This is the Large Magellanic Cloud and is a satellite of the Milky Way. It can only be observed from the Southern hemisphere. It’s a pretty large object in the sky (more than 20 times the apparent diameter of the Full Moon), visible in the direction of the constellations Dorado and Mensa. It is at a distance of around 160000 light-years from the Milky Way. The turquoise patch in the galaxy is the Tarantula nebula.
Date and place: January 12 2017; Stonehenge Aotearoa, New Zealand
Camera: Canon EOS 5D Mark III
Lens: Canon EF 70-200mm f/2.8L
Exposure: 13 x 180s
Tracker: Fornax Mounts LighTrack II