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Sunrise, sunset

Posted: Thu Dec 17, 2020 12:03 am
by Fishnut
This is beautiful.

A camera obscura was set up at the University of Hertfordshire’s Bayfordbury Observatory by Regina Valkenborgh in 2012, and in September this year the observatory’s Principal Technical Officer, David Campbell found it. The image depicts 2,953 arced trails of the sun rising and falling between summer and winter during a period of eight years and one month.

Image

Re: Sunrise, sunset

Posted: Thu Dec 17, 2020 12:12 am
by Gfamily
With an exposure of over 1/4 billion seconds, it's likely the longest exposure photographic image ever made.

Re: Sunrise, sunset

Posted: Thu Dec 17, 2020 12:16 am
by Martin Y
That's very moving. And is surely the second best use of a beer can.

Re: Sunrise, sunset

Posted: Thu Dec 17, 2020 12:20 am
by Fishnut
Gfamily wrote:
Thu Dec 17, 2020 12:12 am
With an exposure of over 1/4 billion seconds, it's likely the longest exposure photographic image ever made.
It's thought to have doubled the previous holder of the title,
According to the University of Hertfordshire, the German artist Michael Wesely is thought to hold the current record for the longest exposure photograph, captured over four years and eight months.

Re: Sunrise, sunset

Posted: Thu Dec 17, 2020 12:46 am
by Bird on a Fire
I love it, thanks.

Re: Sunrise, sunset

Posted: Thu Dec 17, 2020 12:48 am
by Gfamily
Martin Y wrote:
Thu Dec 17, 2020 12:16 am
That's very moving. And is surely the best second use of a beer can.
FIFY

Re: Sunrise, sunset

Posted: Thu Dec 17, 2020 1:25 am
by dyqik
There are some good ones of Eastbourne pier and Beachy Head, although they are only 6 months long.

Re: Sunrise, sunset

Posted: Thu Dec 17, 2020 1:26 am
by dyqik
Gfamily wrote:
Thu Dec 17, 2020 12:12 am
With an exposure of over 1/4 billion seconds, it's likely the longest exposure photographic image ever made.
There's about 8 months of on sky, on target time on your avatar, IIRC.