Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_15463188_17 (position VARCHAR, season VARCHAR)
### Question:
How many players with a position are listed for the 2009 season? 
### Answer:
SELECT COUNT(position) FROM table_15463188_17 WHERE season = "2009"