LBN468

LBN-468-HH-125-V1-crop-jpg-high-c870023


Patrick Gilliland

Worcestershire

RoR Observatory
– 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 – 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 day’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 Gyulbudaghian’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.

2016-10-03T00:00:00

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