00463-0634 HDS 101 (HD 4393)

 
 
00h 46m 16.11s -06 33' 58.4" P.A. 11.00 sep 0.1 mag 8.93,10.27 Sp F5 dist. 138.5 pc (451.79 l.y.)
 
 
Coord 2000 00463-0634 Discov num HDS 101 Comp Coord arcsec 2000 00 46 16.11 -06 33 58.4
Date first 1991 Date last 2021 Obs 13
Pa first 11 Pa last 11 P.A. Now (θ) 14.3°
Sep first 0.1 Sep last 0.149 Sep. Now (ρ) 0.152"
Mag pri 8.93 Mag sec 10.27 delta mag (ΔM) 1.34 Spectral class F5 (yellow-white)
Pri motion ra +037 Sec motion ra
Pri motion dec +005 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 4393 Constellation Cetus SAO 128945 HIP 3612
Tycho2 4679-00531-1 Gaia DR2 2523760617498080768 HD 4393 BD BD-07 117
Distance 138.5 Distance ly 451.79
 
 
ORBITAL ELEMENTS
 
 
Period (P)28.5y± 0.5 Periastron (T)2010.23y± 0.08 Semi-major axis (a)0.09a± 0.004
Eccentricity (e)0.707± 0.005 Inclination (i)20.3°± 1 Longitude of periastron (ω)185.7°± 12
Node (Ω)13.2°± 6 Notesn ReferenceDoc2022a
Equinox Last observation2021 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 30.6 0.144
2001 34.0 0.139
2002 37.7 0.132
2003 41.8 0.124
2004 46.6 0.115
2005 52.3 0.104
2006 59.4 0.091
2007 69.1 0.076
2008 84.0 0.059
2009 111.8 0.041
2010 176.6 0.027
2011 263.5 0.033
2012 304.1 0.051
2013 323.0 0.070
2014 334.3 0.086
2015 342.3 0.099
2016 348.4 0.111
2017 353.4 0.121
2018 357.7 0.130
2019 1.5 0.137
2020 5.0 0.143
2021 8.2 0.147
2022 11.3 0.150
2023 14.3 0.152
2024 17.2 0.153
2025 20.0 0.153
2026 23.0 0.152
2027 25.9 0.150
2028 29.0 0.146
2029 32.3 0.142
2030 35.8 0.136


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



 
 


wds00463-0634d.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic