- The Lutetian is, in the geologic timescale, a stage or age in the Eocene. It spans the time between 47.8 and 41.2 Ma. The Lutetian is preceded by the Ypresian and is followed by the Bartonian. Together with the Bartonian it is sometimes referred to as the Middle Eocene Subepoch.
- Bellatrix (stars.astro.illinois.edu)
BELLATRIX (Gamma Orionis). If constellations could talk, they might well shout “unfair” at great Orion, the Hunter, one of only four constellations to have two first magnitude stars (the others Crux, the Southern Cross, Centaurus, the Centaur, and Canis Major, Orion’s Hunting Dog).