Definition of thanksgiving for English Language Learners. Thanksgiving : the fourth Thursday in November in the U.S. or the second Monday in October in Canada celebrated as a legal holiday for people to be thankful for what they have.
A galaxy contains stars, gas and dust. In a spiral galaxy like the Milky Way, the stars, gas, and dust are organized into a bulge, a disk containing spiral arms, and a halo.. Elliptical galaxies have a bulge-like central region and a halo, but do not have a disk.
Gienah Corvi is the right-hand star at the top of the box and one of the pointers to Spica (the other Algorab), as if Spica really needs such. Though the brightest star in the constellation, just over the second magnitude line to third (2.59), Bayer oddly gave it the Gamma designation, Alpha a fourth magnitude star beneath the right-hand side of the prominent box.