Waxing Crescent Moon

A quiet night-sky mood, or literally the young Moon.

Most of the time 🌒 is scenery. It sits beside a goodnight, a photo of the evening sky, a late walk or a line of poetry, and means little more than "the Moon is out and it's peaceful". It is gentler and less cartoonish than 🌙, which is why people who like a soft, minimalist look reach for it. There is no hidden flirtatious or sexual meaning; someone who sends it alone is almost always setting a mood, not sending a code.

Its second life is as one frame of a sequence. The eight phase emoji 🌑🌒🌓🌔🌕🌖🌗🌘 are often posted in a row to mean the lunar cycle, time passing, or simply because they look good; stargazers and astrology accounts use the single frame to say which phase tonight is. In modern astrology and witchcraft circles the waxing moon is the time for growth and new intentions, so 🌒 next to "manifesting" or "fresh start" is read that way.

For Muslims this exact shape has a precise job: each month of the Islamic calendar begins when the new crescent, the hilal, is first sighted after sunset, which is how the start of Ramadan and the day of Eid are fixed. Around those dates 🌒 or 🌙 beside a greeting points to the crescent everyone is watching for. 🌙 is the more usual emblem; 🌒 is the astronomically accurate one.

Which way is it growing, and why does it look backwards?

Lit on the right means waxing, seen from the Northern Hemisphere.

Waxing means growing: the Moon is not changing size, but the share of its sunlit half that faces Earth grows each night from new moon to full. The waxing crescent is the first stage, between new moon and first quarter, and it is an evening object: look low in the west in the hour after sunset, and it sets a few hours after the Sun. The dark part of the disc is the Moon's own night side, not Earth's shadow; Earth's shadow only falls on the Moon during a lunar eclipse.

The emoji follows the view from Europe, North America and most of Asia, where a waxing crescent is lit on the right, like the curve of a D, and a waning one on the left, like a C (the old mnemonic is D-O-C: D waxing, O full, C waning). South of the equator, in Australia, South Africa, Argentina or most of Brazil, the sky is seen the other way up: a waxing crescent is lit on the left, so readers there naturally take 🌒 for the shrinking Moon. Unicode itself notes this; the emoji's name stays waxing everywhere. Near the equator the crescent lies almost on its back, like a boat or a smile.