NGC 3399 (also MCG 3-28-12 and PGC 32395) is a magnitude +12.9 lenticular galaxy located 307 million light-years away in the constellation Leo.
The galaxy was discovered by German astronomer Albert Marth using a 121.92 cm (48 inch) speculum reflector at William Lassell's Tigné Point observatory in Sliema, Malta, on the 1st April 1864.
Right Ascension 10h 49m 27.6s, Declination +16° 13' 08"
