01148+6056 BU 1100

Coord 2000	01148+6056		Discov num	BU 1100		Comp			Coord arcsec 2000	01 14 45.80 +60 56 19.9
Date first	1889		Date last	2010		Obs	70
Pa first	44		Pa last	353		P.A. Now (θ)	149°
Sep first	0.5		Sep last	0.3		Sep. Now (ρ)	0.22"
Mag pri	8.94		Mag sec	7.57		delta mag (ΔM)	1.37		Spectral class	F7IV (yellow-white)
Pri motion ra	+064		Sec motion ra	+064
Pri motion dec	-044		Sec motion dec	-044
Notes	N O (See Notes, Orbital solution)

This double is physical.

SAO

36755

Tycho2

3270-01659-1

last precise pa

353.4

last precise sep

0.33

Period (P)	171.49y		Periastron (T)	1950.92y		Semi-major axis (a)	0.506a
Eccentricity (e)	0.135		Inclination (i)	110.7°		Longitude of periastron (ω)	288.1°
Node (Ω)	210.7°		Note			Grade	3	(1=Definitive, 9=Indet.)
Equinox	2000		Last observation	2010

label rho theta 2000 0.395 190.9 2001 0.386 189.7 2002 0.377 188.4 2003 0.367 187.0 2004 0.358 185.6 2005 0.348 184.1 2006 0.339 182.5 2007 0.329 180.8 2008 0.319 179.0 2009 0.309 177.1 2010 0.299 175.1 2011 0.289 172.9 2012 0.280 170.6 2013 0.270 168.1 2014 0.261 165.4 2015 0.252 162.6 2016 0.244 159.5 2017 0.236 156.2 2018 0.229 152.7 2019 0.222 149.0 2020 0.216 145.1 2021 0.211 141.0 2022 0.207 136.7 2023 0.204 132.3 2024 0.202 127.7 2025 0.201 123.1 2026 0.202 118.4 2027 0.203 113.8 2028 0.206 109.3 2029 0.209 104.9 2030 0.214 100.7 Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
		Measures: green=micrometric, blue=interferometric, purple=photographic

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
01148+6056	BU 1100		2004	68	3	0.4	8.94	7.57	F7IV	NOD	011445.80+605619.9
01148+6056	BU 1100		2010	71	353	0.3	8.94	7.57	F7IV	NOD	011445.80+605619.9

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