The spectrograph

Optical design

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opitcal design

Spectra in this compilation are obtained with a do-it-yourself Czerny-Turner spectrograph, attached to a Celestron C8 Schmidt-Cassegrain telescope. Collimator mirror and camera mirror are also made by the author.

Further components:

FWHM of Emissionlines of Calibration lamp: 3.8 Angström

Dispersion: ca. 0,81 Angström per pixel with ATIK 414ex mono

Spectrum of darkimage (4 captures added, 3 lines binned), normalized to maximum intensity of a spectrum, to illustrate the thermal noise of the ATIK 414ex mono.