M42, H-alpha. 2 hrs in 15 min subs + 20 seconds on the core.
This is our first image since having our Apogee Aspen CG16M camera repaired by Andor (who own Apogee). They took almost THREE MONTHS to refurbish the chamber seal. For this reason we can no longer recommend Apogee. To us, the repair seemed punitively and uncaringly slow.

M42Hydrogen alphaHalpha