The “Jewel Box” is the youngest known open cluster at 14 million years old. It lies in the “Coalsack Nebula” region of the southern sky. While all the cluster’s stars were born at the same time the prominent topaz one is a red giant which has
already evolved off the main sequence before the rest of its siblings.

Takahashi CCA-250 Astrograph with an ST11000 camera, Astrodon filters, and ASA gearless DDM-60 mount. F/5 unguided LRGB (10/30 sec L, 2/30sec each 2×2 RGB).