Since shooting M1 in luminance on the 22nd and 23rd October I haven't been able to shoot any RGB of any significance due to the weather and filter wheel problems so now out of desperation
I'm resorting to reprocessing what I earlier thought were red channel subexposures shot on the 23rd and 28th October were actually luminance subs (due to the filter wheel jamming) so I decided to combine all my luminance subs (39x15min 9.75 hours).
I might add this is quite a big crop and is testimony to the high quality of the TMB optics and how well it works with the QHY9M and it's fantastic KAF 8300 sensor.
Yes I should be using the AT10RC on this target and Like Yan said "it's like towing a mobile home with a Acura RSX”so anyhow I'm giving up on trying to complete this and the Helix in RGB for this year.
Date of Shoot: October 22nd, 23rd and 28th 2011
Location: DownUnder Observatory, Fremont MI
Camera: QHY9M monochrome CCD by
www.astrofactors.com39 x 15 min sub exposures Luminance
Scope: TMB 130SS F7 Refractor with WO/TMB 68mm Field Flattener.
Autoguided: using QHY5 autoguider on celestron Short Tube 80
Paramount GT-1100S German Equatorial Mount (with MKS 4000)
Image Acquired using Maxim DL, stacked with Deep Sky stacker, registered with Registar and processed with Photoshop CS4
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The Crab Nebula (catalogue designations M1, NGC 1952, Taurus A) is a supernova remnant and pulsar wind nebula in the constellation of Taurus. At X-ray and gamma-ray energies, the Crab is one of the strongest persistent sources in the sky.
At the center of the nebula lies the Crab Pulsar, a rotating neutron star, which emits pulses of radiation from gamma rays. The nebula was the first astronomical object identified with a historical supernova explosion.
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