A method for recording meteor spectra using a digital single-lens reflex (DSLR) camera, a normal large aperture lens and custom designed prism is described. The complete setup is guided and directed to meteor shower's radiant. A detailed calculation of the performance of this setup and observations during Geminid's maximum in 2010 are presented: 13 spectra were obtained and more than 35 spectral features were found. This method is quite efficient and at acceptable price for amateur astronomers. Using the ``Live View'' function of DSLR camera helps with accurate focusing. The spectra are sharper and the resolution is higher compared to a classical film camera. Also, fainter spectra are recorded compared to a 35 mm film camera.
WGN, Journal of the International Meteor Organization
- Pub Date:
- April 2011