The Powerhouse acknowledges the Traditional Custodians of the ancestral homelands upon which our museums are situated. We respect their Elders, past, present and future and recognise their continuous connection to Country.
H10211 Telescope, photoheliograph, metal / glass, designed by Janssen and De La Rue, made by J H Dallmeyer, London, England, 1873-1874, used at Sydney Observatory, New South Wales, Australia. Click to enlarge.

Photoheliograph telescope made by J H Dallmeyer

Made
"I do not suggest that photographic observations should displace eye observations; on the contrary, I think that both eye and photographic observations ought to be made." Warren de la Rue 1873

This is one of the most significant telescopes held in the Powerhouse Museum's collection. While not officially part of the British Government's observation program, this telescope was purchased by Sydney Observatory and sent to Australia in 1874 along with attachments to photograph the Transit of …

Summary

Object No.

H10211

Object Statement

Telescope, photoheliograph, metal / glass, designed by Janssen and De La Rue, made by J H Dallmeyer, London, England, 1873-1874, used at Sydney Observatory, New South Wales, Australia

Physical Description

An astrographic photoheliograph telescope that can be divided into three parts, each part consisting of a brass tube with a glass lens. A brass rod with a screw gauge on one end attaches to the photoheliogrpah. Various components including a brass bracket and various sized screws accompany the telescope.
Observatory stock number 293

Production

Notes

The photoheliograph was made between 1873 and 1874 by J H Dallmyer in London, England.

History

Notes

The photoheliograph was owned by the Sydney Observatory, Stock No. 293 and used to observe the Transit of Venus in 1874 from Woodford, NSW (information taken from the blue file).

Cite this Object

Harvard

Photoheliograph telescope made by J H Dallmeyer 2021, Museum of Applied Arts & Sciences, accessed 16 October 2021, <https://ma.as/231198>

Wikipedia

{{cite web |url=https://ma.as/231198 |title=Photoheliograph telescope made by J H Dallmeyer |author=Museum of Applied Arts & Sciences |access-date=16 October 2021 |publisher=Museum of Applied Arts & Sciences, Australia}}

Incomplete

This object record is currently incomplete. Other information may exist in a non-digital form. The Museum continues to update and add new research to collection records.