aestheticsymbols
Use in a combo

Astronomical star copy & paste

꙳ is astronomical star, a character from a specialist Unicode block from the Basic Multilingual Plane block. On Aesthetic Symbols it lives in the stars & celestial collection, tagged star. As plain text it takes on the font and colour of wherever you paste it — a bio, a username, a caption or a stream title.

Unicode
U+A673
HTML entity
꙳
CSS content
\A673
JavaScript
\u{A673}
UTF-8 bytes
EA 99 B3
Made of

U+A673 ꙳ · Basic Multilingual Plane

Will it show up? · Specialist blocks

Historic scripts, mathematical alphabets and other blocks many default fonts do not cover. These are the ones that can arrive as an empty box.

Worked out from how each character is encoded, not from a test on a real device.