182 Elsa
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Orbital characteristics 1 | |
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Orbit type | Main belt |
Semimajor axis | 2.417 AU |
Perihelion distance | 1.968 AU |
Aphelion distance | 2.866 AU |
Orbital period | 3.76 years |
Inclination | 2.00° |
Eccentricity | 0.186 |
Physical characteristics 1 | |
Diameter | 43.7 km |
Rotation period | 80 hours |
Spectral class 5 | S |
Abs. magnitude | 9.12 |
Albedo 4 | 0.208 |
History 2 | |
Discoverer | J. Palisa, 1878 |
182 Elsa is a Main belt asteroid. It is an S-type asteroid.
It was found by Johann Palisa on February 7, 1878. What it is named after 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 moon has been suggested to explain the slow rotation.
Elsa has very amplified lightcurve indicating a stretched or non-spherical 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 non-professional astronomers who were allowed to make use of the Hubble Space Telescope.
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181 Eucharis | 182 Elsa | 183 Istria
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Near-Earth asteroids · Main belt · Jupiter Trojans · Neptune Trojans · Comets · Kuiper belt · Oort cloud |