Question: what is the right ascension (j2000) when the apparent magnitude is 13?
SQL: SELECT "Right ascension ( J2000 )" FROM "2-11097691-1" WHERE "Apparent magnitude" = 13.0;

Question: what is the constellation when the right ascension (j2000) is 09h51m54.0s?
SQL: SELECT "Constellation" FROM "2-11097691-1" WHERE "Right ascension ( J2000 )" = '09h51m54.0s';

Question: what is the lowest apparent magnitude when the object type is spiral galaxy, the constellation is leo minor and the ngc number is more than 3021?
SQL: SELECT MIN("Apparent magnitude") FROM "2-11097691-1" WHERE "Object type" = 'spiral galaxy' AND "Constellation" = 'leo minor' AND "NGC number" > 3021.0;