Resolution Recommendations For Spectrometer Observations

Greetings.
I’m doing a build of a spectrometer, well underway and was wondering what a good design resolution would be for AAVSO campaigns ? Being that resolution is a factor of the line density of the defraction grating, perhaps a suggested l p m and blaze would be a huge help. I’m using a ZWO ASI533mm mono camera for spectrum capture.
Thank you.
Charlie Moher, London, Ontario, Canada

Hi Charles,

The answer depends quite heavily on what you’d like to do with the spectrograph. For example, you can roughly type novae eruptions with a R~100-200, spectral typing is normally around R~1,000, and radial velocity work benefits from R~10,000 (or greater).

Is there a specific spectrograph that you are considering building?

Brian