NGC3766 is beautiful open cluster in Centaurus. It lies about 5500 ly away and is part of the huge star forming region called the Carina molecular cloud. The cluster contains a nice variety of stars including 4 A types, 11 Bs and 2 super red giants.

PlaneWave 12.5″ Astrograph with an STL11000 camera, Astrodon filters, and ASA gearless DDM-85 mount. F/8 LRGB (45/8min L, 8/8min each 2×2 RGB).