Learn how to find Sirius and Procyon in the evening sky this week. Step-by-step guide includes constellation positions, companion stars and observing times.

The Big Dipper, an asterism within the Ursa Major constellation, is readily observable from mid-to-high northern latitudes and its appearance varies throughout the year due to Earth's orbit and ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The constellations march ever westward from month to month, with old ones disappearing into the ...