The September 28th total lunar eclipse was very impressive, as it turned out to be a very dark one, and for once, it happened in a perfectly clear sky.
This is a collage I created from six separate exposures showing the extent of Earth’s umbra. The exposure times and ISO settings are given to show the huge difference in brightness between the partly and fully eclipsed moon. The collage was inspired by this visualisation: https://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=4340. The images were shot through a 127mm f/8 apochromatic refractor.
Here is a combination of two timelapse sequences:
After bad weather in August yesterday the sky was good enough for half a night of observing and photography Read More
Today I tried to capture a transit of the ISS across the disc of the sun, but somehow I missed it, even though I started my series of exposures according to a GPS clock. So the only result I can show is the face of the quiet sun, with only small sunspots littered across. Read More
Yesterday afternoon I decided to do some simple astrophotography high up in the mountains. I chose the Cavalljoch as the view to the south is unobstructed. My backpack was way too heavy, but somehow I managed to trek from Schattenlagant to the Cavalljoch. The night was the darkest night I ever experienced. M13 was clearly visible with indirect vision with the unaided eye. Read More
Currently Venus and Jupiter are pairing up for a brilliant conjunction in the evening sky, here are some images:
M13 and M3 are two very fine globular clusters visible in the spring sky:
After a long spell of clouds of rain, on sunday evening I took advantage of a few clear hours to get some more data on M51. This image is a combination of raw images from April 20th and May 10th. The total exposure time is now at 64 minutes.
The VAA, my astronomy club acquired a Canon EOS 60Da for astrphotography together with a Samyang/Rokinon/Walimex 85mm f/1.4 lens, here are some first results. Accidentially I forgot to use the RAW setting, therefore all images were acquired as JPEG… Read More