Lycaenid butterfly has been named after him. An exoplanet around star HAT-P-42 (now named Lerna) is named after him as part of the IAU's NameExoWorlds...

published on 17 December 2019, with an additional pair of names (for the star HAT-P-21 and its planet) approved on 1 March 2020. An additional two star names...

HAT-P-11b (or Kepler-3b) is an extrasolar planet orbiting the star HAT-P-11. It was discovered by the HATNet Project team in 2009 using the transit method...

A homburg is a semi-formal hat of fur felt, characterized by a single dent running down the centre of the crown (called a "gutter crown"), a wide silk...

Telescope Network (HATNet) project is a network of six small fully automated "HAT" telescopes. The scientific goal of the project is to detect and characterize...

The bowler hat, also known as a Coke hat, billycock, bob hat, bombín (Spanish) or derby (United States), is a hard felt hat with a rounded crown, originally...

The Cat in the Hat is a 1957 children's book written and illustrated by American author Theodor Geisel, using the pen name Dr. Seuss. The story centers...

A campaign hat, sometimes called campaign cover, is a broad-brimmed felt or straw hat, with a high crown, pinched symmetrically at the four corners. The...

HAT-P-17 is a K-type main-sequence star about 92.4 parsecs (301 ly) away. It has a mass of about 0.857 ± 0.039 M☉. It is the host of two planets, HAT-P-17b...

A fedora (/fəˈdɔːrə/) is a hat with a soft brim and indented crown. It is typically creased lengthwise down the crown and "pinched" near the front on...