Today two big sunspot groups were prominently visible on the sun:
The sun shows only few spots when near solar minimum. Today the Spots AR2629 and 2628 were clearly visible.
These days the large sunspot AR2456 is very prominent on the sun’s disc:
Today the tiny disc of mercury crossed in front of the sun. The weather didn’t cooperate fully, and I had to switch mounts as the Meade randomly stopped tracking in RA, and the WiFi router for the roof didn’t work as expected and tested… but I was still able to get some decent images… Read More
Today I was making sure everything is in working order for Monday’s transit of Mercury across the sun.
I was able to fix the issue of the declination runaway motor of our club’s LXD-650 mount, and took some images using the 127mm refractor with a 1,4x teleconverter.
On Monday, 9th of May will be another transit of Mercury across the sun, here are some pictures from May 7th 2003:
Early morning May 7th some amateur astronomers in Vorarlberg packed their gear to observe the Mercury transit from the Bödele above Dornbirn. We had some beautiful weather, and while there were few visitors, TV and Radio came and kept us busy with interviews.
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
The sky was beautifully clear today, so I decided to try out the QHY5-II camera on the sun:
Today the sun had some nice sunspots and offered a good opportunity to test the new mount I have on loan from the VAA, my astronomy club.