HD 142022 Ab is an exoplanet discovered by the radial velocity method by Eggenberger et al. in 2005, after finding that HD 142022 A is wobbling which indicated the presence of a massive planet, with a minimum mass 4.5 times Jupiter. It has a relatively wide separation between the planet and the star of nearly 3 AU, and takes 1928 days or 5.28 years to revolve. As is common for long-period planets, it has a relatively high eccentricity of 53±20%.^[1] In 2023, the inclination and true mass of HD 142022 Ab were determined via astrometry.^[2]

• HD 141937 b
• HD 142415 b

• "HD 142022 A". Exoplanets. Archived from the original on 2012-03-04. Retrieved 2008-11-01.

v t e Constellation of Octans
List of stars in Octans Octans in Chinese astronomy
Stars	Bayer α β γ1 γ2 γ3 δ ε ζ η θ ι κ λ μ1 μ2 ν ξ ο π1 π2 ρ σ (Polaris Australis) τ υ φ χ ψ ω Variable R BQ CK CW FT HR 47 512 525 4595 6837 6912 7698 7785 7812 8234 8380 8432 8526 8577 8786 8935 8957 8995 HD 142022 166066 212301 Other Gliese 877 LHS 475 TOI-4342 W2150AB
Exoplanets 2MASS J2126–8140 HD 142022 Ab HD 212301 b LHS 475 b
Galaxies	NGC 2573 7095 7098 Other PGC 10922
Category