View Single Post
  #20  
Old 10-03-2015, 07:45 PM
RickS's Avatar
RickS (Rick)
PI cult recruiter

RickS is offline
 
Join Date: Apr 2010
Location: Brisbane
Posts: 10,584
Quote:
Originally Posted by Dealy View Post
Guys??

Not going to happen??

No worries, thanks anyway.

I just thought a comparison between say 1 hr of exposure time compared to 10 hrs with the same data, processed the same way, would be very interesting.
Here's an example. NGC7497 imaged with Tak FSQ-106ED and QSI-683 camera (small crop from centre of field containing NGC7497 and some dark dust.). Subs were 15 mins each. The attached images are a simple integration and stretch of 5, 10, 20 and 40 subs = 75 mins, 150 mins, 300 mins and 600 mins.

According to PI's SubframeSelector script the noise measurements are: 3798, 3348, 2756 and 1912.

This is a fairly challenging target...

Cheers,
Rick.
Attached Thumbnails
Click for full-size image (integration_5_Preview01.jpg)
158.5 KB50 views
Click for full-size image (integration_10_Preview01.jpg)
149.4 KB45 views
Click for full-size image (integration_20_Preview01.jpg)
136.8 KB44 views
Click for full-size image (integration_40_Preview01.jpg)
116.8 KB51 views
Reply With Quote