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Algol, in astronomy
(Encyclopedia) AlgolAlgolălˈgŏl [key], famous variable star in the constellation Perseus; Bayer designation β Persei; 1992 position R.A. 3h07.7m, Dec. +40°55′. Algol's variation in apparent magnitude…transit instrument
(Encyclopedia) transit instrument or transit, telescope devised to observe stars as they cross the meridian and used for determining time. Its viewing tube swings on a rigid horizontal axis…dwarf star
(Encyclopedia) dwarf star: see white dwarf.Dog Star
(Encyclopedia) Dog Star: see Sirius.serpent star
(Encyclopedia) serpent star: see brittlestar.sea star
(Encyclopedia) sea star, also called starfish, echinoderm of the class Asteroidae, common in tide pools. Sea stars vary in size from under 1&fslsh;2 in. (1.3 cm) to over 3 ft (90 cm) in diameter…North Star
(Encyclopedia) North Star: see Polaris.supergiant star
(Encyclopedia) supergiant star: see red giant.evening star
(Encyclopedia) evening star or morning star, planet that becomes visible in the western sky shortly after sunset or in the eastern sky shortly before sunrise. It can usually be seen in twilight, when…feather star
(Encyclopedia) feather star, common name of a class of echinoderms that, as juveniles, are attached to the sea bottom by a stalk with rootlike branches; the mouth side faces upward. In the adult…Trending
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