Image: Lossy-page1-3705px-Herschel's Grand Forty feet Reflecting Telescopes RMG F8607 (cropped)

Description: Herschel's Grand Forty feet Reflecting Telescopes A hand-coloured illustration of William Herschel's massive reflecting telescope with a focal length of forty feet, which was erected at his home in Slough. Completed in 1789, the telescope became a local tourist attraction and was even featured on Ordnance Survey maps. By 1840, however, it was no longer used and was dismantled, although part of it is now on display at the Royal Observatory, Greenwich. This image of the telescope was engraved for the Encyclopedia Londinensis in 1819 as part of its treatment of optics. Herschel's Grand Forty feet Reflecting Telescopes
Title: Lossy-page1-3705px-Herschel's Grand Forty feet Reflecting Telescopes RMG F8607 (cropped)
Credit: http://collections.rmg.co.uk/collections/objects/386474
Author: J. Pass
Permission: The original artefact or artwork has been assessed as public domain by age, and faithful reproductions of the two dimensional work are also public domain. No permission is required for reuse for any purpose. The text of this image record has been derived from the Royal Museums Greenwich catalogue and image metadata. Individual data and facts such as date, author and title are not copyrightable, but reuse of longer descriptive text from the catalogue may not be considered fair use. Reuse of the text must be attributed to the "National Maritime Museum, Greenwich, London" and a Creative Commons CC-BY-NC-SA-3.0 license may apply if not rewritten. Refer to Royal Museums Greenwich copyright.
Usage Terms: Public domain
License: Public domain
Attribution Required?: No