The sun 2017-01-28

The sun shows only few spots when near solar minimum. Today the Spots AR2629 and 2628 were clearly visible.

Astrophysics 127mm f/8 with Nkon TC-14EII and Nikon D750 Baader solar film (photographic density).

Giant Sunspot AR2456

These days the large sunspot AR2456 is very prominent on the sun’s disc:

Preparing for the mercury transit

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.

The sun 05-05-2016, Astro-Phsyics 127mm f/8, Nikon TC-14E II, Nikon D750, 1/4000s, Baader ND3.8 photographic solar film

The sun 05-05-2016, Astro-Phsyics 127mm f/8, Nikon TC-14E II, Nikon D750, 1/4000s, Baader ND3.8 photographic solar film

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2003 Mercury Transit

On Monday, 9th of May will be another transit of Mercury across the sun, here are some pictures from May 7th 2003:

Gif animation of mercury entering the suns disc.

Gif animation of mercury entering the suns disc.

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.

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Active Region 2339

Today the sunspot called AR2339 featured prominently on the sun’s disk:

IMG_7838_1600px IMG_7838_1600px-2

the images are single exposures using a Canon EOS 60Da, and a 127mm f/8 apochromatic refractor, using Baader Solar Film ND3.8 ISO100, 1/8000s

Sunspots 2015-04-18

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.