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Pi
Cool red starIts story
Pi Leonis glows 406 light-years away as a red M-type giant —one of the few markedly cool stars visible to the naked eye in Leo. Its reddish tone, perceptible under a clean sky, betrays a vast atmosphere laden with titanium oxides; if we could resolve its disc, it would dwarf the Sun many times over. Its slow light takes more than four centuries to reach us.
- Constellation
- Leo
- Apparent magnitude
- 4.68
- Distance
- 406.2 light years
- Coordinates (J2000)
- RA 150.053° · Dec 8.044°
- Catalogue
- HIP 49029 · HD 86663
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