AO Mensae
AO Mensae is a single variable star in the southern circumpolar constellation of Mensa (constellation), Mensa. It is too faint to be viewed with the naked eye, having an apparent visual magnitude that ranges from 9.96 down to 10.18. The star is 128 light years distant from the Sun based on stellar parallax, parallax, and is drifting further away with a radial velocity of +16 km/s. It is a member of the Beta Pictoris moving group, a loose stellar association, association of young stars moving through the galaxy. This is an orange-hued K-type main-sequence star with a stellar classification of K4Ve, where the 'e' suffix indicates emission line, emission features in the stellar spectrum, spectrum. It is young star and an X-ray astronomy, X-ray source, one of the brightest such X-ray emitters in the solar neighborhood, and is categorized as a BY Draconis variable, although there is some uncertainty in this assignment. It is spinning with a period of 2.7 days and ...
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