Description: I have done a reprocessing of my Eta Carina Nebula. The image was taken when I was fighting differential flexure due to a loose guide scope and I had some mount belt issues so that both the stars and nebula lack some sharpness and the stars are oval in some corners. However, I also had a major problem with my darks which had a distinct vertical line running down the left of the picture - only realised that recently as I thought it was a gradient of sorts. Anyway, I have since solved this issue and I've decided to reprocess the image with flats and bias frames only but not the defective darks. The Ha layer is great for adding detail and nebulosity but to my eye can also make the image appear flatter than without. Perhaps there is a better way to add the Ha as Lum layer to prevent this ...
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Description: Starless Ha Luminous layer used for detail layer
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Description: RGB acquired for stars mainly but the stars were poor due to the mechanical and guiding issues described above. Star colour potential is encouraging though using ArcSine Stretch. Now that I am beginning to understand what I am doing (although I realise this is likely again to change again very soon) I would like to repeat this image when the time of year comes around again as an LRGB image with more time put into it and better stars of which I will include more of perhaps.
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Description:
A further test image in an attempt at adding HA to the RGB master, trying to avoid the image looking too flat.
Still , the star quality remains rather poor so I will re-acquire the image as planned.
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| Southern Hemisphere Astro |
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