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Nebulosity and the DSI III

Started by fblue, 02/17/2008 08:01PM
Posted 02/17/2008 08:01PM Opening Post
Ok, last night in the back yard I did some testing. Seeing was not great and the Moon was high and bright. Lots of light pollution too especially to the north. But, I wanted to see how the program worked so that the next dark night I would be ready.
I found that anything over 120 seconds just caused more noise than signal due to all the light. I always have problems when the Moon is overhead and more than 1/4 phase.
Here are two photos. 120 seconds x 15 subs. Taken with everything set default in Nebulosity.
I used Nebulosity to apply darks as well as used it with Drizzle to stack and align the subs.
Here is the first one, M44.
This is luminance only, so bear with me on this. :^)
Seems that it did a great job, considering all the seeing difficulties, it is very good I think.


Attached Image:

fblue's attachment for post 40913

[SIZE="Large"][/SIZE][COLOR="Blue"][/COLOR] Floyd Blue grin
Amateur Imager
Posted 02/17/2008 08:03PM #1
Here is the 2nd shot, M81, again 120 seconds x 15 subs luminance only. Same processing as the last one. Photoshop CS2 was used in each to set all the histogram.

Attached Image:

fblue's attachment for post 120419

[SIZE="Large"][/SIZE][COLOR="Blue"][/COLOR] Floyd Blue grin
Amateur Imager
Posted 02/18/2008 02:32AM #2
Floyd, when The Moon is out, there is not much to do as far as imaging goes...
Of course, you could always shoot Ha, which does not suffer from LP or Moon Pollution... wink

Ivan Gastaldo 8)
Coconut Creek, FL

Ivan's Observatory
Lat 26N 16' 48" Long 80W 10' 48"
[COLOR="Red"]Personal Website:[/COLOR] http://www.ivangastaldo.com

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