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Observation by Bill Barton: Dipleidoscope (Dent Patent Meridian Inst...

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Bill Barton

Observer

Bill Barton

Observed

2019 Oct 08 - 07:25

Uploaded

2019 Oct 08 - 07:25

Objects

Historical

Title

Dipleidoscope (Dent Patent Meridian Instrument)

About this image

Designed to be easier to use than a transit telescope for determining time these instruments first appeared in 1843 and were still being made in the 1870’s.

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Comments
Len Entwisle
Len Entwisle, 2019 Oct 08 - 11:38 UTC

On Googling to expand my historical knowledge I found this set of notes and illustrations by your good self   http://www.oasi.org.uk/Telescopes/Dipleidoscope/Dipleidoscope.php .  Thanks for posting.

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