Collinder 72 Lost Jewel of Orion


Mark Griffith

Swindon, Wiltshire. UK

GSO 8″ Richey-Chretien Optical tube, Skywatcher NEQ6 pro mount,Atik 383L+ camera, motorised filter wheel and Astronomik filters.

Overlooked open cluster near the orion nebula. Very bright magnitude 3.0 object.

Collected hydrogen alpha data to capture the edge of the nearby great orion nebula.

Best to frame open clusters with a second object if possible. Makes for a more interesting image.

HaRGB image with 2 hours 17 minutes of data. 11 x 7.5min Ha, 12 x 2.5min Red, 10 x 2.5min green & 10 x 2.5min blue.