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National Maritime Museum
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Queen's House
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Booking recommended
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Royal Observatory
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Royal Observatory
Talks and tours
Annie Maunder: life, work, legacy
A panel discussion led by curator of the Royal Observatory Dr. Louise Devoy celebrating pioneering solar astronomer and astrophotographer Annie Maunder
National Maritime Museum
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Pirates
Explore the myth, discover the truth: Pirates at the National Maritime Museum is now open
Queen's House
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Salons in the Queen's House
See the Queen’s House and its collections in a new light with this series of free lunchtime talks exploring art, architecture, history and our contemporary culture
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Art at the Queen's House
Our Ocean, Our Planet
Guide to the night sky
Museum blog
The pirate hunter's cup
What does a carved coconut shell have to do with one of the most deadly pirates in history? Dr Robert Blyth follows the story of Bartholomew Roberts, and the 'forgotten pirate hunter' Captain Chaloner Ogle
The art of piracy: imagining the world of Zheng Yi Sao
A series of illustrations by Livia Giorgina Carpineto brings the world of notorious pirate queen Zheng Yi Sao to life
Night Sky Highlights - April 2025
Discover what to see in the night sky this April, from the Lyrid meteor shower to bright inner planets, and more.
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The Prince Philip Maritime Collections Centre
Come behind the scenes at our state-of-the-art conservation studio
Caird Library
Visit the world's largest maritime library and archive collection at the National Maritime Museum
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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
Box of bar magnets
Clamp, Corrector Magnet
Corrector Magnet
data processing t&e: magnetograph component: recording apparatus
Earth current galvanometer
electrical & magnetic t&e: dial, magnetic
electrical & magnetic t&e: dip circle component
electrical & magnetic t&e: galvanometer
electrical & magnetic t&e: magnet
electrical & magnetic t&e: magnet, declination
electrical & magnetic t&e: magnet/mirror, declinometer
electrical & magnetic t&e: magnet/mirror, declinometer(magnet and mirror system)
electrical & magnetic t&e: magnetograph
electrical & magnetic t&e: magnetograph(light-proof box)
electrical & magnetic t&e: magnetograph, declination
electrical & magnetic t&e: magnetograph, horizontal force
electrical & magnetic t&e: magnetograph, photographic(recording apparatus)
electrical & magnetic t&e: magnetograph, vertical force
electrical & magnetic t&e: magnetometer
electrical & magnetic t&e: magnetometer(recording)
electrical & magnetic t&e: magnetometer component: magnet
electrical & magnetic t&e: variometer
electrical & magnetic t&e: variometer component: magnet
Florentine compass
Geomantic compass
Magnet
magnet
Magnet, bar
Magnet, declination
Magnet/Mirror, declinometer
Magnet/mirror, declinometer
Magnet and mirror
Magnet bar
Magnet carrier
Magnet carrier - aircraft compass
Magnet Carrier - aircraft compass
Magnet carrier - aircraft compass - magent
Magnet carrier - aircraft compass - magnet
Magnet carrier - aircraft compass; magnet
Magnet corrector
Magnet corrector - aircraft compass
Magnet holder
Magnet holder - aircraft
Magnet holder - aircraft?
Magnet holder - aircraft compass
Magnet holder - aircraft compass parts
Magnetic, dip circle
Magnetic, galvanometer
Magnetic azimuth dial
Magnetic block
Magnetic compass
Magnetic compass assembly
Magnetic correcting device - aircraft compass
Magnetic corrector box - aircraft compass
Magnetic deviation detector
Magnetic deviation detector disc
Magnetic deviation detector filter
Magnetic deviation detector index arm
Magnetic deviation detector patent
Magnetic deviation detector shadow pin part
Magnetic deviation detector trade card
Magnetic dial
Magnetic dial case
Magnetic dial lid
Magnetic needle
Magnetic needle - aircraft compass
Magnetic transmitting compass
Magnetic transmitting compass - aircraft compass
Magnetic Variometer
Magnetograph
Magnetograph, horizontal force
Magnetograph, vertical force
Magnetograph recording apparatus
Magnetometer
Magnets
Mariner's compass
Recording apparatus
surveying & navigational t&e: clamp, corrector magnet
surveying & navigational t&e: compass, magnetic transmitting
surveying & navigational t&e: compass, mariner's: compass, dry card
surveying & navigational t&e: compass, monk's: compass, Florentine
surveying & navigational t&e: compass, pocket: sundial, pocket
surveying & navigational t&e: correcting device, magnetic(adjustable)
surveying & navigational t&e: corrector, magnet
surveying & navigational t&e: corrector, magnet(aircraft)
surveying & navigational t&e: corrector box, magnetic(adjustable)
surveying & navigational t&e: detector, magnetic deviation
surveying & navigational t&e: magnet carrier, compass
surveying & navigational t&e: magnet carrier, compass corrector
surveying & navigational t&e: magnet holder, compass corrector
surveying & navigational t&e: magnet holder, compass corrector(aircraft compass)
surveying & navigational t&e: magnetometer
surveying & navigational t&e: needle, magnetic(distant reading compass)
surveying & navigational t&e: worm gearing
timekeeping t&e: dial
timekeeping t&e: dial, fixed: magnetic horizontal
timekeeping t&e: dial, portable: dial, analemmatic
timekeeping t&e: dial, portable: dial, magnetic
timekeeping t&e: dial, portable: dial, magnetic azimuth(azimuth)
Variometer
Vertical force magnetograph
Vertical force magnetometer
Worm Gearing for Correcting Magnets
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Materials
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Materials
Materials
alloy
aluminium
aluminium?
aluminium alloy
box
brass
brass?
card
copper
electronics
enamel
felt
gilt-brass
glass
gold foil
inorganic: glass
ivory
Ivory
lead
leather
liquid
magnet
magnets
mercury
metal
metal: brass
metal: gunmetal with brass fittings
metal: steel
oak
paper
plastic
silk
silver
silver?
steel
steel?
string
synthetic: plastic
thread
wax
white metal
wood
wood?
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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
Admiralty Compass Observatory
Air Ministry
Airy, George Biddell
British Aerospace
Buschmann, Johannes
Cambridge & Paul Instrument Co
Cambridge Scientific Instrument Co
Captain Robinson
Chaffer, C.
Ebsworth, Richard
Elliott Bros
Hughes, A
Patin
Plath, C.
Porter, Samuel
Robertson, Charles
Robinson, Thomas Charles
Scoresby, Reverend William
Shaw, R. E.
Simms
Simms, W
Simms, W.
Staight, Thomas
Tench, Matthew Parker
Troughton & Simms
Unknown
White, James
Yuan, Zheng Fu
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Places
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Places
Places
Augsburg
Berlin
China
England
France
Germany
Hamburg
Italy
London
Russia
Slough
Stevenage
Unknown
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Events
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Events
Events
Arctic Exploration: North Pole expedition, Nares, 1875-1876
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People
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People
People
Airy, George Biddell
Chambers, T. K.
Deutsche Seewarte
Lieutenant-Commander Flower
Malin, Stuart
Science Museum Group
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Century
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Century
Century
11th
12th
13th
14th
15th
16th
17th
18th
19th
20th
unknown
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Date Range
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Date Range
Date From
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1600
1625
1640
1780
1790
1800
1801
1820
1824
1825
1830
1840
1856
1860
1864
1870
1880
1891
1895
1905
1910
1913
1914
1915
1920
1924
1925
1930
1931
1934
1935
1939
1940
1944
1945
1950
Date To
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1024
1625
1650
1660
1810
1820
1824
1825
1830
1840
1845
1850
1856
1860
1864
1865
1875
1890
1891
1900
1905
1913
1914
1915
1920
1924
1925
1930
1931
1939
1940
1942
1944
1945
1950
1954
1955
1960
1970
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Magnet
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showing 110 objects results
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Object title/name
Object title/name (desc)
Finding reference
Finding reference (desc)
Magnetic deviation detector patent
Magnetic deviation detector index arm
Magnetic deviation detector trade card
Magnetic deviation detector shadow pin part
Magnetic deviation detector shadow pin part
Magnetic deviation detector filter
Magnetic deviation detector filter
Magnetic azimuth dial
Magnetic needle - aircraft compass
Clamp, Corrector Magnet
Magnetic compass
Magnetic dial
Magnetic dial lid
Magnetic dial
Magnetic dial
Magnetic dial lid
Magnet carrier - aircraft compass
Magnetic transmitting compass - aircraft compass
Magnetic dial
Magnet holder - aircraft?
Magnetic dial
Mariner's compass
Magnetic correcting device - aircraft compass
Magnetic correcting device - aircraft compass
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