Wednesday, June 24, 2015
Halo 22° and Upper Tangent Arc
This evening, nice halo's 22° on both side of the sun. And a couple of minutes later I could withness a upper tangent arc aswell.
Solargraph 2014-2015
It's always a special and exciting moment when you open the pinholecamera. In total 6 months exposure to all kind of weather conditions : snow, rain, freezing, fog and sunny.
This time two pinhole camera's were installed with the following result.
This time two pinhole camera's were installed with the following result.
Sunday, May 17, 2015
Beautiful sundog
This evening, low at the sky, a beautiful sundog or phantom sun could be observed.
Phantom sun with on the low-left the top of a balloon.
The sun on the right, the phantom sun on the left.
Wednesday, May 13, 2015
Observing the sun on July 5th 2015
On July 5th, 2015, the Flanders region will organize activities to observing the sun.See also http://www.vvs.be/subsite/zonnekijkdag/ontdek-onze-zon-op-5-juli-2015
I will keep you informed.
Sunday, May 10, 2015
Meteorites under microscope
Helios Astronomy club was invited by one of it's members Lieven - thanks for the nice invitation. On the agenda today, observing meteorites under the microscope. Jan brought along his meteorites collection - a mars meterorite, a iron meteorite and a rock sample impacted by a meteorite.
Tuesday, May 5, 2015
The Science behind gravitational lensing by spinning black holes
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