Nights on Earth lists astronomical events including meteor showers and planetary conjunctions.
Free
24 alternativesMoonCalc
MoonCalc lets visitors explore lunar history with an online calendar and date controls.
About MoonCalc
MoonCalc is a free-standing web application that calculates Moon position and lunar data for a chosen date and location. It shows moonrise, culmination, moonset, Moon distance, altitude, azimuth, and shadow length at selected object heights. A calendar view and an interactive map display the Moon's path across the sky, with date ranges that cover years from -2999 to 3000. The site also offers a reverse calculation that finds dates from a given Moon altitude and azimuth over 3, 6, or 12-month periods.
The site is operated by a single named developer and is not open source. The homepage does not state any pricing, so known_pricing is unknown. A donation option is available through PayPal, with the amount chosen by the visitor. The site has a German counterpart at mondverlauf.de. Related sites cover the Sun, planets, and satellites.
Key features
- Moonrise, culmination, moonset, distance, altitude, and azimuth for a selected location
- Shadow length calculated for objects at chosen heights in meters
- Interactive map showing the Moon's trajectory across the sky
- Moon calendar with selectable year ranges from -2999 to 3000
- Reverse calculation from Moon altitude and azimuth over 3, 6, or 12-month periods
- Advanced values including JDE, DeltaT, GMST, declination, and next perigee and apogee
Best for: People who need detailed Moon position, rise and set times, or calendar data for a specific location.
Good for
- Combines calendar data, position values, and a map in one web page
- Current data and the map can be printed
- Available in English, with a German version at mondverlauf.de
Watch out for
- The homepage does not state pricing
- The source code is not published
MoonCalc at a glance
- Website
- mooncalc.org
- Category
- Education & Learning › Space & Astronomy
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
MoonCalc alternatives
Tools and sites you could use instead, ranked by how closely they match.
SunCalc lets users examine the path of the Sun with an online calendar and date controls.
First Men on the Moon offers an interactive experience with audio and video about the Apollo 11 lunar landing.
The Apollo Image Atlas provides photographs of the Moon captured by Apollo missions, with links to NASA lunar image resources.
The 100,000 Stars visualization presents nearby stars in 3D and provides controls for color and temperature.
The Artemis II Photo Timeline organizes mission photographs by date across March and April 2026.
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MoonCalc FAQ
Can I get Moon data for a location other than my own?
Yes. Latitude and longitude can be set for the selected location, and the page shows height and time zone for it.
Can I work backward from a Moon position to a date?
Yes. The reverse calculation uses Moon altitude and azimuth and searches over 3, 6, or 12-month periods.
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