– Paramount ME
– Officina Stellare RH 200 (the F3 speed allowed for such short subs)
– FLI ML8300
– Atlas Focuser
– Astrodon Filters
I am lucky enough to have a relatively dark location in the Worcestershire countryside though even this image suffered some gradients from the nearest village to my observatory â€“ some 2 miles away. Nonetheless I feel it is a good example of what can be achieved. Even more so as it comprises of just 4 hours data mainly due to the fact I fell asleep on the sofa after a hard dayâ€™s work and did not get to press go until late into the evening when I awoke!
The image comprises of 50 Luminance frames @ 180 seconds and 15 per channel RGB @ 120 seconds. To be honest I left to run over night with no idea what the results would be from my new set up but was pleased with the results when I reviewed.
Sitting in Cepheus not far from the Iris Nebula a network of Lynds Bright and dark objects (LBN & LDN) can be found. This picture shows part of LBN468 which contains LDN 1147, 1152, 1155, 1157, and 1158.
It also contains a small fan-like structure HH215 (slightly right and above the centre of the picture), also known as Gyulbudaghianâ€™s Nebula, discovered by Armenian astronomer Armen Gyulbudaghian at Byurakan Observatory in 1977.
This small feature is possibly the most interesting as it is a variable nebula (a reflection nebula that changes in brightness because of changes in the progenitor star) much like Hubbles variable nebula.
The nebula is a jet being fired from the variable protostar PV Cephei, and the nebula changes both brightness and shape in relation to the activity of the protostar.