HD 143361 b is an exoplanet located approximately 224 light-years away in the constellation of Norma, orbiting the 9th magnitude G-type main sequence star HD 143361. This planet has a minimum mass of 3.0 times that of Jupiter. Because the inclination was initially unknown, the true mass was not known. This planet orbits at a distance of 2.0 AU with an orbital eccentricity of 0.18.
This object was detected using the radial velocity method during an astronomical survey conducted by the Magellan Planet Search Program using the MIKE echelle spectrograph on the 6.5-m Magellan II (Clay) telescope.[1] In 2023, the inclination and true mass of HD 143361 b were determined via astrometry.[2]
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HD143361 is a star in the southern constellation Norma. With an apparent visual magnitude of 9.20, this star is too dim to be seen with the naked eye...
Bibcode:1922BHarO.777....0M Santander-García, M.; Corradi, R. L. M.; Balick, B.; Mampaso, A. (2004), "Menzel 3: Dissecting the ant", Astronomy and Astrophysics...
of HD 153950, the star was observed using telescopes at the La Silla Observatory in Chile. BD-17°63 bHD 131664 HD143361bHD 145377 bHD 20868 bHD 43848...
has a spectral class of A4 V, while its magnitude 5.76 companion, component B, is of class A6 V. The two are 1.94 and 1.65 times as massive as the Sun,...
most massive exoplanet candidate is HD 217786 b, which masses 12.98 MJ; the least massive confirmed planet is HD 10180 b, which masses 0.004 MJ or 3.1 M🜨...
of 3.26 days and an eccentricity of 0.13. Both stars appear to be similar B-type main-sequence stars with stellar classifications of B4 V. The third component...
Nancy (1978), Michigan catalogue of two-dimensional spectral types for the HD stars, vol. 1, Ann Arbor: Dept. of Astronomy, University of Michigan, Bibcode:1975mcts...
effective magnetic fields - II. Re-discussion of chemically peculiar A and B stars", Monthly Notices of the Royal Astronomical Society, 394 (3): 1338–1350...
Nancy (1978), Michigan catalogue of two-dimensional spectral types for the HD stars, vol. 2, Ann Arbor: Dept. of Astronomy, University of Michigan, Bibcode:1978mcts...
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