35.0 MB (35.0 MB compressed)
3451 x 3543 pixels
29.2 x 30.0 cm ⏐ 11.5 x 11.8 in (300dpi)
SCIENCE, INDUSTRY & BUSINESS LIBRARY / NEW YORK PUBLIC LIBRARY / SCIENCE PHOTO LIBRARY SCIENCE, INDUSTRY & BUSINESS LIBRARY / NEW YORK PUBLIC LIBRARY / SCIENCE PHOTO LIBRARY
Newtonian telescope. Historical illustration of a Newtonian telescope used for photographing the Sun. A Newtonian telescope uses a mirror rather than a lens to focus light. This telescope is on an equatorial mount, which allows it to follow the Sun and stars as they move across the sky. This illustration was published in 1904 in Atlante astronomico, by Giuseppe Naccari.
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