Why Bright Stars Show Diffraction Spikes in a Newtonian Telescope
Learn why Newtonian telescopes produce diffraction spikes on bright stars and discover practical ways to reduce or reshape them for cleaner views.
Practical, up-to-date and beginner-friendly guides. Fast, mobile-first and easy to read.
Explore Guides →
Learn why Newtonian telescopes produce diffraction spikes on bright stars and discover practical ways to reduce or reshape them for cleaner views.
Complete guide to watching the Draconids meteor shower in early October from northern latitudes, including peak times and viewing tips.
Can't reach focus with a 2-inch diagonal on your refractor? Learn the real causes and fixes for back focus and in-travel problems fast.
UHC or OIII for the Veil Nebula under Bortle 6 skies? Compare real-world performance, pick the right filter, and boost contrast tonight.
Learn how to observe lunar libration and glimpse far-side limb craters using a 4-inch telescope, with timing tips and target lists.
Learn how to find and enjoy M13, the Great Hercules Cluster, using simple 7x35 binoculars from a suburban backyard.