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4151 Alanhale
4151 Alanhale, provisional designation , is a carbonaceous Themistian asteroid from the outer region of the asteroid belt, approximately 19 kilometers in diameter. It was discovered by the American astronomer couple Carolyn Shoemaker, Carolyn and Eugene Shoemaker at the U.S. Palomar Observatory, California, on 24 April 1985. It was named for American astronomer Alan Hale (astronomer), Alan Hale. Orbit and classification ''Alanhale'' is a member of the Themis family, a dynamical family of outer-belt asteroids with nearly coplanar ecliptic, ecliptical orbits. It orbits the Sun in the Kirkwood gap, outer main-belt at a distance of 2.7–3.6 Astronomical unit, AU once every 5 years and 7 months (2,038 days). Its orbit has an orbital eccentricity, eccentricity of 0.14 and an orbital inclination, inclination of 1Degree (angle), ° with respect to the ecliptic. It was first identified as at Zimmerwald Observatory in 1968, extending the body's observation arc by 17 years prior to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carolyn Shoemaker
Carolyn Jean Spellmann Shoemaker (June 24, 1929 – August 13, 2021) was an American astronomer and a co-discoverer of Comet Shoemaker–Levy 9, Comet Shoemaker–Levy 9. She discovered 32 comets (then a record for the most by an individual) and more than 500 asteroids. Having earned degrees in history, political science, and English literature, she had little interest in science until she met and married geologist Eugene Merle Shoemaker. Her career in astronomy began when she demonstrated good Stereopsis, stereoscopic vision, a particularly valuable quality for looking for objects in near-Earth space. Despite the fact that her degrees were not in science, having that visual ability motivated the California Institute of Technology (Caltech) to hire her as a research assistant on a team led by her husband. She went on to making record-setting discoveries in the field of astronomy, as well as being awarded honorary degrees and many profession awards. Personal life Shoemaker ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
