Quote:
Originally Posted by Paul Haese
Nice work Peter, interesting look to this object.
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Cheers Paul, I have always loved the difference in colour from the two emissions because of their varying distances.
Quote:
Originally Posted by Larryp
Great images, Peter! Love the range of colours in the coloured image
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Thanks Larry
Quote:
Originally Posted by LewisM
Geez I love how this little 6 incher performs! Stunning result as always.
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Thanks Lewis, I am always really happy to use this little scope.
I too have thought about using a small fast astrograph but I think that it is a fruitless excercise. The faster the scope the larger the secondary needs to be, in my f5 its 63mm. With larger diameter scopes this is insignifigant because it covers a smaller percentage area of the primarys surface.
Quote:
Originally Posted by rmuhlack
btw, congratulations Peter on the upcoming wedding, and best wishes to you and your fiancee for the day  |
Thankyou Richard, you were spot on with my scope and I appreciate the well wishes.
Quote:
Originally Posted by Meru
Great work peter, alot of detail there! I tried this with my RC8 but collimation issues kept things at bay. Im surprised how much data you have with just 3 subs for S3 & OIII, the NB composite looks awesome How long were your exposures? I tried looking it up on astrobin but cant seem to find these pics on your user page
*Edit*: Also whats your processing workflow?
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Cheers Meru. I love the way this looks with a larger image scale like an RC8. My subs are all 10 minutes but the image is made with the Ha as luminance, I have found that if I push the colour data really hard to get the tones I want it will be terribly noisy. This applies with colour data I have spent 10+ hours on or 30 minutes. I then apply a gaussian blur to the colour with about 2.5 pixels (or more depending on what it looks like). This way the colour data looks very smooth and you can get away with a smaller integration.
That is not to say that I want to take images with such small time. My eventual plan is to sort out some flexture free guiding so that I can do some long exposures with narrowband filters. That way I should be able to get to 10 hours exposure with each filter and stick to a lower amount of subexposures. 10 hours of exposure with 10 minute exposures does not look much different too 3 hours.
