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_name_10 (constellation VARCHAR, right_ascension___j2000__ VARCHAR)
### Question:
what is the constellation when the Right ascension ( J2000 ) is 10h18m58.4s?
### Answer:
SELECT constellation FROM table_name_10 WHERE right_ascension___j2000__ = "10h18m58.4s"