description HAT-P-11b Overview
HAT-P-11b is a Neptune-sized exoplanet discovered by the HATNet survey, orbiting the orange dwarf star HAT-P-11. It was one of the first small exoplanets to have water vapor successfully detected in its atmosphere, achieved via observations by the Hubble Space Telescope. The planet has a highly eccentric orbit for a hot Neptune, and it serves as an important target for studying the atmospheric compositions of intermediate-sized planets.
help HAT-P-11b FAQ
How was the exoplanet HAT-P-11b discovered?
It was discovered by the HATNet survey, which uses a network of small automated telescopes. The planet was detected using the transit method as it passed in front of its host star.
What type of star does HAT-P-11b orbit?
The planet orbits a type of star known as an orange dwarf, designated HAT-P-11. This star is smaller and cooler than our own Sun.
Why is HAT-P-11b scientifically significant?
It was one of the very first small exoplanets to have water vapor successfully detected in its atmosphere. This major discovery was achieved via observations by the Hubble Space Telescope.
What size is the exoplanet HAT-P-11b?
It is roughly the size of Neptune, making it a Neptune-sized exoplanet. Studying its atmosphere helps astronomers understand the formation of ice giant planets.
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