Table: ngc_objects_6001_7000_3
Columns: ngc_number
object_type
constellation
right_ascension_j2000
declination_j2000

Question: Name the object type with an NGC number more than 6638 and right ascensions being 18h25m37.8s
SQL: SELECT "object_type" FROM ngc_objects_6001_7000_3 WHERE "ngc_number" > 6638 AND "right_ascension_j2000" = '18h25m37.8s'

Question: Tell me the constellation which has a right ascension of 18h17m41.1s
SQL: SELECT "constellation" FROM ngc_objects_6001_7000_3 WHERE "right_ascension_j2000" = '18h17m41.1s'