Stargazer's Corner: Adventures Under the Night Sky
Simple Formulas for the Telescope Owner
Simple telescope formulas — how to calculate what you need to know about your telescopes, oculars, and binoculars.
SUNSET: -
MOON: 90% Waxing Gibbous
SUNSET: MOON: 90% Waxing Gibbous
Stargazer's Corner: Adventures Under the Night Sky
Simple telescope formulas — how to calculate what you need to know about your telescopes, oculars, and binoculars.
