AD Leonis

AD Leonis, also known as Gliese 388, is a red dwarf star. It is about 16.2 light-years from the Sun in the constellation Leo. This star is a main sequence star with a spectral classification of M3.5V.

One interesting thing about AD Leonis is that it is a flare star. This means it sometimes suddenly becomes brighter and then goes back to its normal brightness. These brightness changes happen in a random and unpredictable way, which makes AD Leonis very interesting to astronomers.

Properties

AD Leonis is a small red star about 16.2 light-years from the Sun. It is in the constellation Leo. This star is called a flare star because it sometimes shines much brighter for a short time.

People first saw its brightness change in 1949. Scientists have studied its big flares. These flares can be seen in many kinds of light, such as X-rays. AD Leonis is young and active. It has large areas on its surface where magnetic activity is always happening.

Search for planets

Scientists have looked for planets around AD Leonis for many years. Early studies in the 1940s and 1960s thought there might be a companion star, but later searches did not find one. In 2018, some signs suggested a small planet might be there, but more recent studies show that the star’s own activity is likely causing these signs, not a planet.

So far, no planets have been confirmed around AD Leonis. Researchers have ruled out the presence of larger planets that could have been easily detected.