The Milky Way: January-February

Abstract

The Milky Way at the start of a new year runs diagonally through the constellation Monoceros and in fact the galactic equator runs more or less straight along this path (see Star Chart 2.1). In the early part of January the constellation transits and is at its best for both northern and southern hemisphere observers. When we look out at Monoceros, we are actually peering deep into the Orion Arm of the Galaxy, in the opposite direction to the galactic center in Sagittarius. Many beginner observers are surprised to learn this, as the area is not ablaze with the star fields and dark dust clouds that one normally associates with the Milky Way. Indeed, at first glance the area seems quite empty and barren. However, this is a misconception as there are several open clusters, nebulae and stars that warrant our attention.