Product images of Gregorian secondary mirror
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Manufactured in the UK
All products are printed in the UK, using the latest digital presses and a giclée printmaking process.
We only use premium branded inks, and colours are independently verified to last between 100 and 200 years.
Gregorian secondary mirror
A circular concave mirror made as a secondary mirror for a Gregorian telescope. This secondary mirror has a brass mount. It is in a small wooden box. William Herschel made and used Gregorian telescopes before moving on to Newtonian and later Herschelian (to his own design) telescopes.
Sir William Herschel
- Image reference: F3353
- National Maritime Museum, Greenwich, London, Herschel Collection