182 Elsa is a Main belt asteroid. It is an S-type asteroid.
It was discovered by Johann Palisa on February 7, 1878. The origin of the name is uncertain; it may be named after the character in the legend of Lohengrin perpetuated by Richard Wagner's opera of the same name.
It rotates very slowly; its rotation period (or "day") is about 3.3 Earth days. A possible companion has been proposed to explain the slow rotation.
Elsa has very amplified lightcurve indicating an elongated or irregular body. It was one of five minor planets included in the 1993 study, Transition Comets -- UV Search for OH Emissions in Asteroids, which was research involving amateur astronomers who were permitted to make use of the Hubble Space Telescope.
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