Cassiopeia is a northern hemispheric constellation which means it can't be seen easily or at all from the southern hemisphere. The brightest star in Cassiopeia is Schedar. There are 13 Extrasolar Planets (Exoplanets) in this constellation that are detailed on this site.
King Solomon lived to be 80 years old. King Solomon is most known  for asking for and receiving the gift of 'wisdom' to rule God's  peoples.
We know that David reigned 40 years and that Solomon reigned for 3 years prior to commencing the building of the Temple. Therefore, this 450 year period in Judges, blows out to 493 years.