You're not logged.

Login

Preset columns are boring you? Create your own custom set!
Register here!

Search

Actions

Advanced Search
Go to Simbad
New report
New measure
Login

Computed Lists

Populars
Latest Populars
Doubles in session

Current system

00135-3650
HDS 32

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.

00135-3650 HDS 32

00^h 13^m 29.10^s -36° 49' 43.0" P.A. 301.40 sep 0.2 mag 11.35,11.93 Sp M0.5V dist. 28.18 pc (91.92 l.y.)

Coord 2000	00135-3650		Discov num	HDS 32		Comp			Coord arcsec 2000	00 13 29.10 -36 49 43.0
Date first	1991		Date last	2020		Obs	9
Pa first	282		Pa last	304		P.A. Now (θ)	301.4°
Sep first	0.2		Sep last	0.2		Sep. Now (ρ)	0.23"
Mag pri	11.35		Mag sec	11.93		delta mag (ΔM)	0.58		Spectral class	M0.5V (red)
Pri motion ra	-209		Sec motion ra
Pri motion dec	-319		Sec motion dec
Notes	O (Orbital solution)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	304.1		Precise sep	0.229		Constellation	Sculptor		HIP	1083
Tycho2	6996-00077-3		CD	CD-37 34		Distance	28.18		Distance ly	91.92
last precise pa	304.1		last precise sep	0.229

ORBITAL ELEMENTS

Period (P)	15.34y	± 0.35	Periastron (T)	2009.45y	± 0.73	Semi-major axis (a)	0.229a	± 0.016
Eccentricity (e)	0.25	± 0.08	Inclination (i)	154.2°	± 11.3	Longitude of periastron (ω)	260.6°	± 38.4
Node (Ω)	88.2°	± 48.5	Note			Grade	3	(1=Definitive, 9=Indet.)
Equinox	2000		Last observation

label	rho	theta
2000	0.259	37.0
2001	0.260	21.1
2002	0.258	5.1
2003	0.254	348.7
2004	0.249	331.8
2005	0.241	314.0
2006	0.229	294.6
2007	0.210	272.5
2008	0.184	244.9
2009	0.160	208.2
2010	0.158	164.3
2011	0.182	126.2
2012	0.212	98.5
2013	0.235	77.2
2014	0.250	59.0
2015	0.258	42.5
2016	0.260	26.5
2017	0.259	10.5
2018	0.256	354.3
2019	0.251	337.6
2020	0.244	320.2
2021	0.234	301.4
2022	0.217	280.4
2023	0.194	255.1
2024	0.167	221.9
2025	0.155	179.2
2026	0.172	137.9
2027	0.202	107.0
2028	0.229	83.9
2029	0.246	65.0
2030	0.256	48.0

grafico orbita

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

wds00135-3650e.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
00135-3650	HDS 32		1991	1	282	0.2	11.35	11.93			001329.23-364940.5
00135-3650	HDS 32		2014	2	226	0.3	11.35	11.93	M0.5V		001329.23-364940.5
00135-3650	HDS 32		2015	3	28	0.3	11.35	11.93	M0.5V		001329.23-364940.5
00135-3650	HDS 32		2017	6	0	0.3	11.35	11.93	M0.5V		001329.10-364943.0
00135-3650	HDS 32		2018	7	346	0.3	11.35	11.93	M0.5V	O	001329.10-364943.0
00135-3650	HDS 32		2019	8	329	0.2	11.35	11.93	M0.5V	O	001329.10-364943.0

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