10468-4925 R   155 (Mu Vel)

Coord 2000	10468-4925		Discov num	R   155		Comp			Coord arcsec 2000	10 46 46.20 -49 25 12.8
Date first	1880		Date last	2016		Obs	51
Pa first	55		Pa last	57		P.A. Now (θ)	56.9°
Sep first	2.8		Sep last	2.3		Sep. Now (ρ)	2.4"
Mag pri	2.82		Mag sec	5.65		delta mag (ΔM)	2.83		Spectral class	G5III+G2V (yellow/yellow)
Pri motion ra	+074		Sec motion ra	+074
Pri motion dec	-055		Sec motion dec	-055
Notes	N O (See Notes, Orbital solution)

This double is physical.

Precise pa	56.9		Precise sep	2.28		Name	Mu Vel		Constellation	Vela
SAO	222321		HIP	52727		Tycho2	8206-03033-1		HD	93497
HR	4216		GC	14842		CD	CD-48 5913		CP	CP-48 3516
Bayer	Mu Velorum		Bayer name	Mu Vel		Distance	35.92		Distance ly	117.17
last precise pa	56.9		last precise sep	2.28

Period (P)	149.3y		Periastron (T)	1945.4y		Semi-major axis (a)	2.319a
Eccentricity (e)	0.969		Inclination (i)	66°		Longitude of periastron (ω)	291.7°
Node (Ω)	283°		Note			Grade	4	(1=Definitive, 9=Indet.)
Equinox	2000		Last observation	2013

label rho theta 2000 2.177 52.5 2001 2.194 52.7 2002 2.210 53.0 2003 2.226 53.3 2004 2.241 53.5 2005 2.255 53.8 2006 2.270 54.1 2007 2.283 54.3 2008 2.296 54.6 2009 2.309 54.8 2010 2.321 55.0 2011 2.333 55.3 2012 2.344 55.5 2013 2.354 55.8 2014 2.364 56.0 2015 2.374 56.2 2016 2.383 56.5 2017 2.391 56.7 2018 2.399 56.9 2019 2.407 57.1 2020 2.414 57.4 2021 2.420 57.6 2022 2.426 57.8 2023 2.431 58.0 2024 2.436 58.2 2025 2.441 58.5 2026 2.444 58.7 2027 2.448 58.9 2028 2.450 59.1 2029 2.452 59.3 2030 2.454 59.6 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
10468-4925	R 155		1995	44	51	2.1	2.82	5.65	G5III+G2V	NOD	104646.20-492512.8
10468-4925	R 155		2001	45	53	2.0	2.82	5.65	G5III+G2V	NOD	104646.20-492512.8
10468-4925	R 155		2013	46	56	2.3	2.82	5.65	G5III G2V	NOD	104646.20-492512.8
10468-4925	R 155		2014	48	57	2.3	2.82	5.65	G5III G2V	NO	104646.20-492512.8
10468-4925	R 155		2016	51	57	2.3	2.82	5.65	G5III+G2V	NO	104646.20-492512.8

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