In another topic I speaking about the use of webcams to astrophography. Now I started to experiment recording colour spectra through my webcam SPC900NC.
Acquiring a diffraction grating with 1000 lines/mm and I'm trying to capture the spectra of light from street lighting placing the grating directly in front of webcam.
Finally I got a good picture of a street mercury lamp (the bottom image is the image of the comparison of gas emission lines of Mercury, the upper is my image ):
The next step is mounting the diffraction grating in the frame of a filter 1.25" and screw it into the adapter from the webcam to the telescope.
I think I'll get some interesting images, at least of the brighter stars and planets.
Let's see, post the news here.
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