	Draco		SAO	7063
HIP	49868		Tycho2	4542-00134-1		GL	Gl 379A		BD	BD+75 403
Distance	21.53		Distance ly	70.23		last precise pa	121.1		last precise sep	1.955

ORBITAL ELEMENTS

Period (P)	236.3323y	± 24.8421	Periastron (T)	1955.2427y	± 0.287	Semi-major axis (a)	1.91216a	± 0.20681
Eccentricity (e)	0.94664	± 0.01216	Inclination (i)	52.428°	± 3.554	Longitude of periastron (ω)	288.009°	± 3.712
Node (Ω)	16.417°	± 4.186	Note			Grade	5	(1=Definitive, 9=Indet.)
Equinox			Last observation	2015

label	rho	theta
2000	1.678	116.8
2001	1.698	117.1
2002	1.717	117.5
2003	1.736	117.9
2004	1.755	118.2
2005	1.774	118.6
2006	1.792	118.9
2007	1.809	119.3
2008	1.827	119.6
2009	1.844	119.9
2010	1.861	120.2
2011	1.878	120.6
2012	1.894	120.9
2013	1.910	121.2
2014	1.926	121.5
2015	1.942	121.8
2016	1.957	122.0
2017	1.972	122.3
2018	1.987	122.6
2019	2.001	122.9
2020	2.016	123.2
2021	2.030	123.4
2022	2.043	123.7
2023	2.057	123.9
2024	2.070	124.2
2025	2.083	124.5
2026	2.096	124.7
2027	2.108	125.0
2028	2.121	125.2
2029	2.133	125.4
2030	2.145	125.7

grafico orbita

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

wds10110%2B7508b.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
10110+7508	KUI 47		2007	49	119	1.8	10.32	10.39	M0	NOD	101058.77+750828.5
10110+7508	KUI 47		2010	50	120	1.8	10.32	10.39	M0	NOD	101058.77+750828.5
10110+7508	KUI 47		2012	51	121	1.8	10.32	10.39	M0	NO	101058.77+750828.5
10110+7508	KUI 47		2015	52	122	1.7	10.32	10.39	M0	NO	101058.77+750828.5
10110+7508	KUI 47		2017	54	121	2.0	10.32	10.39	M0	NO	101058.77+750828.5

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