14531-4638 I 952 (HD 131078)

 
 
14h 53m 04.85s -46° 38' 12.5" P.A. 308.00 sep 0.8 mag 8.51,10.14 Sp G5V+k1V dist. 47.71 pc (155.63 l.y.)
 
 
Coord 2000 14531-4638 Discov num I   952 Comp Coord arcsec 2000 14 53 04.85 -46 38 12.5
Date first 1910 Date last 2023 Obs 16
Pa first 300 Pa last 308.1 P.A. Now (θ) 313.2°
Sep first 0.7 Sep last 0.779 Sep. Now (ρ) 0.76"
Mag pri 8.51 Mag sec 10.14 delta mag (ΔM) 1.63 Spectral class G5V+k1V (yellow)
Pri motion ra -073 Sec motion ra
Pri motion dec -172 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 131078 Constellation Lupus SAO 225267 HIP 72821
Tycho2 8280-02512-1 Gaia DR2 5906094466003931136 HD 131078 GC 20001
CD CD-46 9649 CP CP-46 7065 Distance 47.71 Distance ly 155.63
 
 
ORBITAL ELEMENTS
 
 
Period (P)99.13y± 0.82 Periastron (T)1981.39y± 0.37 Semi-major axis (a)0.521a± 0.014
Eccentricity (e)0.659± 0.015 Inclination (i)156.1°± 4.5 Longitude of periastron (ω)268.1°± 7.3
Node (Ω)27.1°± 7.8 Notes ReferenceFMR2020a
Equinox2000 Last observation2013 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 340.4 0.576
2001 338.4 0.591
2002 336.6 0.605
2003 334.7 0.619
2004 333.0 0.632
2005 331.4 0.645
2006 329.8 0.656
2007 328.2 0.668
2008 326.7 0.678
2009 325.3 0.688
2010 323.8 0.698
2011 322.5 0.707
2012 321.1 0.715
2013 319.8 0.723
2014 318.5 0.731
2015 317.3 0.738
2016 316.1 0.745
2017 314.8 0.751
2018 313.6 0.756
2019 312.5 0.762
2020 311.3 0.766
2021 310.2 0.771
2022 309.0 0.774
2023 307.9 0.778
2024 306.8 0.781
2025 305.7 0.784
2026 304.6 0.786
2027 303.5 0.787
2028 302.4 0.789
2029 301.3 0.790
2030 300.2 0.790
2031 299.1 0.790
2032 298.0 0.790
2033 297.0 0.789
2034 295.9 0.788
2035 294.8 0.787
2036 293.7 0.785
2037 292.6 0.782
2038 291.5 0.779
2039 290.3 0.776
2040 289.2 0.773
2041 288.1 0.768
2042 286.9 0.764
2043 285.7 0.759
2044 284.6 0.754
2045 283.4 0.748
2046 282.1 0.742
2047 280.9 0.735
2048 279.6 0.728
2049 278.3 0.720
2050 277.0 0.712


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds14531-4638b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic