2018 June 26 Sun - AR12715
AR12715 is now near the W limb. 3 major sunspots, and a few smaller ones, are visible.
Flares are visible to the north of the following sunspot, and to the south of the leading 2. Extensive filaments are on display.
As the slow motion is still unavailable, I have to continue with push or pull the telescope to put the image in field. This task becomes very tedious when working on close-up imaging, and I have to use very short exposures (thus high gain) to avoid blur images.
Telescope: AP Starfire EDT 155 mm f/9.
stopped to 80 mm (f/17.5) for disc images, with 4X telecentric lens (f/36) for closeups
filter: Solar Spectrum SO1.5/0.3A with CERF prefilter
Camera: ASI1600MM, 4656X3520 pixels (3.8 micron), binned 2
North is up, east is to the left.
2018 June 26 Sun - AR12715
2018 June 26 Sun - AR12715
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Re: 2018 June 26 Sun - AR12715
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