Eta Carina’s intrinsic luminosity is 5 million times that of the sun. Its brightness varies incredibly over time. Back in 1843 it was the 2nd brightest star in the night sky. Over time, with occasional flare ups, it has dimmed to about 4th magnitude today.
The “Keyhole” feature behind it was caused by the intense energy flowing out of Eta, which has blasted a huge cavity in the nebula behind it. Dark dust patches and lanes can be seen scattered here and there in the picture.

This is the first image taken with a new CMOS camera.

PlaneWave 12.5″ Astrograph with ZWO ASI6200 camera, Astrodon filters, and ASA DDM-85 gearless mount. F/5 LRGB (67/3min L, 23/3min RGB) All subexposures binned 2×2.