... Star Atlas . ... Young super-Jupiter found wandering without a parent . ... Young, low-mass star found . Astronomers detect a binary companion to Beta Crucis. ... Beta (β) Crucis shines as the large blue star on the left in this ground-based image of the Southern Cross. ... The companion star was discovered accidentally while the research team, led by Prof. David Cohen of Swarthmore College, was using the orbiting Chandra X-ray Observatory to study the x-rays emitted by beta Crucis itself. ...