hip-74582

Its story

In the Southern Triangle, 1,173 light years away, this white A-type star with a variable nature shines at magnitude 5.75. Its light set out around the year 853, when the Vikings were besieging Paris for the first time under Charles the Bald. Variable and white, it fits in the family of stars whose brilliance oscillates from internal causes, a photometric breathing that astronomers track with light curves carefully built over months.