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twinkling
(Encyclopedia)twinkling, in astronomy: see seeing. ...Cannon, Annie Jump
(Encyclopedia)Cannon, Annie Jump, 1863–1941, American astronomer, b. Dover, Del. In 1897 she became an assistant in the Harvard College Observatory, where (1911–38) she was astronomer and curator of astronomica...False Cross
(Encyclopedia)False Cross, in astronomy: see Carina. ...Xena
(Encyclopedia)Xena, in astronomy: see Eris.gamma-ray astronomy
(Encyclopedia)gamma-ray astronomy, study of astronomical objects by analysis of the most energetic electromagnetic radiation they emit. Gamma rays are shorter in wavelength and hence more energetic than X rays (see...encounter theory
(Encyclopedia)encounter theory, in astronomy, see solar system. ...aether
(Encyclopedia)aether: see ether, in physics and astronomy. ...population I and II
(Encyclopedia)population I and II, in astronomy: see stellar populations. ...Poseidon
(Encyclopedia)Poseidon pōsīˈdən [key], in Greek religion and mythology, god of the sea, protector of all waters. After the fall of the Titans, Poseidon was allotted the sea. He was worshiped especially in conne...Ultima Thule
(Encyclopedia)Ultima Thule, in astronomy and space exploration, nickname for Arrokoth. ...Browse by Subject
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