47 Tucanae | NGC 104
The great globular cluster in Tucana (near the Small Magellanic Cloud). Click on image for a fullscreen version.
Below, an animation of two images of 47 Tucanae (made in October 2013 and September 2014) showing the flickering of variable stars. There are at least five visible; three below centre, one just above centre, and one (with the most dramatic change in brightness) at left. The latter is catalogued as IRAS00230-7220, a variable of the Mira Ceti type.
11-inch Schmidt-Cassegrain telescope; astro-modified DSLR camera.
