00321-0511 A 111 AB

 
 
00h 32m 08.28s -05° 10' 43.3" P.A. 279.00 sep 0.2 mag 9.40,9.40 Sp K0V dist. 46.1 pc (150.38 l.y.)
 
 
Coord 2000 00321-0511 Discov num A   111 Comp AB Coord arcsec 2000 00 32 08.28 -05 10 43.3
Date first 1915 Date last 2020 Obs 77
Pa first 263 Pa last 278.6 P.A. Now (θ) 248.4°
Sep first 0.2 Sep last 0.171 Sep. Now (ρ) 0.15"
Mag pri 9.40 Mag sec 9.40 delta mag (ΔM) 0 Spectral class K0V (yellow-orange)
Pri motion ra +299 Sec motion ra
Pri motion dec -021 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
00321-0511 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 128813 00 32 08 -05 10 43 A 111 AB 2020 77 279 0.2 9.40 9.40 0.00 Y <===
Show HD 2880 128813 00 32 08 -05 10 43 A 111 AB,C 2016 33 185 2.6 8.71 11.40 2.69
Show 128813 00 32 08 -05 10 43 A 111 AB,D 2017 8 208 126.1 8.71 13.75 5.04
Show 128813 00 32 08 -05 10 43 SKF 293 AB,E 2017 7 351 430.0 8.69 14.48 5.79
Quintuple system
6 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cetus SAO 128813 HIP 2533 Tycho2 4678-00309-1
Gaia DR2 2527046061321024512 HD 2880 GC 633 ADS 450
BD BD-05 77 Distance 46.1 Distance ly 150.38
 
 
ORBITAL ELEMENTS
 
 
Period (P)10.64y± 0.02 Periastron (T)2015.19y± 0.19 Semi-major axis (a)0.122a± 0.003
Eccentricity (e)0.538± 0.014 Inclination (i)155.7°± 4.2 Longitude of periastron (ω)101.6°± 14.9
Node (Ω)206.5°± 18.5 Notesn ReferenceTok2015c
Equinox2000 Last observation2014 Grade1(1=Definitive, 9=Indet.)
label theta rho
2000 273.7 0.171
2001 259.8 0.162
2002 243.4 0.144
2003 220.1 0.113
2004 170.7 0.067
2005 49.0 0.065
2006 354.2 0.107
2007 328.1 0.136
2008 310.1 0.156
2009 295.4 0.168
2010 282.1 0.172
2011 268.8 0.168
2012 254.3 0.157
2013 236.2 0.135
2014 207.7 0.099
2015 131.0 0.053
2016 22.5 0.081
2017 343.3 0.119
2018 321.0 0.144
2019 304.6 0.161
2020 290.6 0.170
2021 277.4 0.172
2022 263.8 0.165
2023 248.4 0.150
2024 227.8 0.123
2025 190.4 0.081
2026 80.1 0.054
2027 4.8 0.096
2028 334.2 0.129
2029 314.7 0.151
2030 299.3 0.165


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



 
 


wds00321-0511a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic