R Leonis

R Leonis (short R Leo ) is a variable star Mira type in the western part of the constellation Leo.

The apparent brightness of R Leonis varies between 4.31 and 11.65 like with a period of 312 days. The maximum brightness R Leonis is good to see with the naked eye, at the minimum is to his observation a telescope with at least 7 centimeters lens aperture necessary.

R Leonis belongs to the spectral class M8IIIe and is 300 light-years from the Sun.