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A crescent that means the Moon in astronomy and a colour scheme on a screen — and something else again on some platforms.
In astronomy the crescent stands for the Moon. In an interface it usually switches to a light-on-dark colour scheme. But not always: several platforms use the same crescent for do-not-disturb, so a crescent in a status bar cannot be read at all without knowing which system you are looking at.
The astronomical crescent stands for the Moon itself; the interface one is a display setting that borrows the shape.
Drawn from the visual attributes recorded for each symbol. Only traits the two records disagree about are listed.
| Trait | Moon symbol | Dark mode moon symbol |
|---|---|---|
| Built from | circles and abstract | circles |
| Symmetry | horizontal | none |
| Moon symbol | Dark mode moon symbol | |
|---|---|---|
| What it names | The Moon | A display setting |
| Where you see it | Charts and astronomical tables | Interface toggles and status bars |
| Meaning is settled | Yes | No — dark mode on some platforms, do-not-disturb on others |
| Borrowed from | — | The astronomical crescent |
| Relationship (from Symbolwise's records) | Commonly confused with Dark mode moon symbol — The astronomical crescent stands for the Moon itself; the interface one is a display setting that borrows the shape. | Commonly confused with Moon symbol — The astronomical crescent stands for the Moon itself; this one is a display setting that borrows the shape. |
Wikipedia · retrieved 2026-07-31
Tertiary reference. Used for the character's identity, its documented astronomical and alchemical use, and the fact that astrology assigns it a meaning. Never used to support the astrological claim itself, which is recorded as a tradition rather than a finding.
Wikipedia · retrieved 2026-07-31
Tertiary reference. Used for the character's identity, its documented astronomical and alchemical use, and the fact that astrology assigns it a meaning. Never used to support the astrological claim itself, which is recorded as a tradition rather than a finding.
Unicode Code Chart: Miscellaneous Symbols (U+2600–U+26FF)
Wikipedia · retrieved 2026-07-31
Tertiary reference. Used for the character's identity, its documented astronomical and alchemical use, and the fact that astrology assigns it a meaning. Never used to support the astrological claim itself, which is recorded as a tradition rather than a finding.
Wikipedia · retrieved 2026-07-31
Tertiary reference. Used for the character's identity, its documented astronomical and alchemical use, and the fact that astrology assigns it a meaning. Never used to support the astrological claim itself, which is recorded as a tradition rather than a finding.
Look for the star. A crescent on its own is the astronomical symbol for the Moon, used in almanacs and calendars, and carries no religious meaning at all. A crescent paired with a star is a distinct symbol widely associated with Islam and appearing on several national flags. A bare crescent on a calendar is not a religious statement.
There is no single answer, and that is the finding. Some platforms draw do-not-disturb as a crescent moon and dark mode as something else; others do the reverse. A circle crossed by a horizontal bar is more reliably do-not-disturb. A crescent in a status bar genuinely cannot be read without knowing the platform.
On a chart or in an ephemeris, a circle with radiating strokes is the Sun itself. On a shipping carton the same drawing is an instruction: keep this package out of direct sunlight. One names a star, the other tells a handler where to put a box, and only the surrounding context separates them.
Look at how the last leg ends. Virgo curls back into a closed loop across the letter; Scorpio runs out into a straight arrow pointing up and to the right. It is the most transposed pair among the twelve signs.