AD Leonis

AD Leonis, also known as Gliese 388, is a red dwarf star. It is located about 16.2 light-years from the Sun in the constellation Leo. This star is classified as a main sequence star with a spectral classification of M3.5V. One of its most interesting features is that it is a flare star, which means it sometimes suddenly becomes brighter before returning to its normal brightness. These changes in brightness happen in a random and unpredictable way, making AD Leonis an intriguing object of study for astronomers.

Properties

AD Leonis is a small red star located about 16.2 light-years from the Sun in the constellation Leo. It is what astronomers call a flare star, meaning it sometimes suddenly shines much brighter for a short time.

This star was first noticed to change its brightness in 1949. Scientists have studied its powerful flares, which can be seen across many types of light, including X-rays. AD Leonis is relatively young and active, with large areas on its surface that are always swirling with magnetic activity.

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.