Author Topic: Narrowband/LRGB combining (again...)  (Read 2116 times)

Offline Duncan

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Narrowband/LRGB combining (again...)
« on: 2017 June 15 11:01:23 »
I know this topic comes up a lot, but I 'm trying to come up with a good strategy to deal with the conditions that I have to work with, and I'd really appreciate any insights that people have.

Here's my situation: I have extremely poor skies at home, with terrible light pollution from street lights. I typically get a few nights a year under dark skies in central Oregon, when I can capture LRGB data, but for most of the year I'm limited to NB only. My primary camera is a mono CCD with both LRGB and NB filter sets, but I do also have an aging DSLR available.

What I'd like to do is find a good strategy for making use of potentially a large number of hours of NB data that I can combine with a rather smaller amount of LRGB. What kind of combining strategy might make the most sense here?

Any insights much appreciated...

Duncan

Offline RickS

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Re: Narrowband/LRGB combining (again...)
« Reply #1 on: 2017 June 16 02:00:22 »
I have similar conditions at home.  My approach is to do almost exclusively narrowband from home (maybe some RGB for star colour in NB images or very bright objects - big globs are OK) and LRGB when I get under dark skies.  I don't often combine the two and I don't find it easy to do well, apart from simple stuff like adding Ha to a galaxy.

Cheers,
Rick.

Offline Duncan

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Re: Narrowband/LRGB combining (again...)
« Reply #2 on: 2017 June 16 22:40:11 »
Rick,
thanks for the reply. That's pretty much my model now; would be good to see if I can combine somehow, though.

For this year's one dark sky trip, I may run two setups just to maximize the use of time; I have my one main rig and just about enough parts left over from the last 10+ years of upgrades to build a second one...

Duncan