20442-7759 HDS 2951 (HD 196267)

 
 
20h 44m 13.92s -77° 59' 16.4" P.A. 352.00 sep 0.0 mag 10.52,11.56 Sp G1/G2V dist. 191.57 pc (624.9 l.y.)
 
 
Coord 2000 20442-7759 Discov num HDS2951 Comp Coord arcsec 2000 20 44 13.92 -77 59 16.4
Date first 1991 Date last 2023 Obs 9
Pa first 66 Pa last 351.5 P.A. Now (θ) 331.9°
Sep first 0.2 Sep last 0.04 Sep. Now (ρ) 0.038"
Mag pri 10.52 Mag sec 11.56 delta mag (ΔM) 1.04 Spectral class G1/G2V (yellow)
Pri motion ra -001 Sec motion ra
Pri motion dec -001 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 196267 Constellation Octans HIP 102348 Tycho2 9465-00891-1
Gaia DR2 6362142481565313792 HD 196267 CP CP-78 1327 Distance 191.57
Distance ly 624.9
 
 
ORBITAL ELEMENTS
 
 
Period (P)81.7y± 47.3 Periastron (T)2019.01y± 0.2 Semi-major axis (a)0.107a± 0.037
Eccentricity (e)0.857± 0.065 Inclination (i)46.9°± 7.5 Longitude of periastron (ω)121.2°± 16
Node (Ω)107.3°± 14.9 Notes ReferenceTok2022g
Equinox2000 Last observation2022 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 75.6 0.138
2001 76.5 0.136
2002 77.5 0.133
2003 78.5 0.130
2004 79.6 0.126
2005 80.8 0.123
2006 82.0 0.119
2007 83.3 0.114
2008 84.7 0.110
2009 86.3 0.105
2010 88.0 0.099
2011 89.9 0.093
2012 92.1 0.086
2013 94.7 0.079
2014 97.9 0.071
2015 102.0 0.061
2016 107.7 0.050
2017 117.0 0.037
2018 138.8 0.021
2019 237.6 0.012
2020 301.0 0.023
2021 324.5 0.032
2022 339.0 0.038
2023 349.3 0.045
2024 357.1 0.051
2025 3.4 0.056
2026 8.5 0.062
2027 12.9 0.067
2028 16.6 0.072
2029 19.8 0.076
2030 22.7 0.081
2031 25.2 0.086
2032 27.6 0.090
2033 29.7 0.094
2034 31.6 0.098
2035 33.4 0.102
2036 35.0 0.105
2037 36.6 0.109
2038 38.0 0.112
2039 39.4 0.115
2040 40.7 0.119
2041 41.9 0.122
2042 43.1 0.124
2043 44.2 0.127
2044 45.3 0.130
2045 46.4 0.132
2046 47.4 0.135
2047 48.3 0.137
2048 49.3 0.139
2049 50.2 0.141
2050 51.0 0.143


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds20442-7759a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic