
Calvera is a city and comune in the province of Potenza, southern Italy. ...
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http://en.wikipedia.org/wiki/Calvera
[X-ray source] In astronomy Calvera is the nickname—based on the villain in the 1960 film The Magnificent Seven—of an X-ray source known as 1RXS J141256.0+792204 in the ROSAT All-Sky Survey Bright Source Catalog (RASS/BSC). It lies in the constellation Ursa Minor and is identified as an isolated neutron star. It is one of the closest of...
Found on
http://en.wikipedia.org/wiki/Calvera_(X-ray_source)
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