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Old 27-08-2016, 10:52 PM
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Slawomir (Suavi)
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Slawomir is offline
 
Join Date: Sep 2014
Location: North Queensland
Posts: 3,240
Short vs long nb subs

Hi all,

While I have been working on overcoming limitations of my mount, I decided to test whether short (within reason) narrowband subs will yield a similar result to longer ones, given the same total integration time.

The attached shows a section of a stack of 22 five-minute subs (left) and 9 fifteen-minute subs. Total integration time is a tad less for the shorter subs, but anyway the difference between the two is not as astonishing as I was expecting.

Data captured with 3nm H-alpha and ICX 814 in Paddy in Brisbane.

Hopefully I will be able to produce at least a semi-decent image in the coming weeks - it has been ages since my last one...

Suavi
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