RX J1856.5−3754
Star in the constellation Corona Australis / From Wikipedia, the free encyclopedia
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RX J1856.5−3754 (also called RX J185635−3754, RX J185635−375, and various other designations) is a neutron star in the constellation Corona Australis. At approximately 400 light-years from Earth, it is the closest neutron star discovered to date.
Quick Facts Constellation, Right ascension ...
Observation data Epoch 1996.7 Equinox J2000.0[1] | |
---|---|
Constellation | Corona Australis |
Right ascension | 18h 56m 35s[1] |
Declination | −37° 54′ 36″[1] |
Apparent magnitude (V) | ~25.6[1] |
Details | |
Mass | 0.9 M☉ |
Radius | 19–41 km |
Age | 1 Myr |
Other designations | |
RX J185635−3754, 1ES 1853−37.9, 1RXS J185635.1−375433 | |
Database references | |
SIMBAD | data |
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