Spectroscopy is the study of light per unit of wavelength, and Santa Barbara Instrument Group's (SBIG's) Spectrometer lives up to its reputation, providing high resolution.  It is a  quality instrument for the amateur and professional. The spectrometer SGS (Self Guiding Spectrograph) was manufactured by  (SBIG) and is coupled to our ST-7 CCD imaging camera. Spectrometer and ST-7 are attached to our 8 inch Schmidt Cassegrain telescope in our observatory. The object that is to be analyzed is viewed on the tracking CCD, simultaneously with the slit. The spectra is recorded by the imaging CCD, oriented long-ways so the spectra falls across 763 pixels, with a height of about 16 pixels for stellar sources. Two gratings and two slits are available. The standard grating, 150 rulings per mm, gives a dispersion of 4.3 angstroms per pixel, and allows the user to capture the entire interesting range from the calcium H and K lines to H-Alpha with a single exposure. An interchangeable high resolution grating can also be used that gives 1.07 angstrom per pixel dispersion, with a resolution of about 2.4 angstroms when used with the narrow slit. 

SGS Spectrometer coupled to our ST-7 CCD camera

Inside view of spectrometer