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Old Monday 7th April 2014, 09:42   #1
Vespobuteo
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Join Date: Aug 2013
Location: Utopia
Posts: 2,143
star test with an artificial star

is it possible to set up an artificial star when doing a
star test?

I tried yesterday with a inverted pin hole camera,
a small box with a strong LED light inside
and a very fine pinhole in piece of black tape,
on the side of the box,

I managed to see some airy discs towards
the edge of the pinpoint light source,
but not in the center,
(just some strange patterns there…a bit like psychedelia patterns without colors..)

the light source looked otherwise circular,
looking of center, it became more distorted,

distance was about 10 meters/30 feet

could this test work and show something relevant?
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