Sun Exposure Seat Finder
Find the best side to sit on a bus to avoid direct sunlight or find the sun side based on your travel route.
Start typing to search tools...
Track the current moon phase, illumination percentage, moonrise, and moonset times for your specific coordinates. Find the next full moon date to plan stargazing or night photography.
Select a city to automatically load coordinates.
| Date | Moon Phase | Illumination | Moonrise | Moonset | Transit Alt. |
|---|
The moon serves as both a beautiful focal subject and a primary source of light pollution in night sky photography. Understanding current lunar conditions is critical for planning successful outdoor activities. Our moon visibility checker calculates the exact lunar parameters for any location on Earth. Whether you are searching for the next full moon date to capture dramatic moonlit horizons, or seeking total darkness for Milky Way photography during a New Moon, this tool provides the analytical data you need.
By computing the moon phase, distance, rise, and set times, the tool functions as a fully private, client-side astronomical dashboard. Unlike competing calculators, all mathematical formulas are executed locally within your web browser, ensuring zero tracking or data storage.
Planning stargazing sessions requires precise coordinates and timing. Follow these steps to generate your forecast:
The visual appearance of the Moon changes because of its changing geometry relative to the Sun and Earth. The angle between the Moon and the Sun as viewed from Earth is known as the elongation angle. This angle determines the illumination fraction and is used by our moon phase calculator to classify the current state of the moon:
| Moon Phase | Phase Age (Days) | Illumination Range | Best For |
|---|---|---|---|
| New Moon | 0 to 1.5 days | 0% to 1% | Stargazing, meteor shower watching, deep-sky nebula astrophotography |
| First Quarter | 7.4 days | 50% | Viewing lunar craters along the terminator line using telescopes |
| Full Moon | 14.8 days | 100% | Night landscape photography, moonlit trail hiking, lunar eclipse viewing |
| Third Quarter | 22.1 days | 50% | Early morning moon observations and tracking western sky paths |
Calculating precise moonrise and moonset times is essential because the moon does not rise at the same time every day. On average, the moon rises 50 minutes later each day due to its eastward orbit. By matching moonrise times with sunset times, photographers can capture the "lunar golden hour," which is when a giant full moon rises over mountains or skylines during the warm ambient light of civil twilight. Use the calculator to discover these intersections and plan your photography calendar.
The calculator scans the moon's illumination cycle starting from the current date. It computes the geocentric phase angle of the moon relative to the sun for successive time offsets. The exact moment of the full moon is reached when the illumination fraction peaks at 100%, corresponding to an elongation angle of 180 degrees from the sun.
The Moon orbits the Earth in the same direction that the Earth rotates, but its orbital motion takes about 27.3 days. Because of this orbital progress, the Moon moves eastward relative to the stars and Sun by about 13 degrees each day. As a result, the Earth has to rotate an extra 13 degrees (about 50 minutes) each day for the Moon to appear at the same position in the sky, causing moonrise and moonset times to slide later by roughly 50 minutes daily.
Yes. All astronomical computations, date conversions, and coordinate calculations are performed locally on your device in your web browser. No geolocation data, search terms, or timezone parameters are ever transmitted to any external servers, giving you complete privacy-first planning.
The best phase for viewing stars, meteor showers, and deep-sky objects (like nebulae and galaxies) is the New Moon phase. During this time, the Moon is positioned between the Earth and the Sun, making its night-facing side turn toward us, resulting in dark, moonless skies. Conversely, the Full Moon phase is excellent for landscape photography but washes out faint deep-sky structures.
The lunar cycle progresses through eight distinct phases: New Moon (0% illumination), Waxing Crescent (1% to 49%), First Quarter (50%), Waxing Gibbous (51% to 99%), Full Moon (100%), Waning Gibbous (99% to 51%), Third Quarter (50%), and Waning Crescent (49% to 1%). The calculator determines the exact percentage of the visible disk illuminated based on the geocentric phase angle.
Find the best side to sit on a bus to avoid direct sunlight or find the sun side based on your travel route.
Calculate 3D printing costs including material, labor, electricity, and machine wear. Get instant suggested pricing models for commercial printing quotes.
Calculate your exact age in years, months, and days from your date of birth.
Estimate API costs for GPT-4, Claude 3, and Gemini. Calculate token usage based on text length and compare pricing models for your AI projects.