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_51872 ( "Planet" text, "Planet Type" text, "Semimajor Axis ( AU )" real, "Orbital Period" text, "Radial velocity (m/s)" real, "Detectable by:" text )

### Question ###
What type of planet has a radial velocity of 45.2 m/s?

### Accurate SQL ###

SELECT "Planet Type" FROM table_51872 WHERE "Radial velocity (m/s)" > '45.2'