13175-4033 I 425 (HD 115370)

 
 
13h 17m 28.71s -40° 32' 38.9" P.A. 11.00 sep 0.2 mag 9.90,10.05 Sp G8V dist. 62.85 pc (205.02 l.y.)
 
 
Coord 2000 13175-4033 Discov num I   425 Comp Coord arcsec 2000 13 17 28.71 -40 32 38.9
Date first 1902 Date last 2019 Obs 16
Pa first 320 Pa last 11 P.A. Now (θ) 11°
Sep first 1.1 Sep last 0.182 Sep. Now (ρ) 0.182"
Mag pri 9.90 Mag sec 10.05 delta mag (ΔM) 0.15 Spectral class G8V (yellow)
Pri motion ra -038 Sec motion ra -038
Pri motion dec -085 Sec motion dec -085
Notes C (Has orbit and linear solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 115370 Constellation Centaurus SAO 224038 HIP 64835
Tycho2 7778-00668-1 Gaia DR2 6138160619976665728 HD 115370 CD CD-39 8157
CP CP-39 5930 Distance 62.85 Distance ly 205.02
 
 
ORBITAL ELEMENTS
 
 
Period (P)250y Periastron (T)2050.086y Semi-major axis (a)0.754a
Eccentricity (e)0.75 Inclination (i)77.2° Longitude of periastron (ω)39.7°
Node (Ω)129.9° Notesn ReferenceTok2018e
Equinox2000 Last observation2018 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 339.0 0.408
2001 339.8 0.396
2002 340.6 0.384
2003 341.4 0.372
2004 342.3 0.360
2005 343.2 0.348
2006 344.3 0.336
2007 345.4 0.324
2008 346.6 0.312
2009 347.8 0.300
2010 349.2 0.288
2011 350.7 0.276
2012 352.4 0.264
2013 354.2 0.252
2014 356.2 0.240
2015 358.4 0.229
2016 0.8 0.218
2017 3.4 0.207
2018 6.4 0.196
2019 9.7 0.186
2020 13.4 0.176
2021 17.4 0.167
2022 21.9 0.159
2023 26.9 0.152
2024 32.3 0.146
2025 38.1 0.141
2026 44.2 0.138
2027 50.6 0.136
2028 57.1 0.136
2029 63.6 0.137
2030 69.8 0.140


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



 
 


wds13175-4033a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic