CREATE TABLE table_51871 ("Planet" TEXT, "Planet Type" TEXT, "Semimajor Axis  (  AU  ) " FLOAT, "Orbital Period" TEXT, "Radial velocity  ( m/s ) " FLOAT, "Detectable by:" TEXT)

What planet orbits in 3.23 days?
SELECT "Planet" FROM table_51871 WHERE "Orbital Period" = '3.23 days'
SELECT "Planet" FROM "table_51871" WHERE "Orbital Period" = '3.23 days'