CREATE TABLE table_21909 ("Rank" FLOAT, "Family" TEXT, "Abbre\\u00adviation" TEXT, "Constellation" TEXT, "Area  ( sq.deg. ) " TEXT, "Area  ( msr ) " TEXT, "Per\\u00adcent\\u00adage" TEXT, "Right ascension  ( hm ) " TEXT, "Decli\\u00adnation  ( dm ) " TEXT, "Quad" TEXT)

What is the name of this constellation with an area of 245.375 sq. deg.?
SELECT "Constellation" FROM table_21909 WHERE "Area (sq.deg.)" = '245.375'
SELECT "Constellation" FROM "table_21909" WHERE "Area (sq.deg.)" = '245.375'