Question: Which object type had an NGC number greater than 6357 and a declination (J2000) of °45′34″?
SQL: SELECT "Object type" FROM "2-11051842-4" WHERE "NGC number" > 6357.0 AND "Declination ( J2000 )" = '°45′34″';

Question: For the constellation Scorpius and object of Planetary nebula, what was the declination (J2000)?
SQL: SELECT "Declination ( J2000 )" FROM "2-11051842-4" WHERE "Constellation" = 'Scorpius' AND "Object type" = 'Planetary nebula';