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Old 01-11-2017, 07:17 AM
xelasnave's Avatar
Gravity does not Suck

xelasnave is offline
Join Date: Mar 2005
Location: Tabulam
Posts: 13,830
Originally Posted by billdan View Post
Hi Alex,

For your hypothetical filter wheel, you will need LRGB broadband for star colour, the traditional Ha, OIII and SII narowband filters. Plus you could add these exotic filters Neon III, Helium I or II and Argon III.

I have attached a table showing emission line signal strengths for some nebula's, green are those signals greater than SII and yellow for signals less than SII.

Thank you Bill that answers my question perfectly.
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