01106+5101 BU 235 Aa,Ab

01^h 10^m 34.31^s +51° 00' 47.8" P.A. 142.00 sep 0.8 mag 7.54,7.82 Sp F5V dist. 104.6 pc (341.21 l.y.)

Coord 2000	01106+5101		Discov num	BU 235		Comp	Aa,Ab		Coord arcsec 2000	01 10 34.31 +51 00 47.8
Date first	1875		Date last	2018		Obs	114
Pa first	74		Pa last	142.4		P.A. Now (θ)	142.4°
Sep first	0.5		Sep last	0.786		Sep. Now (ρ)	0.786"
Mag pri	7.54		Mag sec	7.82		delta mag (ΔM)	0.28		Spectral class	F5V (yellow-white)
Pri motion ra	+001		Sec motion ra	+001
Pri motion dec	+021		Sec motion dec	+021
Notes	O (Orbital solution)

This double is physical.

01106+5101 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		22060	01 10 34 +51 00 48	BU 235 Aa,Ab	2018	114	142	0.8	7.54	7.82	0.28	Y	<===
Show	HD 6918	22060	01 10 34 +51 00 48	BU 235 AB	2015	29	283	44.0	7.54	10.77	3.23
Show		22060	01 10 34 +51 00 48	STTA 12 AC	2015	34	69	58.2	7.54	10.26	2.72
Show			01 10 30 +51 00 58	BU 235 BD	2015	13	77	9.4	10.77	12.70	1.93
Show			01 10 40 +51 01 08	STT 24 CE	2015	26	47	7.9	10.26	12.00	1.74

Sextuple system
5 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation	Cassiopeia		SAO	22060		HIP	5512		Tycho2	3276-01219-1
Gaia DR2	403617322556810880		HD	6918		ADS	963		BD	BD+50 228
Distance	104.6		Distance ly	341.21

ORBITAL ELEMENTS

Period (P)	278y		Periastron (T)	1810y		Semi-major axis (a)	0.74a
Eccentricity (e)	0.442		Inclination (i)	52.5°		Longitude of periastron (ω)	163.4°
Node (Ω)	122.3°		Notes			Reference	USN2002
Equinox	2000		Last observation	1999		Grade	4	(1=Definitive, 9=Indet.)

label	theta	rho
2000	130.9	0.944
2001	131.3	0.938
2002	131.8	0.932
2003	132.2	0.925
2004	132.7	0.919
2005	133.1	0.912
2006	133.6	0.906
2007	134.1	0.899
2008	134.6	0.892
2009	135.1	0.884
2010	135.6	0.877
2011	136.1	0.869
2012	136.6	0.861
2013	137.1	0.854
2014	137.7	0.845
2015	138.2	0.837
2016	138.8	0.829
2017	139.3	0.820
2018	139.9	0.811
2019	140.5	0.802
2020	141.1	0.793
2021	141.7	0.784
2022	142.4	0.774
2023	143.0	0.765
2024	143.7	0.755
2025	144.4	0.745
2026	145.1	0.735
2027	145.8	0.725
2028	146.6	0.714
2029	147.3	0.704
2030	148.1	0.693

grafico orbita

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

wds01106%2B5101a.png orbit plot

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