02332-5156 HDS 333 (HD 16077)

02^h 33^m 13.38^s -51° 56' 19.2" P.A. 262.00 sep 0.5 mag 8.65,10.87 Sp K0V dist. 39.22 pc (127.94 l.y.)

Coord 2000	02332-5156		Discov num	HDS 333		Comp			Coord arcsec 2000	02 33 13.38 -51 56 19.2
Date first	1991		Date last	2021		Obs	26
Pa first	197		Pa last	262		P.A. Now (θ)	262°
Sep first	0.3		Sep last	0.455		Sep. Now (ρ)	0.455"
Mag pri	8.65		Mag sec	10.87		delta mag (ΔM)	2.22		Spectral class	K0V (yellow-orange)
Pri motion ra	-034		Sec motion ra
Pri motion dec	+166		Sec motion dec
Notes	O (Orbital solution)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 16077		Constellation	Horologium		SAO	232813		HIP	11877
Tycho2	8056-00172-1		Gaia DR2	4745027439957055232		HD	16077		GC	3079
CP	CP-52 317		Distance	39.22		Distance ly	127.94

ORBITAL ELEMENTS

Period (P)	49.54y		Periastron (T)	1981.14y		Semi-major axis (a)	0.413a
Eccentricity (e)	0.6		Inclination (i)	57.4°		Longitude of periastron (ω)	150.9°
Node (Ω)	252.6°		Notes			Reference	Tok2018b
Equinox	2000		Last observation	2018		Grade	4	(1=Definitive, 9=Indet.)

label	theta	rho
2000	226.0	0.519
2001	227.9	0.537
2002	229.7	0.554
2003	231.4	0.569
2004	233.0	0.583
2005	234.6	0.594
2006	236.0	0.604
2007	237.5	0.611
2008	238.9	0.617
2009	240.3	0.620
2010	241.7	0.621
2011	243.1	0.620
2012	244.5	0.617
2013	245.9	0.611
2014	247.3	0.603
2015	248.8	0.592
2016	250.4	0.578
2017	252.0	0.562
2018	253.8	0.542
2019	255.7	0.519
2020	257.8	0.493
2021	260.1	0.462
2022	262.8	0.428
2023	266.0	0.389
2024	270.0	0.345
2025	275.2	0.297
2026	282.5	0.244
2027	294.2	0.187
2028	315.6	0.135
2029	354.8	0.107
2030	36.8	0.126

grafico orbita

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

wds02332-5156a.png orbit plot

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