Clear sky with bright Moon 96% illuminated.
Pascal Hilkens Astro Home Page
Thursday, September 27, 2018
Tuesday, September 25, 2018
Monday, September 24, 2018
Sunday, September 23, 2018
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.
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.
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. |
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.
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