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100000 Astronautica

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Discovered by  J. B. Gibson
MPC designation  100000 Astronautica
Minor planet category  main-belt (inner)
Discovered  28 September 1982
Discoverer  James B. Gibson
Asteroid group  Asteroid belt
Discovery date  28 September 1982
Alternative names  1982 SH1 · 2002 CW115
Orbital period  960 days
Orbits  Sun
Discovery site  Palomar Observatory
Named after  50th anniv. Space Age (Latin: star sailor)
Similar  Solar System, Sun, 1943 Anteros

100000 Astronautica, provisionally designated 1982 SH1, is an asteroid from the inner asteroid belt discovered on 28 September 1982 by James B. Gibson at Palomar Observatory, California, United States.

The asteroid orbits the Sun at a distance of 1.7–2.1 AU once every 2 years and 8 months (960 days). Its orbit has an eccentricity of 0.09 and an inclination of 21° with respect to the ecliptic. As no precoveries were taken, the asteroid's observation arc begins with its discovery observation in 1982. It has an absolute magnitude of 16.9.

This minor planet marked the milestone of the 100,000th numbered minor planet in October 2005. It was named in October 2007, by the International Astronomical Union's Committee on Small Body Nomenclature to recognize the 50th anniversary of the start of the Space Age, as marked by the launch of the Soviet Sputnik spacecraft into orbit on 4 October 1957 (M.P.C. 60731). The number 100,000 is significant because it marks the altitude in meters where outer space begins, as delineated by the Kármán line established by the Fédération Aéronautique Internationale. The name 'Astronautica' is Latin for 'star sailor'.

References

100000 Astronautica Wikipedia


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