The Unistellar Guide to the Messier Marathon is the ultimate travel guide to the ultimate astronomy challenge. In this free, downloadable ebook, you’ll find:
- Information on Charles Messier
- Detailed overview of the Messier catalog
- Tips for planning a Marathon
- Various Messier races to consider
- Star party etiquette
- Images of all 110 Messier objects taken by eVscope telescopes, in recommended Marathon order