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.[3] It is one of the closest of its kind to Earth.[4]
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Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
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Constellation | Ursa Minor |
Right ascension | 14h 12m 55.867s[1] |
Declination | +79° 22′ 03.895″[1] |
Characteristics | |
Evolutionary stage | Neutron star |
Astrometry | |
Distance | ≤2000[1] pc |
Details[1] | |
Rotation | 59.199071070 ms |
Age | 285,000 years |
Other designations | |
Database references | |
SIMBAD | data |
The object is so-named because the seven previously known isolated neutron stars are known collectively as 'The Magnificent Seven'.
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