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Star in the constellation Musca From Wikipedia, the free encyclopedia
GR Muscae, also known as 2S 1254-690 is a binary star system in the constellation Musca composed of a neutron star of between 1.2 and 1.8 times the mass of the Sun and a low-mass star likely to be around the mass of the Sun in close orbit.[2] A magnitude 19 blue star was pinpointed as the optical counterpart of the X-ray source in 1978.[3] Its apparent magnitude varies from 18 to 19.1 over a period of 0.16 days.[4]
Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
---|---|
Constellation | Musca |
Right ascension | 12h 57m 37.153s [1] |
Declination | −69° 17′ 18.98″ [1] |
The neutron star has an accretion disk that takes around 6.74 days to complete a revolution, and is inclined at an angle to the incoming stream of material from the donor star.[2]
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