Geminga
X-ray pulsar in the constellation Gemini / From Wikipedia, the free encyclopedia
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Geminga /ɡəˈmɪŋɡə/ is a gamma ray and x-ray pulsar source thought to be a neutron star approximately 250 parsecs[1] (around 800 light-years) from the Sun in the constellation Gemini.
Quick Facts Constellation, Right ascension ...
Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Gemini |
Right ascension | 06h 33m 54.15s |
Declination | +17° 46′ 12.9″ |
Apparent magnitude (V) | 25.5 |
Characteristics | |
Evolutionary stage | Pulsar |
Astrometry | |
Distance | 815 ly (250+120 −62[1] pc) |
Details | |
Age | 342,000 years |
Other designations | |
SN 437, PSR B0633+17, PSR J0633+1746 | |
Database references | |
SIMBAD | data |
Close
Its name, attributed by its discoverer Giovanni Bignami, is both a contraction of Gemini gamma-ray source, and a transcription of the words ghè minga (pronounced [ɡɛ ˈmĩːɡa]), meaning "it's not there" in the Milanese dialect of Lombard.[2] The name was approved by the International Astronomic Union on 4 April 2022.[3]