The magnetar 1E 1613 - at the centre of RCW 103, the remains of a supernova explosion located about 9,000 light years from Earth - rotates once every 24,000 seconds (6.67 hours), the researchers found.
Earth Rotation: Latest News, Photos, Videos on Earth Rotation
NASA spots slowest known magnetar
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Nasa Spots Slowest Known Magnetar
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NASA spots slowest known magnetar
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