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HD 147018 b is a gas giant extrasolar planet which orbits the G-type main sequence star HD 147018, located approximately 140 light years away in the constellation Triangulum Australe. This planet has minimum mass more than twice that of Jupiter but this planet orbits a lot closer to the star than Jupiter to the Sun by a factor of 22. Meanwhile, it has an eccentric orbit. The planet can get as close to the star as 0.13 AU or can get as far as 0.35 AU. Further out, there is another superjovian planet HD 147018 c, which was discovered on the same date as this planet, on August 11, 2009.

References

• Segransan; et al. (February 2010). "The CORALIE survey for southern extrasolar planets. XVI. Discovery of a planetary system around HD 147018 and of two long period and massive planets orbiting HD 171238 and HD 204313". Astronomy & Astrophysics. 511. article A45. arXiv:0908.1479. Bibcode:2010A&A...511A..45S. doi:10.1051/0004-6361/200912136. S2CID 8864844.

v t e Constellation of Triangulum Australe
List of stars in Triangulum Australe Triangulum Australe in Chinese astronomy
Stars	Bayer α (Atria) β γ δ ε ζ η θ ι κ Variable R S U X RT EK KX LP LT LX MX HR 5611 5621 5684 5713 5792 5851 5884 5898 5905 5920 5951 6037 6089 6125 6182 6231 6233 HD 141969 144481 147018 150097 153389 Other 4U 1626-67 Triangulum Australe X-1 WISE 1639−6847 WR 69 X1556-605
Exoplanets HD 147018 b c
Star clusters NGC 6025
Nebulae NGC 5979
Galaxies ESO 69-6 ESO 137-001
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