50.5 MB (1.7 MB compressed)
3740 x 4724 pixels
31.8 x 39.9 cm ⏐ 12.5 x 15.7 in (300dpi)
ROYAL ASTRONOMICAL SOCIETY / SCIENCE PHOTO LIBRARY ROYAL ASTRONOMICAL SOCIETY / SCIENCE PHOTO LIBRARY
Schmidt telescope and spectrograph. The apparatus seen here is used to analyse the spectrum of the light from the sun and stars, a process known as spectroscopy. This can be used to determine the chemical composition of the stars, and identify different types of stars. This spectrograph is part of a Schmidt telescope located at the Royal Observatory, Edinburgh, Scotland. Schmidt telescopes are a type of astronomical camera invented by Bernhard Schmidt in 1930.
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