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.
Canis Major is home to Sirius, the brightest star in the sky, as well as to several notable deep sky objects: the Canis Major Dwarf Galaxy, the open cluster Messier 41, the emission nebula NGC 2359 (also known as Thorâs Helmet), and the colliding spiral galaxies NGC 2207 and IC 2163. FACTS, LOCATION & MAP.