Observation by John Hughes: Solargraphy

Uploaded by

Mr John William Hughes

Observer

John Hughes

Observed

2019 Dec 22 - 12:09

Uploaded

2019 Dec 22 - 12:26

Objects

The Sun

Equipment
  • Duct tape & cable ties
  • 4mm wood drill bit
  • Black photographic film canister
  • Tin foil, pin and fine sandpaper
  • Ilford Multigrade 4 5 x7 inch photographic paper
Exposure

One pin hole

Location

A drain pipe in North Essex

Target name

The Sun

Title

Solargraphy

About this image

I first came across the term ‘Solargraphy’ on the Stargazers Lounge forum and was directed to website dedicated to the art of Solargraphy.

This is a basic photographic method of recording the path of the Sun as the year progresses. This image commenced on 22 June 2019, the day after the Summer Solstice when the Sun was at its highest altitude in the sky and finished on 22 December 2019, the Winter Solstice when the Sun is at its lowest point. 

Using a basic pinhole camera I was able to record every clear day the track of the Sun across the southern sky, each day  the Sun’s altitude was getting slightly lower.

Whilst the camera is basic, the main challenge is to avoid water damage and as you can see from the image some rain has managed to find its way inside. However, the pinhole camera is cheap to make with the following purchases made via Amazon;

100 cable ties £5.49

20 35mm plastic film canisters £8.88

100 sheets of Ilford Multigrade 4 glossy photographic paper £25.98

The remaining items were already in the house.

Given the potential for disaster I made two pinhole camera’s and one of them provided this image, the other was washed out due to rain water getting in. Making more than one camera certainly improves the chances of success.

Anyone wishing to learn more about Solargraphy and how to construct the pinhole camera should check out http://www.solargraphy.com/index.php?option=com_content&task=view&id=16&Itemid=18

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