Product images of Newtonian 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.
Newtonian secondary mirror
An elliptical plane mirror made as a secondary mirror for a Newtonian reflector telescope. The diameter of the minor axis of this mirror is 13.97 mm. William Herschel, with help from his brother Alexander and his sister Caroline made a number of these mirrors to go in the telescopes they made to use and to sell.
Sir William Herschel
- Image reference: F3368
- National Maritime Museum, Greenwich, London, Herschel Collection