Editorial Policy

Our Editorial Standards

We only publish real astronomy. Every page on this site is reviewed by Joseph Adam, who has been writing about the moon for more than ten years.

Our goal is simple: any person, even a five year old, should be able to read a page here and understand what the moon is doing. So we use plain words, short sentences, and clear examples. We never use made-up facts, and we never copy text from other websites.

When we make a new page, we check three things: (1) is the moon math correct, (2) is the language simple enough for anyone to follow, and (3) does the page contain any astrology, horoscope, or zodiac claims. If any of these fail, we do not publish.

Content Accuracy

All moon data on this site — the phase emoji, the illumination percent, the moon age, the distance, and the eclipse dates — is calculated with the well-known astronomical algorithm based on Jean Meeus' book Astronomical Algorithms (2nd edition).

We cross-check our numbers against NASA's published moon tables and the NASA Eclipse Catalog by Fred Espenak. The math lines up with the real moon in the sky to within a few minutes, which is more than enough for everyday use.

Our emoji and unicode data comes straight from the official Unicode Emoji standard reference charts, so the moon phase emojis shown on this site match the ones used by every modern phone and computer.

• Phase, illumination, and moon age: calculated from the Jean Meeus synodic month formula.
• Moon distance: calculated from the Meeus mean perigee approximation (chapter 47).
• Lunar eclipses: taken from the NASA Eclipse Catalog by Fred Espenak.
• Moon emojis and unicode: taken from the official Unicode standard.

Sources

We cite our sources openly. Here is the full list of references behind every number on this site:

• Jean Meeus, Astronomical Algorithms (2nd edition, Willmann-Bell).
• NASA Jet Propulsion Laboratory Horizons system (ssd.jpl.nasa.gov/horizons).
• NASA Eclipse Catalog by Fred Espenak (eclipse.gsfc.nasa.gov).
• Unicode Emoji Standard reference charts (unicode.org).

No Astrology

We do not publish horoscopes. We do not publish zodiac predictions. We do not publish any kind of astrology content — not on the homepage, not in our tools, not in our calculators, not anywhere.

This is a deliberate choice. The moon is a real object in the real sky, and we want to share the real science of how it moves and changes shape. Mixing that with astrology would only confuse people and would go against the beliefs of many of our readers, including our Muslim readers.

If you ever see a page on this site that looks like astrology, it is a mistake. Please email us at moonphaseemoji@gmail.com and we will take it down.

Updates & Corrections

We try our best, but we are human. If we publish a wrong number, a broken link, or a confusing sentence, we fix it as soon as we hear about it.

When we correct a significant mistake, we update the page and, where useful, add a small note at the bottom of the page saying what changed and when. Small typos and rewording are fixed quietly.

If you spot something wrong, please email us at moonphaseemoji@gmail.com with the page URL and a short note about what is wrong. We read every message.

Author Expertise

Joseph Adam is the founder, writer, and reviewer behind this site. He has been writing about the moon, the stars, and how the sky works for more than ten years — always in plain, simple language.

He personally checks every new page before it goes live. He is also the person who answers support emails. So when you write to us, you are writing to him directly.