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_16799784_13 (diameter__km_ VARCHAR, longitude VARCHAR)
### Question:
What is the diameter of the feature with longitude 8.0e?
### Answer:
SELECT diameter__km_ FROM table_16799784_13 WHERE longitude = "8.0E"