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| | '''916 America''' is a [[minor planet]] that is orbiting the [[Sun]] in the [[main belt]] between [[Mars]] and [[Jupiter]]. | | '''916 America''' is a [[minor planet]] that is orbiting the [[Sun]] in the [[main belt]] between [[Mars]] and [[Jupiter]]. |
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| − | It was discovered on [[7 August]] [[1915]] by the [[Soviet]] [[astronomer]] Grigory Nikolaevich Neujmin at Simeis, [[Ukraine]].<ref name="ssd_jpl" /> It was originally called '''916<sup>Σ</sup>I''', but was renamed ''916 America'' on [[24 February]] [[1923]] after the Council of Astronomers at Pulkovo Observatory decided to pay tribute to "the friendly relations of the astronomical observatories and astronomers".<ref>[http://adsabs.harvard.edu/abs/1923PA.....31S.364. Asteroid (916) America] (1923). Popular Astronomy, volume 31, page 364.</ref> Another possible reason for the name was as a mark of thankfulness for the help given during the famine in Crimea by the American Relief Administration under President [[Herbert Hoover]].<ref>{{cite book | title=Dictionary of Minor Planet Names | url=https://books.google.com/books?id=KWrB1jPCa8AC&pg=RA1-PA82&lpg=RA1-PA82&dq=%22916+america%22&source=web&ots=BENQ5UH70A&sig=hb1MkEUxTR6M9MHH0jO15y_Olo0 | first=Lutz D. | last= Schmadel | year=2003 | publisher=Springer | isbn=3540002383 | page=82}}</ref> | + | It was discovered on [[7 August]] [[1915]] by the [[Soviet]] [[astronomer]] Grigory Nikolaevich Neujmin at Simeis, [[Ukraine]].<ref name="ssd_jpl" /> It was originally called '''916<sup>Σ</sup>I''', but was renamed ''916 America'' on [[24 February]] [[1923]] after the Council of Astronomers at Pulkovo Observatory decided to pay tribute to "the friendly relations of the astronomical observatories and astronomers".<ref>[http://adsabs.harvard.edu/abs/1923PA.....31S.364. Asteroid (916) America] (1923). Popular Astronomy, volume 31, page 364.</ref> Another possible reason for the name was as a mark of thankfulness for the help given during the famine in Crimea by the American Relief Administration under President [[Herbert Hoover]].<ref>{{cite book | title=Dictionary of Minor Planet Names | url=https://books.google.com/books?id=KWrB1jPCa8AC&dq=%22916+america%22&pg=RA1-PA82 | first=Lutz D. | last= Schmadel | year=2003 | publisher=Springer | isbn=3540002383 | page=82}}</ref> |
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| − | In 1986, believing that the asteroid was of S-type and that it had a diameter of 15 km, the length of 916 America's day was thought to be 38 hours.<ref name="1986_Dimartino">{{cite journal | url=http://articles.adsabs.harvard.edu//full/1986acm..proc...81D/0000084.000.html | title=A Photoelectric Program for Small and Unusual Asteroids | last=Dimartino | first=M. | journal=Asteroids, comets, meteors II; Proceedings of the International Meeting, Uppsala, Sweden, June 3-6, 1985. Uppsala, Sweden, Astronomiska Observatoriet | year=1986}}</ref> Observations by the Infrared Astronomical Satellite have since shown that it has a diameter of 33.2±1.3 km, with an [[absolute magnitude]] of 11.20 and an [[albedo]] (the extent to which it reflects light) of 0.053±0.004.<ref name="ssd_jpl" />
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| | + | In 1986, believing that the asteroid was of S-type and that it had a diameter of 15 km, the length of 916 America's day was thought to be 38 hours.<ref name="1986_Dimartino">{{cite journal | url=http://articles.adsabs.harvard.edu//full/1986acm..proc...81D/0000084.000.html | title=A Photoelectric Program for Small and Unusual Asteroids | last=Dimartino | first=M. | journal=Asteroids, Comets, Meteors II; Proceedings of the International Meeting, Uppsala, Sweden, June 3-6, 1985. Uppsala, Sweden, Astronomiska Observatoriet | year=1986| page=81 | bibcode=1986acm..proc...81D }}</ref> Observations by the Infrared Astronomical Satellite have since shown that it has a diameter of 33.2±1.3 km, with an [[absolute magnitude]] of 11.20 and an [[albedo]] (the extent to which it reflects light) of 0.053±0.004.<ref name="ssd_jpl" /> |
| | == References == | | == References == |
| | {{Reflist}} | | {{Reflist}} |