Eta2 Hydri b

Eta² Hydri b (η² Hyi b, η² Hydri b), commonly known as HD 11977 b, is an extrasolar planet that is approximately 217 light-years away in the constellation of Hydrus. The presence of the planet around an intermediately massive giant star provides indirect evidence for the existence of planetary systems around A-type stars.

References

• Setiawan, J.; Rodmann, J.; Da Silva, L.; Hatzes, A. P.; Pasquini, L.; Von Der Lühe, O.; De Medeiros, J. R.; Döllinger, M. P.; Girardi, L. (2005). "A substellar companion around the intermediate-mass giant star HD 11977". Astronomy & Astrophysics. 437 (2): L31–L34. arXiv:astro-ph/0505510. Bibcode:2005A&A...437L..31S. doi:10.1051/0004-6361:200500133. S2CID 6362483.

External links

• "HD 11977 B, a planet around a giant star". Max-Planck-Institut für Astronomie. Archived from the original on March 14, 2007. Retrieved 2008-07-03.
• "Notes for planet HD 11977 b". Extrasolar Planets Encyclopaedia. Retrieved 2008-07-03.

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Constellation of Hydrus

• List of stars in Hydrus
• Hydrus in Chinese astronomy

Stars

Bayer	α β γ δ ε ζ η1 η2 θ ι κ λ μ ν π1 π2 σ τ1 τ2
Variable	VW
HD	1237 10180 20003
Other	AB8 SMSS J0313−6708 WISEPC J014807.25−720258.7

Exoplanets	η2 Hydri b GJ 3021 b HD 10180 c

Star clusters	NGC 602 NGC 643 NGC 1466

Galaxies

NGC	646 802 813
Other	KKs 3 PGC 6240 Small Magellanic Cloud (mostly in Tucana) Large Magellanic Cloud (mostly in Dorado, partly in Mensa)

Category

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