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SHO and reflection nebula

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#1 Ballyhoo

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Posted 18 October 2020 - 01:35 AM

I know this is kind of a basic question, but what consideration is there when imaging reflection nebula, like ngc 1333 and wanting to add some SHO data to LRGB?

I was under the impression and maybe I'm wrong that there less sho in reflection nebula. For example when I used my osc and a triband I steered clear of reflection data. 

Thanks 

 

 



#2 imtl

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Posted 18 October 2020 - 02:08 AM

Reflection nebulae are broadband. A lot of them come with an emission nebula part as well so SHO will give better contrast and details on that part. But the reflection part is broadband.


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#3 Madratter

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Posted 18 October 2020 - 09:13 AM

S, H, and O are emission lines. Reflection nebula may have some small amount of light in those emission lines just because they are broadband, but the filters will do nothing to help bring out structure.

 

Now if there happens to be an emission component to the nebula, you can bring that out at the expense of the reflection part of the nebula.



#4 Ballyhoo

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Posted 18 October 2020 - 12:48 PM

 Reflection nebula may have some small amount of light in those emission lines just because they are broadband, but the filters will do nothing to help bring out structure.

 

Now if there happens to be an emission component to the nebula, you can bring that out at the expense of the reflection part of the nebula.

Sort of like, a broken clock is correct twice per day?



#5 Madratter

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Posted 18 October 2020 - 01:27 PM

Pretty much.




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