Southern Pinwheel Galaxy Messier 83 - NGC 5236

[PhotonCollector]

Hi everyone,

here's a re-processed image I did of Messier 83 at the beginning of March.

It's 7 x 4 minute exposures @ ISO-800 with the modified Canon 300D on the 12-inch f/5 GSO telescope and Baader Coma Corrector. Image is handguided with 4.5" guidescope. Images are dark-subtracted, flat fielded, offset adjusted with IRIS.

Higher Res. Image
http://www.skylab.com.au/pmsa/ngc5236b.html

regards
Paul Mayo

[Starkler]

I like it !
The details and colours are amazing :thumbsup:

[Itchy]

That is very nice Paul

[tornado33]

gee what a nice image, the colour representation of the blue spiral arms full of hot blue stars and the core full of older cooler stars is very accurate.
Scott

[h0ughy]

well, Umm , OK its very Nice, even has the WOW factor. Got anything a little better, ...........ok only Kidding, I would be singing in the rain with that image, true craftsmanship in that one.

[PhotonCollector]

Thanks all for your comments.

Since being able to subtract dark frames, my imaging results have improved considerably (I use IRIS) and the other big help is from doing flat-field images.

I use a 1-metre-square board fixed to the inner wall of the observatory which I point the telescope at, I then turn on a hand held portable fluro light which illuminates the board. Taking an image produces a lovely flat field image that shows the dust specs and the response to light over the camera's sensor as seen through the telescope. So I don't end up with images that are brighter toward the centre of field and dougnuts are also removed from the image.

Paul