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R Leporis

The red giant, which is a Mira variable with a period of 430 days, is the reddest star we know. On its with 2050 kelvin very cool surface many carbon compounds can be found.

Constellation: Lepus
Distance: 1100 light-years
Spectral class: C6
Visual magnitude: 5.5 - 11.7
Luminosity: max. 6000 * Sun
Mass: 2.5 - 5 * Sun
Diameter: max. 500 * Sun

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    R Leporis
Photo: Adam Block/NOAO/AURA/NSF

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