You're not logged.

Login

Keep tracks of you favourite doubles.
Register here

Search

Actions

Advanced Search
Go to Simbad
New report
New measure
Login

Computed Lists

Populars
Latest Populars
Doubles in session

Current system

10468-4925
R 155
Mu Vel

Selections

Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

10468-4925 R 155 (Mu Vel)

10^h 46^m 46.20^s -49° 25' 12.8" P.A. 58.10 sep 2.3 mag 2.82,5.65 Sp G5III+G2V dist. 35.92 pc (117.17 l.y.)

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	2019		Obs	53
Pa first	55		Pa last	58		P.A. Now (θ)	58.1°
Sep first	2.8		Sep last	2.3		Sep. Now (ρ)	2.32"
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.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	58.2		Precise sep	2.287		Name	Mu Vel		Constellation	Vela
SAO	222321		HIP	52727		Tycho2	8206-03033-1		Gaia DR2	5361403934681413248
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	58.2		last precise sep	2.287

ORBITAL ELEMENTS

Period (P)	142.927y	± 7.8788	Periastron (T)	1948.7102y	± 1.4024	Semi-major axis (a)	1.42551a	± 0.21639
Eccentricity (e)	0.93998	± 0.02468	Inclination (i)	40.323°	± 11.216	Longitude of periastron (ω)	122.424°	± 19.329
Node (Ω)	108.08°	± 17.886	Note			Grade	4	(1=Definitive, 9=Indet.)
Equinox			Last observation	2014

label	rho	theta
2000	2.149	52.6
2001	2.163	52.9
2002	2.177	53.1
2003	2.189	53.4
2004	2.201	53.7
2005	2.213	54.0
2006	2.224	54.2
2007	2.234	54.5
2008	2.244	54.8
2009	2.253	55.0
2010	2.262	55.3
2011	2.270	55.6
2012	2.277	55.8
2013	2.284	56.1
2014	2.290	56.3
2015	2.296	56.6
2016	2.301	56.8
2017	2.306	57.1
2018	2.310	57.3
2019	2.313	57.6
2020	2.316	57.8
2021	2.318	58.1
2022	2.320	58.3
2023	2.321	58.6
2024	2.322	58.8
2025	2.322	59.1
2026	2.321	59.3
2027	2.320	59.6
2028	2.318	59.8
2029	2.316	60.1
2030	2.313	60.3

grafico orbita

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

wds10468-4925c.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
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

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