01250-3251 HDS 184

01^h 25^m 01.81^s -32° 51' 04.0" P.A. 104.00 sep 0.2 mag 10.54,10.68 dist. 25.14 pc (82.01 l.y.)

Coord 2000	01250-3251		Discov num	HDS 184		Comp			Coord arcsec 2000	01 25 01.81 -32 51 04.0
Date first	1991		Date last	2021		Obs	17
Pa first	287		Pa last	103.6		P.A. Now (θ)	111.9°
Sep first	0.2		Sep last	0.213		Sep. Now (ρ)	0.185"
Mag pri	10.54		Mag sec	10.68		delta mag (ΔM)	0.14		Spectral class
Pri motion ra	+233		Sec motion ra
Pri motion dec	+148		Sec motion dec
Notes	O (Orbital solution)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation	Sculptor		HIP	6626		Tycho2	7002-01728-1		Gaia DR2	5016114746204345216
GL	GJ 1038		CD	CD-33 514		CP	CP-33 143		Distance	25.14
Distance ly	82.01

ORBITAL ELEMENTS

Period (P)	6.313y	± 0.065	Periastron (T)	2018.549y	± 0.021	Semi-major axis (a)	0.1445a	± 0.001
Eccentricity (e)	0.515	± 0.007	Inclination (i)	73.9°	± 0.8	Longitude of periastron (ω)	165.8°	± 2.1
Node (Ω)	107.4°	± 0.5	Notes			Reference	Tok2019c
Equinox			Last observation	2018		Grade	2	(1=Definitive, 9=Indet.)

label	theta	rho
2000	308.3	0.056
2001	82.3	0.094
2002	97.9	0.182
2003	104.8	0.215
2004	111.4	0.188
2005	127.0	0.087
2006	287.9	0.071
2007	66.2	0.058
2008	94.9	0.160
2009	102.9	0.211
2010	109.1	0.204
2011	119.2	0.128
2012	262.0	0.044
2013	15.7	0.034
2014	90.8	0.133
2015	100.8	0.201
2016	107.1	0.213
2017	114.9	0.160
2018	164.3	0.033
2019	314.4	0.050
2020	84.2	0.101
2021	98.4	0.186
2022	105.2	0.216
2023	111.9	0.185
2024	129.5	0.079
2025	291.3	0.071
2026	70.7	0.065
2027	95.6	0.165
2028	103.3	0.212
2029	109.6	0.202
2030	120.3	0.121

grafico orbita

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

wds01250-3251a.png orbit plot

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