Spectrographic dating


27-Apr-2020 16:53

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The complete set forms a small autonomous observatory, comprised of a sealed box with a sliding roof, weather station and computers for data storing and reduction.

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The main elements of the spectrographs (CCD cameras, wide-field objectives and diffraction gratings, support and protection) are described below. On the one hand, a Sigma 4.5 mm f/2.8 EX DC HSM objective is attached to the Atik 314L CCD, which provides a 120º field of view and is adapted by a male/female aluminium adapter to achieve a good focus.

Thus, the analysis of the spectrum of a given meteor can provide distinct information about the plasm, the ablation process and the chemical composition of the meteoroid (Borovička 1993, 1994a; Trigo-Rodríguez et al.