Glass positive:- Comet 1911 IV (Brooks) H. Knox-Sh

Astronomy

1911

Glass Positive:- Halley's Comet, V.M. Slipher, Low

Astronomy

1910

Glass positive:- Spiral Nebula, N.G.C.253, (H.V.I

Astronomy

1907

Main part of Cassegrain reflecting telescope

Astronomy

Glass positive:- Spiral Nebula in Virgo, N.G.C. 45

Astronomy

1929

Glass positive:- Spectroheliogram, K, bright filam

Astronomy

1926

Glass positive:- Comet 1911 IV (Brooks), H. Knox-S

Astronomy

1911

Hindu quadrant, 1800-1899

Astronomy

1800-1899

Ptolomaic armillary sphere

Astronomy

1760-1800

Enlarged photographs of the planet Mars

Astronomy

1909

Nebula in Cygnus

Astronomy

1910-07-04

Drawings of Mars from Lick Observatory

Astronomy

1892

Film positive (5" x 5 1/2") Nebula N.G.C. 3115 exp

Astronomy

1923

Rectangular replica reflection grating (8 x 6 inch

Astronomy

1957

Silvered and platinized glass (Foucault)

Astronomy

1857-1868

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

Astronomy

1857-1868

Speculum Mirror, 1861

Astronomy

1861

Film positive (9 7/8" x 7 3/4") nebula N.G.C. 5866

Astronomy

1923

Speculum Mirror, 1850-1870

Astronomy

1850-1870

Solar Corona 1886 August 29, Grenada, W.J. glass t

Astronomy

1886

Johnston's celestial globe

Astronomy

1890-1920

Orrery planetary model by John Hansford, 1785-1810

Astronomy

1785-1810

Brass cover, for 5-foot refracting astronomical telescope

Astronomy

Mechanism for Foucault's Gyroscope Demonstration

Astronomy

Eyepiece, 6-inch focal length, from Huygen's aerial telescope

Astronomy

1686-1691

Celestial globe from set of two armillary spheres

Astronomy

1807-1846

Component, portable transit instrument

Astronomy

Glass level, portable transit instrument

Astronomy

Terrestrial globe

Astronomy

1987

One of eleven photographs, taken by Andrew Ainsli

Astronomy

1883

The Great Nebula in Orion

Astronomy

1883

One of ten glass positives photographs of lunar Ec

Astronomy

1910

One of ten glass positives photographs of lunar Ec

Astronomy

1910

Merz star spectroscope

Astronomy

1890-1900

Brass Gregorian reflecting telescope of 2 1/2-inch

Astronomy

1850-1855

Armillary sphere H.O.^.4, engraved "slaters improv

Astronomy

1880-1891

Primary speculum mirror of 13 1/4-inch diameter, d

Astronomy

1840-1850

Artificial glass horizon (lacking level) in fitted fishskin case lined with purple velvet

Astronomy

1815-1825

Selection of eyepieces and other accessories in fitted mahogany case for (Smyth) refracting telescope

Astronomy

1830

Crystal micrometer, one of three by George Dollond

Astronomy

1820-1830

New and improved pocket terrestrial globe with cel

Astronomy

1838-1840

Terrestial globe of 5 1/2-inch dimeter on wooden p

Astronomy

1847

Transparency, 15"x12", Orion Constellation with my

Astronomy

1931

English horary quadrant, 1750-1799

Astronomy

1750-1799

Refracting telescope of 1 1/2 inch aperture and 13

Astronomy

1760-1780

Machine for dividing and ruling the brass meridian rings of

Astronomy

1755-1775

Terrestial globe, engraved "a new and correct glob

Astronomy

1702-1740

Pocket terrestrial globe

Astronomy

1791-1816

Refracting telescope of 5.9-inch aperture, mounted on English type equatorial mounting with off-set lead counterweight

Astronomy

1829

Celestial globe chalice

Astronomy