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Xi-1
Variable starIts story
Xi-1 Canis Majoris is a Beta Cephei-type variable: it pulses, inflating and deflating its atmosphere in cycles of a few hours. Blue and hot, it lives nearly 1,400 light-years away, in the celestial pack that trails Orion across the winter sky. Its subtle heartbeat makes it one of the finest clocks in the Greater Dog —imperceptible to the naked eye, palpable to the photometer.
- Constellation
- Canis Major
- Apparent magnitude
- 4.34
- Distance
- 1382.2 light years
- Coordinates (J2000)
- RA 97.964° · Dec -23.418°
- Catalogue
- HIP 31125 · HD 46328
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