Useful
The application very useful for monitoring the moon's phase and determining its condition with high accuracy. Many thanks to the developer of this app
برنامج رائع لرصد القمر
رصد القمر بدقه عالية جداً جداً
Free
About
Track the moon's phases, illumination, and rise/set times with precise astronomical calculations. View upcoming solar and lunar eclipses, and access a Hijri calendar. Get optional notifications for celestial events and enjoy an authentic Arabic interface.
✓Precise moon phase and illumination tracking
✓Sunrise, sunset, moonrise, moonset times
✓Upcoming solar and lunar eclipse coverage
✓Hijri calendar with moon phase markers
✓Customizable notifications for celestial events
✓Choice of NASA imagery or 3D terrain model
✓Full Arabic localization
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What's New in Lunar Observer
2.0
August 26, 2026
Version 2.0 is a complete rebuild of Lunar Observer, inside and out. A NEW DESIGN — ORBIT The app has been redrawn around a full-width lunar hero, a scrollable week strip, and cards finished in Liquid Glass. Every tab now speaks one visual language. SCRUB THE DAY ALONG THE HORIZON The hour bar is now a horizon scrubber. Drag the needle to move the Moon through the day, and it catches at sunrise, sunset, moonrise, moonset and the day's conjunction with a small stop you can feel. ASTRONOMER MODE One switch turns plain readings into professional ones: arcseconds instead of rounded degrees, seconds on every event time, and a fourth section in Info for the Moon's appearance. CONJUNCTIONS, A DECADE AHEAD Every pass of the Moon with the planets and the bright stars, each listed with the best window to actually see it from where you are. ECLIPSES YOU CAN SEE Solar and lunar eclipses now include the shadow path across the Earth, a preview of maximum phase, and whether totality reaches your location. MERIDIAN TRANSIT The moment the Sun or the Moon reaches its highest point of the day, added to the Info tab.
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FAQ
What is Lunar Observer?
Lunar Observer is a free reference app that provides precise astronomical data about the moon, including its phases, illumination percentage, rise and set times, and upcoming solar and lunar eclipses. It also features a Hijri calendar and offers optional notifications for celestial events.
How accurate are Lunar Observer's calculations?
Lunar Observer uses professional-grade astronomical calculations powered by NASA's JPL DE440 ephemeris, the same high-precision model used by NASA Horizons. This ensures sub-arc-second accuracy for its data, covering a wide range of years.
Does Lunar Observer have ads?
No, Lunar Observer does not contain advertisements. It is a completely free application with no ads or in-app purchases.
What devices is Lunar Observer available on?
Lunar Observer is available for iPhone and iPad devices, offering a detailed astronomical experience on both platforms.
How does Lunar Observer handle privacy?
Lunar Observer prioritizes user privacy by ensuring your location data never leaves your device. It does not employ tracking, analytics, or require an account, offering a secure and private experience.
Can I choose the moon imagery in Lunar Observer?
Yes, Lunar Observer allows you to choose between real NASA imagery from 2022–2026 or a live 3D model built from Lunar Reconnaissance Orbiter terrain data. The 3D model is recommended for years not covered by NASA photos.
What is the age rating for Lunar Observer?
Lunar Observer has an age rating of 4+, making it suitable for a wide audience interested in learning about the moon and celestial events.
How often is Lunar Observer updated?
Lunar Observer was last updated on June 9, 2026, with version 1.3.0. The app's description indicates that NASA imagery is updated each new year, suggesting regular content refreshes.