SELECT "Right ascension ( J2000 )" FROM table_53962 WHERE "NGC number" > '2068' AND "Constellation" = 'dorado' AND "Declination ( J2000 )" = '°12′43″'
What is the right ascension (J2000) with a Declination (J2000) of 12 43 , is a constellation of dorado, and has an NGC number larger than 2068?
CREATE TABLE table_53962 (
    "NGC number" real,
    "Object type" text,
    "Constellation" text,
    "Right ascension ( J2000 )" text,
    "Declination ( J2000 )" text
)