user: Question: what is the right ascension (j2000) when the constellation is Sextans and the declination (j2000) is °28′01″?
Columns: ['NGC number', 'Object type', 'Constellation', 'Right ascension ( J2000 )', 'Declination ( J2000 )']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [3109.0, 'Irregular galaxy', 'Hydra', '10h03m06.7s', '°09′32″']
SQL:

assistant: SELECT "Right ascension ( J2000 )" FROM "Table" WHERE "Constellation" = 'Sextans' AND "Declination ( J2000 )" = '°28′01″';