09510-8004 HDS 1421 (HD 86320)

 
 
09h 51m 00.80s -80 03' 39.9" P.A. 344.00 sep 0.1 mag 6.68,8.61 Sp B8IV dist. 256.41 pc (836.41 l.y.)
 
 
Coord 2000 09510-8004 Discov num HDS1421 Comp Coord arcsec 2000 09 51 00.80 -80 03 39.9
Date first 1991 Date last 2021 Obs 18
Pa first 119 Pa last 344.3 P.A. Now (θ) 344.3°
Sep first 0.2 Sep last 0.111 Sep. Now (ρ) 0.111"
Mag pri 6.68 Mag sec 8.61 delta mag (ΔM) 1.93 Spectral class B8IV (blue-white)
Pri motion ra -003 Sec motion ra
Pri motion dec +015 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 86320 Constellation Chamaeleon SAO 256666 HIP 48320
Tycho2 9404-01549-1 Gaia DR2 5201784945460884224 HD 86320 GC 13624
CP CP-79 457 Distance 256.41 Distance ly 836.41
 
 
ORBITAL ELEMENTS
 
 
Period (P)107.3y± 22.3 Periastron (T)2013.84y± 0.33 Semi-major axis (a)0.186a± 0.018
Eccentricity (e)0.614± 0.054 Inclination (i)31.1°± 6.5 Longitude of periastron (ω)125.3°± 5.6
Node (Ω)132.7°± 7.2 Notes ReferenceTok2021c
Equinox2000 Last observation2021 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 136.7 0.168
2001 139.6 0.161
2002 142.8 0.153
2003 146.4 0.144
2004 150.4 0.135
2005 155.0 0.126
2006 160.4 0.116
2007 166.7 0.106
2008 174.4 0.096
2009 183.7 0.087
2010 195.4 0.078
2011 209.9 0.070
2012 227.2 0.065
2013 246.3 0.064
2014 265.2 0.066
2015 282.3 0.070
2016 296.9 0.077
2017 309.2 0.083
2018 319.6 0.090
2019 328.6 0.097
2020 336.4 0.104
2021 343.3 0.110
2022 349.4 0.116
2023 355.0 0.122
2024 360.0 0.128
2025 4.5 0.134
2026 8.7 0.139
2027 12.6 0.145
2028 16.2 0.150
2029 19.6 0.156
2030 22.7 0.161


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



 
 


wds09510-8004b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic