The Ring Nebula (M57)'s central star, a challenging observational target, was first noted around 1795 by Friedrich von Hahn using a 12-inch reflector, despite being missed by other observers with ...

“Which is better, a 3-inch refractor or 6-inch reflector?” That’s the kind of issue debated on astronomy forums. Oddly enough, this page has never offered equipment advice. Let’s do it now. But before ...

THE choice of the best aperture for a very large telescope is less simple than it seems. The greater the generosity of a prospective donor the greater the care one should take not to overstep ...