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Photograph of the instruments used by the British expedition when observing the 1919 total solar eclipse in Brazil.

1919

Silvered and platinized glass (Foucault)

1857-1868

Model of Narivalaya at Jaipur Observatory, 1884-1886

1884-1886

Telescope Eyepiece from Great Rosse Telescope, 1845-1850

1845-1850

model of equatorially mounted circles (Chakra Yantra)

1884-1886

models of Celestial hemispheres (Kapali)

1884-1886

Heliostat by Jules Duboscq, 1850-1880

1850-1880

Drawing of Lord Rosse's machine

1915

Working Model of Radio Dish from One Mile Telescope,Cambridge

1964

Eleven astronomical eyepieces and one terrestrial eyepiece

1860-1890

Circular glass mirror (4 1/2-inch)

1934

Sample panel and adjustor for the James Clerk Maxwell Sub-millimetre telescope, 1986

1986

Sample panel and adjustor for the James Clerk Maxwell Sub-millimetre telescope, 1986

1986

Silvered glass telescope mirror of diameter 9 1/2 in

1880-1900

Circular quartz planar mirror (5-inch)

1960-1970

Sample radio receiver for the James Clerk Maxwell sub-millimetre radio telescope, 1986

1986

Grazing incidence spectrometer GIS

1993-1995

Cardboard draw tube telescope

1751-1800

White enamel glass mirror and box, by William Herschel

1780-1800

Solar eyepiece (Herschel wedge) with two dark glass filters by John Browning

1860-1880

Heliostat, contrived by the late G. Johnstone Stoney

1895

Speculum Metal Mirror, 1850-70

1850-1870

Circular glass mirror (10 1/2-inch)

1950

Photomultiplier tube

1967

Catadioptric reflecting telescope

1960-1975

Heliostat with spring driven clock drive for use with table top spectrometers by Adam Hilger Ltd.

1919

Small heliostat on mahogany base/stand with clockwork drive

1875-1885

Model of pointer to the North Pole (Druv Nal)

1884-1886

Model of Ayn Yantra at Jaipur Observatory, 1884-1886

1884-1886

Mahogany chest of telescope eyepieces

1850-1900

Heliostat by Spencer & Son

1860-1890

Circular Glass Mirror, Silver and Platinised, by Leon Foucault, 1857-1868

1857-1868

Italian draw-tube refracting telescope, 1714-1722

1714-1722

Speculum Mirror (dia. 5 3/4-inch) for Gregorian telescope in wooden box

1750-1850

Sample panel and adjustor for the James Clerk Maxwell Sub-millimetre telescope, 1986

1986

Glass disc for telescope mirror

1840-1870

Optical parts of Lassell's telescope

1840-1850

Speculum Metal Mirror, 1840-60

1840-1860

Primary speculum mirror of 13 1/4-inch diameter

1840-1850

Speculum Mirror, 1861

1861

Circular glass mirror (80 mm)

1960-1970

Glass wedge mirror aluminised on the hypotenuse surface

1960-1970

Circular glass mirror (5 1/2-inch)

1930-1939

Primary metal speculum mirror with central hole

1840-1850
Photograph of the 8 inch equatorial used in Japan for the French Transit of Venus Expedition 1874

Photograph of the 8 inch equatorial used in Japan for the French Transit of Venus Expedition 1874

1874
Specimens showing results of a process, for polishing marbles etc, invented by A. Gath of Rome about the year 1825, and applied to reflectors for astronomical purposes: a) Reflector of Nero Antico b) Piece of sililian jasper agate c) Piece of green granite Erbetta d) Similar piece polished according to the old process by Frattoddi e) Disc of eleven agates as used for polishing a small reflector

Specimens showing results of a process

1825
Dialytic telescope of 60 mm aperture and 750 mm focal length by S.G. Plössl, Wien on an altazimuth mounting with folding tripod and fitted box. Accessories include 3 eyepieces and solar filter.

Dialytic telescope of 60 mm aperture and 750 mm focal length by S.G. Plössl

1830-1840
Two photographs (silver prints) showing views of the Great Rosse from both the south- west and south-east. Both were taken about 1880 by Lieutent-Colonel Harry J. Watson, seen in one photograph seated on the ladder, whilst he was posted to nearby Newbridge.

Photographs of the Great Rosse

1880
Models of (a) Celestial hemispheres (Kapali) (b) equatorially mounted circles (Chakra Yantra), scale 1:24, in the Jaipur Observatory

Models of (a) Celestial hemispheres (Kapali) (b) equatorially mounted circles (Chakra Yantra)

1884-1886
model of Azimuth instrument (Diagamsa Yantra), scale 1: 24, in the Jaipur Observatory

model of Azimuth instrument (Diagamsa Yantra)

1884-1886