I've recently started imaging star spectra. This requires a diffraction grating to be placed in front of the imaging camera and processing software to calibrate the data.
Basic imaging is best done using a mono camera.
The equipment I use:
Telescope: Sky Watcher ED80 DS PRO
Camera: Altair Astro GP-CAM3 290M
Diffraction grating: Paton Hawksley Star Analyser SA100
https://www.patonhawksley.com/product-page/star-analyser
Processing software: RSpec from Field Tested Systems
https://www.fieldtestedsystems.com my thanks to Tom Field for all his assistance getting me this far.
So here is my first analysis of Vega.
This is what the camera sees, the star Vega to the left, the spectrum to the right.
And after processing in RSpec.
The yellow line is professional calibrated reference data for the Vega class A0V star.
The red line is my data after being calibrated and corrected for the camera sensor response.
The dips in the curves indicate where elements in the atmosphere of the star are absorbing light. There is a large dip in my data around 7650 Angstroms that is not matched in the reference data, I believe that's probably due to the Oxygen in the Earth's atmosphere.
