This refractor telescope was used at Sydney Observatory in the late 1800s. early 1900s. There are two main types of telescopes. One uses a curved reflecting mirror to capture an image of the celestial bodies the other uses a refracting lens to magnify the image. Refracting telescopes were the first types of telescopes to be invented, appearing in around 1608.

This telescope remains of national significance due to its pioneering role in Australian science and its association with Australia's earliest astronomers. It is also of international significance due to its association with nineteenth century scientific instruments and their makers.


Written by Erika Dicker
Assistant Curator, February, 2008.

The telescope was made by J H Steward Ltd in London, England between approximately 1856 and 1900.

J.H. Steward Ltd was established in London, England in 1856. J.H. Steward was the head optician of the company and had businesses at 406 and 66 Strand and 54 Cornhill in London. In the mid 1800s he became the optician to Her Majesty's Government and the National Rifle, and National Artillery Associations.

References:
Thomas Nicholas, Annals and antiquities of the counties and county families of Wales, Oxford University Press, 1872.
Edwin Banfield, Barometers: Aneroid and Barographs, Baros Books, England, 1985

The telescope was used at Sydney Observatory, Watson Road, Observatory Hill, Sydney, New South Wales, Australia.

Telescope, 3 1/4" refractor with accessories in case, metal / glass / wood, made by J H Steward Ltd, London, England, 1856-1900, used at Sydney Observatory, New South Wales, Australia, 1858-1914

A 3 1/4 inch refractor telescope with accessories including two eyepieces, a lens, a metal bracket and an adjusting tool in a wooden case. There is also a wooden tripod and equatorial mount with the telescope.

Observatory Stock no 297.

Made: J H Steward Ltd; London, England; 1855 - 1900


Used: Sydney Observatory; Sydney Observatory; 1858 - 1914

H9975

1855 - 1900