12157-8047 FIN 195 (HD 106508)

 
 
12h 15m 44.74s -80° 47' 04.9" P.A. 57.00 sep 0.1 mag 8.41,9.15 Sp B9.5V dist. 296.74 pc (967.97 l.y.)
 
 
Coord 2000 12157-8047 Discov num FIN 195 Comp Coord arcsec 2000 12 15 44.74 -80 47 04.9
Date first 1928 Date last 2019 Obs 6
Pa first 318 Pa last 57 P.A. Now (θ) 57°
Sep first 0.4 Sep last 0.113 Sep. Now (ρ) 0.113"
Mag pri 8.41 Mag sec 9.15 delta mag (ΔM) 0.74 Spectral class B9.5V (blue-white)
Pri motion ra -031 Sec motion ra
Pri motion dec +002 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 106508 Constellation Chamaeleon HIP 59798 Tycho2 9424-00872-1
Gaia DR2 5787161156518623616 HD 106508 CP CP-80 646 Distance 296.74
Distance ly 967.97
 
 
ORBITAL ELEMENTS
 
 
Period (P)280y Periastron (T)2032.74y Semi-major axis (a)0.322a
Eccentricity (e)0.754 Inclination (i)60° Longitude of periastron (ω)44.6°
Node (Ω)96.1° Notes ReferenceTok2020g
Equinox2000 Last observation2019 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 4.0 0.151
2001 6.0 0.148
2002 8.0 0.145
2003 10.2 0.142
2004 12.4 0.139
2005 14.7 0.137
2006 17.1 0.134
2007 19.5 0.132
2008 22.1 0.130
2009 24.7 0.127
2010 27.5 0.125
2011 30.3 0.124
2012 33.2 0.122
2013 36.2 0.120
2014 39.3 0.119
2015 42.4 0.118
2016 45.6 0.116
2017 48.9 0.115
2018 52.2 0.114
2019 55.6 0.113
2020 59.0 0.112
2021 62.5 0.111
2022 66.0 0.110
2023 69.7 0.109
2024 73.4 0.108
2025 77.2 0.106
2026 81.2 0.104
2027 85.4 0.101
2028 89.9 0.097
2029 94.8 0.092
2030 100.4 0.086


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



 
 


wds12157-8047a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic