Astronomy Without a Telescope
- Ruchbah (stars.astro.illinois.edu)
And just over the line into third magnitude (2.68), Ruchbah is appropriately the fourth brightest star in the constellation, following right behind Gamma.
- Delta Cassiopeiae (Wikipedia)
Delta Cassiopeiae (δ Cassiopeiae, abbreviated Delta Cas, δ Cas) is an eclipsing binary star system in the northern circumpolar constellation of Cassiopeia. Based on parallax measurements taken during the Hipparcos mission, it is approximately 99.4 light-years (30.5 parsecs) from the Earth.[