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_31 ( ngc_number INTEGER, object_type VARCHAR, right_ascension___j2000__ VARCHAR )

### Question ###
I want the sum of NGC number for spiral galaxy and right acension of 08h14m40.4s

### Accurate SQL ###

SELECT SUM(ngc_number) FROM table_name_31 WHERE object_type = "spiral galaxy" AND right_ascension___j2000__ = "08h14m40.4s"