A very short mexican

[codemonkey]

This is the data I captured recently while playing around with short exposures on M104. 2hrs, 36min total data, only 38min of true lum. Obviously this target requires more data to do it any justice, especially since I drizzled it with a scale of 2, but I'm already off onto other things so this'll have to do.

Probably should have used a mask when applying decon.....

Full res on Astrobin (http://www.astrobin.com/247606/C/).

[Atmos]

Pretty good for limited data. How do ylu feel the 108s exposures went? I assume it would have helped somewhat keeping the FWHM down lower, easier to process?

[astronobob]

Nice going Lee - good details for the F/Length :thumbsup:
Inspiring also, as I'm hoping to do this next month, LP skies in the burbs, so, plenty of short subs I assume ...

[RickS]

Looks good, Lee.

[rustigsmed]

looking good already Lee, looking forward to seeing the final version with more L.

cheers

russ

[codemonkey]

Thanks everyone :-)



The 108s RGB subs were ok, but sub length, as with the 36s L subs, were selected due to a silly stuff-up in my math.

I'm not convinced subs of this sort of duration is sufficiently short enough to have much of a beneficial impact on imaging, and it's hard to determine any such impact.

For example, I've moved on to the Antennae at the moment and have been getting more "better" subs with 144s (yes, I went to 144 afterall lol) luminance. Both the subs from the sombrero and the antennae are in the same ballpark, but if you had to pick any set as being better, it would be the antennae since more of them were on the lower end of the range. I'd put it down to better focus and/or seeing that night though.

I still think shorter subs are probably more difficult to process since your detail is closer to the darker, noisier background, but I'm also not sure how you could quantify that.



Cheers mate, good luck with your attempt on this one, looking forward to seeing it! Short subs can definitely work and with more LP you'll be better off with shorter subs, just have to make sure you get enough overall integration time.

[Placidus]

The very short exposures helped. I always burn out the core. You've got detail all the way in. Well done.

[Ryderscope]

A nice result Lee. The galaxy is displaying lots of detail without overexposing.

[codemonkey]

Thanks mate; definitely easy to blow the core on this one. Maybe one day I'll give it a serious effort.



Cheers :-)

[Rex]

Geeze that turned out ok Lee, for the limited amount of data that's showing nice detail. Well done mate!

[codemonkey]

Thanks mate :-)

[janoskiss]

:thumbsup: Love it.