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449 Hamburga is a large Main belt asteroid that was discovered by German astronomers Max Wolf and A. Schwassmann on October 31, 1899 in Heidelberg. It is classified as a C-type asteroid and is probably composed of carbonaceous material. It is named for the city of Hamburg in Germany.〔((449) Hamburga )〕 The name was announced in 1901 during a festival held by the Mathematical Society of Hamburg.〔 In the 1980s and 1990s, NASA considered a spacecraft mission to the asteroid, including a tie-in with McDonald's.〔(Mars rover Curiosity’s other mission: publicity machine - December 5, 2012 )〕 The mission plan called for a launch in 1995 and a flyby of Hamburga in early 1998.〔(Transactions of the International Astronomical Union: Proceedings of the ... edited by Derek McNally ) (Google Books link)]〕 In August 1988 in the United States' city of Baltimore, a P. Weissman addressed the International Astronomical Union on a mission to this asteroid (449), a mission which also include a rendezvous with Comet Kopf.〔(Transactions of the International Astronomical Union: Proceedings of the ... edited by Derek McNally ) (Google Books link)]〕 See Comet Rendezvous Asteroid Flyby for more on the mission to the comet. This mission can also be compared to Rosetta, which successfully flew by two minor planets and orbited a Comet during its approach to the Sun in the early 21st century. P. Weissman later worked on the Rosetta mission〔( Planetary Ices: People )〕 It was predicted that 449 occulted the star HIP 1424 in July 2013.〔(Asteroid Occultation Updates )〕 449 Hamburga was identified as one of three asteroids that were likely to be a parent body for chondrites along with 304 Olga and 335 Roberta.〔(Lunar and planetary science: abstracts of papers submitted to the ... Lunar and Planetary Science Conference, Volume 27, Part 1 - Lunar and Planetary Institute, Jan 1, 1996 )〕 All three asteroids were known to have low-albedo (not reflect as much light) and be close to "meteorite producing resonances".〔 Chrondrites are the most common type of meteor found on Earth, accounting for over 80% of all meteors.〔(ASU - Chondrites )〕 They are named for the tiny spherical silicate particles that are found inside them (those particles are called chondrules).〔 ==See also== *List of asteroids formerly targeted for spacecraft visitation *Comet Rendezvous Asteroid Flyby *723 Hammonia (also named for the city of Hamburg) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「449 Hamburga」の詳細全文を読む スポンサード リンク
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