03076-0358 HDS 396

 
 
03h 07m 33.79s -03° 58' 17.0" P.A. 88.00 sep 0.1 mag 11.69,11.71 Sp K8V+M0.5V dist. 54.67 pc (178.33 l.y.)
 
 
Coord 2000 03076-0358 Discov num HDS 396 Comp Coord arcsec 2000 03 07 33.79 -03 58 17.0
Date first 1991 Date last 2021 Obs 26
Pa first 20 Pa last 87.6 P.A. Now (θ) 48.9°
Sep first 0.3 Sep last 0.095 Sep. Now (ρ) 0.179"
Mag pri 11.69 Mag sec 11.71 delta mag (ΔM) 0.02 Spectral class K8V+M0.5V (yellow-orange/red)
Pri motion ra -265 Sec motion ra
Pri motion dec -389 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Eridanus HIP 14524 Tycho2 4710-00268-3 GL NN 3202
Distance 54.67 Distance ly 178.33
 
 
ORBITAL ELEMENTS
 
 
Period (P)34.5y± 0.34 Periastron (T)2021.01y± 0.02 Semi-major axis (a)0.317a± 0.002
Eccentricity (e)0.647± 0.006 Inclination (i)131.8°± 0.7 Longitude of periastron (ω)259.1°± 0.4
Node (Ω)40.6°± 1.1 Notes ReferenceTok2021c
Equinox2000 Last observation2021 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 342.1 0.365
2001 338.0 0.364
2002 334.0 0.362
2003 329.9 0.359
2004 325.7 0.355
2005 321.4 0.350
2006 317.0 0.345
2007 312.4 0.339
2008 307.7 0.333
2009 302.8 0.326
2010 297.7 0.319
2011 292.4 0.311
2012 286.7 0.303
2013 280.7 0.294
2014 274.3 0.283
2015 267.4 0.271
2016 259.8 0.257
2017 251.1 0.239
2018 240.8 0.215
2019 227.2 0.181
2020 205.0 0.130
2021 147.6 0.076
2022 74.7 0.114
2023 48.9 0.179
2024 36.1 0.229
2025 27.3 0.265
2026 20.5 0.293
2027 14.7 0.314
2028 9.6 0.330
2029 4.9 0.342
2030 0.5 0.351


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



 
 


wds03076-0358a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic