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_name_66 ( apparent_magnitude INTEGER, ngc_number VARCHAR, object_type VARCHAR, constellation VARCHAR )

### Question ###
what is the lowest apparent magnitude when the object type is spiral galaxy, the constellation is leo minor and the ngc number is more than 3021?

### Accurate SQL ###

SELECT MIN(apparent_magnitude) FROM table_name_66 WHERE object_type = "spiral galaxy" AND constellation = "leo minor" AND ngc_number > 3021