http://www.skyandtelescope.com/news/52978747.html
"As the team reports in August 20th's
Astrophysical Journal, the inescapable conclusion is that
two planets within this budding solar system have collided violently —
and recently, perhaps within the past 1,000 years. The smash-up took place at a location from HD 172555 comparable to Jupiter's distance from the Sun..." HD 172555 is a mag 4.8 star near theta Pav that transits at about 8:30pm tonight.