Double Rainbow and Alexander's Band

Alexander's band lies between thetwo rainbows and is darker then the surrounding area.

Double Rainbow

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Very Bright Double Rainbow above #aarschot and surrounding areas.

Messier M57 Ring Nebula

Picture was taken beginning of August with Nikon D7500 on TALAPO80/480 f/6 (Stacking 13 DNG pictures using DeepSkyStacker and final editing by CS4) . The insert was taken on June 17, 2017 with ASI224MC on TAL200K.
M57 aka The Ring Nebula was one of my first aha looking in my first scope, a reflector 11cm. At that time I never thought I could make such great pictures of it.

Ready for Photokina 2018?

This week the doors open in Cologne (Germany) of the world's leading fair for imaging: photokina.

Don't miss it. 

Halo, Upper Tangent Arc, Sundogs and Circumzenithal arc

Combination of 2 pictures with on top the bright circumzenithal arc and 46° halo
In the middle the upper tangent arc and left/right from the Sun are sundogs.

Last Sunday, Sept 16 UT16h00, different halo's could be observed around #Averbode, #Diest, #Wolfsdonk.
Beside the two sundogs, east and west from the sun, a very bright circumzenithal arc could be seen at the zenith. Between the Sun and the circumzenithal arc is the faint upper tangent arc. Both 22° and 46° halo showed up aswell.

Sundogs, 22° Halo and upper tangent arc

Autumnal Equinox : start of Autumn

At 3h54 local time (UT1h54) the Sun is exactly above the Equator and day and night are of equal length;  In the Northern Hemisphere the autumnal equinox marks the beginning of Autumn.

Lezing Ruimteweer

Binnen enkele minuten start de lezing over de gevaren van Ruimteweer. Deze gaat door in de volksterrenwacht Mira te Grimbergen. De lezing wordt verzorgd door Prof Stefaan Poedts van KU Leuven.