Calvera (X-ray source)

In astronomy, Calvera is a 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 its kind to Earth. The object is so-named because the seven previously known isolated neutron stars are known collectively as 'The Magnificent Seven'.

Calvera (X-ray source)

In astronomy, Calvera is a 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 its kind to Earth. The object is so-named because the seven previously known isolated neutron stars are known collectively as 'The Magnificent Seven'.