Showing posts with label stellar spectra. Show all posts
Showing posts with label stellar spectra. Show all posts
Tuesday, December 24, 2013
Orion star trails through spectroscope
Orion star trails through diffraction filter SA100. Spectrum of hot Rigel is different form colder Betelgeuse. Spectrum of M42 Orion Nebula is distinct from contiguous patterns of star spectra. See more about astronomical spectroscopy and stellar classification at http://en.wikipedia.org/wiki/Astronomical_spectroscopy and http://en.wikipedia.org/wiki/Stellar_classification
A - single shot; B - composition of 46 images; Lumix LX3 - SA100 diffraction filter - 60mm lens - ISO400 - f/2.8 - 25 seconds.
Diffraction grating filters: SA-100 vs RO-200
Rainbow Optics RO-200 provides more details in star spectra, more absorption lines are visible/detectable. Star Analyzer SA-100 is better for faint stars since generated spectrum is narrow.
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