text: 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_70 (ngc_number INTEGER, constellation VARCHAR, declination___j2000__ VARCHAR)
  ### Question:
  what is the ngc number when the constellation is leo and the declination (j2000) is °42′13″?
  ### Answer:
  SELECT AVG(ngc_number) FROM table_name_70 WHERE constellation = "leo" AND declination___j2000__ = "°42′13″"