The normal way to indicate omitted text is using three dots (“. . .”). But sometimes, especially in some documents filed with the Supreme Court, I see “* * *” used instead. Any sense of why this is so, and which tends to be preferred, and by whom? Is there some difference in meaning that I’m missing? The Supreme Court’s own opinions generally (or perhaps even always, or almost always) use the “. . .” ellipsis marker rather than the “* * *” marker.
Note: There are various guidelines about how to indicate omitted paragraphs, omitted text at the start or end of sentences, and so on; I’m not discussing that here. Likewise, I’m not discussing the centered row of three asterisks used as a delimiter between parts of a document, especially before the conclusion of the document.
via volokh.com
I've always used "..." but I'd be interested to know if anyone uses "***".