- Astronomy.
- a group of stars.
- a constellation.
- a property of some crystallized minerals of showing a starlike luminous figure in transmitted light or, in a cabochon-cut stone, by reflected light.
- three asterisks ( or ) printed to draw attention to a passage it precedes.
- three asterisks arranged in a triangle (⁂ or ), to draw attention to the text that follows
- a starlike effect seen in some minerals and gemstones when viewed by reflected or transmitted light
- a cluster of stars, which may be a subset or a superset of a constellation
