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_177766_1 (constellation VARCHAR, area__sqdeg_ VARCHAR)

### Question ###
What is the name of this constellation with an area of 245.375 sq. deg.?

### Accurate SQL ###

SELECT constellation FROM table_177766_1 WHERE area__sqdeg_ = "245.375"