Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_1897 ( "Position" real, "Sail Number" text, "Yacht" text, "State/Country" text, "Yacht Type" text, "LOA (Metres)" text, "Skipper" text, "Elapsed Time d:hh:mm:ss" text )

### Question ###
When aspect computing is the yacht what is the sail number?

### Accurate SQL ###

SELECT "Sail Number" FROM table_1897 WHERE "Yacht" = 'Aspect Computing'