What is this tool?

Lunar Phase Calendar is a comprehensive web application that displays accurate moon phase information for any date between 1950 and 2050. Whether you're a astronomy enthusiast, photographer, or simply curious about the night sky, this tool provides detailed lunar cycle data at your fingertips.

Features

• Real-time Moon Phase: See today's current moon phase with visibility percentage and age
• Interactive Calendar: Browse moon phases for any month and year from 1950 to 2050
• Moonrise & Moonset Times: Approximate times for when the moon rises and sets
• Phase Explanations: Learn about each of the eight moon phases
• Cycle Tracking: Track when lunar cycles begin and end

How it works

The moon phase calculations are based on astronomical algorithms that compute the moon's position relative to Earth and the Sun. The phase is determined by calculating the Julian date and the moon's age in its synodic period (the time between successive new moons).

The algorithm provides accurate phase information, illumination percentages, and approximate rise and set times. While moonrise and moonset times are approximations and may vary based on your geographic location, they provide a general guide for planning moon observations.

Best Viewing Times

• New Moon: Not visible, best time for stargazing
• Crescent Phases: Visible near sunrise or sunset
• Quarter Moons: Visible in afternoon/evening or morning
• Full Moon: Rises at sunset, sets at sunrise, visible all night

Photography Tips

The moon's appearance changes dramatically throughout its cycle. For photography enthusiasts:

• Full moons are brightest but may lack surface detail
• Quarter phases show excellent crater definition along the terminator
• Crescent moons offer beautiful opportunities for twilight compositions
• Use the calendar to plan your lunar photography sessions in advance