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Develop your portrait skills in this special guided workshop, led by artist Federico Baeza-Autillo
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Our Ocean, Our Planet
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Space and astronomy highlights in 2025
What's worth looking up for in 2025? Discover this year's must-see moments with Royal Observatory astronomers
Reframing Black history: Joseph Ijoyemi and the Atlantic Worlds gallery
From resilience to resistance, two new paintings in the Atlantic Worlds gallery at the National Maritime Museum celebrate the history of pre-colonial Africa
The Shipping Forecast
The Shipping Forecast was first broadcast on the BBC in 1925. Explore the history of the forecast with the National Maritime Museum, and discover objects connected with the power of our ocean
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Item Category
Item Category
Astronomical and navigational instruments
Astronomical and navigational instruments
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3. Astronomy demonstrated: instruments and models
Astrolabes and quadrants
Celestial navigation
Charting instruments
Compasses
Course, speed and distance indicators
Electronic navigation
Exploring the Arctic
Globes
Globes and globe gores
Herschel family
Meteorological instruments
Optical equipment
Popular Astronomy
Sundials
Telescopes
Telescopes at the Royal Observatory Greenwich
Telescopes Online Gallery
The Herschels as experimenters
The Herschels as instrument makers
The many faces of the telescope
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Type
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Type
Type
A. Mirror
Adaptor
Apertures and carrying plates
astronomical t&e: elliptical plane component: axis
astronomical t&e: polisher
astronomical t&e: polishing machine
astronomical t&e: prism
astronomical t&e: telescope (20ft)
astronomical t&e: telescope, reflecting
astronomical t&e: telescope, reflecting(20ft)
astronomical t&e: telescope, reflecting(Newtonian)
astronomical t&e: telescope component: disc, speculum metal
astronomical t&e: telescope component: eyepiece, micrometer
astronomical t&e: telescope component: mirror
astronomical t&e: telescope component: mirror (40 ft)
astronomical t&e: telescope component: mirror(Gregorian)
astronomical t&e: telescope component: mirror, convex(cassegrain reflector)
astronomical t&e: telescope component: mirror, elliptical plane
astronomical t&e: telescope component: mirror, glass(unfinished)
astronomical t&e: telescope component: mirror, objective(Gregorian)
astronomical t&e: telescope component: mirror, plane
astronomical t&e: telescope component: mirror, speculum
astronomical t&e: telescope component: mirror, speculum(5 inch)
astronomical t&e: telescope component: mirror, speculum(7ft Gregorian)
astronomical t&e: telescope component: mirror, speculum(9 inch)
astronomical t&e: telescope component: mirror, speculum metal
astronomical t&e: telescope component: mount, eyepiece
astronomical t&e: telescope component: polishing frame, mirror
astronomical t&e: telescope component: stand
astronomical t&e: telescope component: tube, telescope(reflecting)
A Telescope
Bar
Belt
Cassegrain secondary mirror
Cover for mirror
Extension tube
Eyepiece
Eyepiece micrometer
Eyepiece mount
Eyepiece mounts
File
Filter in a brass mount
glass, plastics, clayworking t&e: lathe
Gregorian mirror
Gregorian primary mirror
Gregorian secondary mirror
Gregorian secondary mirror cover
Grinding & polishing apparatus
Herschelian (?) primary mirror
Herschelian primary mirror
Knob
Lathe and tools
Metal mirror
Mirror
mirror, elliptical plane
Mirror and box
Mirror grinding and polishing apparatus
Newtonian primary mirror
Newtonian secondary mirror
Newtonian secondary mirror case
Newtonian secondary mirror cover
Nuts and bolts
Part of the 20ft reflector telescope stand
Polisher
Polishing frame
Polishing machine for large mirrors
Primary objective mirror
Prism
Reflector eyepiece
Ring hold
Scraps of metal
Screw cap
Screwdriver
Telescope
Telescope stand
Telescope tube
Telescope tube and mounting
Tool
Unfinished mirror
Unfinished Newtonian primary mirror
Unknown
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Materials
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Materials
Materials
brass
glass
iron
leather
mahogany
metal
pine wood
speculum metal
speculum metal???
steel
textile
wood
wood: mahogany
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Display Location
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Display Location
Display Location
Display - ROG
Not on display
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Creator
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Creator
Creator
Herschel, Caroline Lucretia
Herschel, John Frederick William
Herschel, William
Herschel, William, Sir
Johann Alexander Herschel
Unknown
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Places
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Places
Places
Bath
Clay Hall near Windsor, completed in Slough.
England
Observatory House, Slough, England
Slough
Unknown
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Events
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Events
Events
Discovery of Uranus, 1781
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People
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People
People
Herschel, Caroline Lucretia
Herschel, John Frederick William
Herschel, William
Johann Alexander Herschel
Royal Astronomical Society
Royal Greenwich Observatory
Sanderson, A. C.
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Century
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Century
Century
18th
19th
unknown
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Date Range
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Date Range
Date From
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1701
1770
1773
1780
1785
1786
1789
1790
1800
1805
1820
1821
Date To
Select...
1773
1786
1789
1790
1791
1800
1807
1810
1820
1821
1822
1924
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Herschel, William
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showing 114 objects results
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Object title/name
Object title/name (desc)
Finding reference
Finding reference (desc)
Newtonian secondary mirror cover
Newtonian secondary mirror cover
Newtonian secondary mirror cover
40ft (Mirror grinding and polishing apparatus)
Newtonian secondary mirror
Newtonian secondary mirror
Newtonian secondary mirror
Newtonian secondary mirror
Newtonian secondary mirror
Newtonian secondary mirror
Eyepiece mount
Adaptor
Eyepiece mount
Gregorian secondary mirror cover
Apertures and carrying plates
Eyepiece mount
Eyepiece mount
Eyepiece mount
Eyepiece mount
Polishing machine for large mirrors (40ft) (Mirror grinding and polishing apparatus)
Scraps of metal
Eyepiece mounts
Mirror
20ft (reflector) telescope stand (Part of the 20ft reflector telescope stand)
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