BinoStella
Simple Sky Maps for Stargazing
Create simple, printable star charts for stargazing, binocular astronomy, and beginner telescope observing.
Printable Vector Star Charts
Export lossless, high-contrast PDF star charts. Designed specifically for paper printing with white backgrounds to save ink and preserve your night vision in the field.
Equipment FOV Rings
Instantly overlay true-to-scale Field of View (FOV) circles for your specific binoculars, finderscopes, or eyepieces. Know exactly what you'll see before you look.
Guided Star Hopping
Learn the night sky the traditional way. Follow curated, step-by-step star hopping paths to locate faint deep-sky objects without relying on computerized GoTo mounts.
Offline Use Anywhere
True stargazing happens off the grid. Install BinoStella on your device and access the entire atlas at dark sky sites with zero internet connectivity.
Frequently Asked Questions
Yes, the core interactive star atlas and printable charts are completely free. We designed it to be an accessible tool for everyone starting their stargazing journey.
Not at all! BinoStella is specifically optimized for naked-eye observing, binoculars, and small beginner telescopes. Our charts avoid confusing deep-sky clutter.
Yes! The entire application is a Progressive Web App (PWA). Once you load it, the charts and data work completely offline—perfect for dark sky sites without internet.
Saturn is composed mostly of the lightest elements, hydrogen and helium. Because of its massive volume relative to its mass, its average density is actually lower than that of water.
Alphecca is the dominant, bright star (magnitude 2.2) in the center of the constellation's arc. T Coronae Borealis is significantly fainter (magnitude 10.2) and is located well to the east of Alphecca, just outside the main 'C' curve.
Read more about Locating T Coronae Borealis in the Night Sky →
The Orionid Meteor Shower will reach its maximum activity during the late night of October 21 and the pre-dawn hours of October 22, 2026.