messier 99

"Pinwheel, pinwheel spinning around. Look at my Pinwheel and see what I found. Pinwheel, pinwheel, breezy and bright. Spin me good morning, spin me good night." -Janet Gardner It's time for another Messier Monday, where each week, one of the 110 deep-sky objects that make up the famed Messier Catalogue -- the first large, accurate catalogue of non-cometary objects -- gets an in-depth treatment. These objects are not only a good representation of the brightest deep-sky objects visible from Earth, they're a good sample of the different types of objects visible from any random location in the…