Photoheliograph telescope, made by J H Dallmeyer

Made by Dallmeyer, J H in London, England, 1873-1874.

“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 Venus....

Summary

H10211
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 guage 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

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

History

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).
Sydney Observatory 1874

Cite this Object

Photoheliograph telescope, made by J H Dallmeyer 2017, Museum of Applied Arts & Sciences, accessed 24 November 2017, <https://ma.as/231198>
{{cite web |url=https://ma.as/231198 |title=Photoheliograph telescope, made by J H Dallmeyer |author=Museum of Applied Arts & Sciences |access-date=24 November 2017 |publisher=Museum of Applied Arts & Sciences, Australia}}
This object is currently on display at the Sydney Observatory.
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.

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