user: Question: what is the declination (j2000) that has a constellation of Hydra and a right ascension (j2000) of 10h46m44.9s?
Columns: ['NGC number', 'Object type', 'Constellation', 'Right ascension ( J2000 )', 'Declination ( J2000 )']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [3310.0, 'Spiral galaxy', 'Ursa Major', '10h38m45.9s', '°30′12″']
SQL:

assistant: SELECT "Declination ( J2000 )" FROM "Table" WHERE "Constellation" = 'Hydra' AND "Right ascension ( J2000 )" = '10h46m44.9s';