Images of the Sun, our local star, at a range of wavelengths with specialist solar telescopes. Imaging tutorials, solar bits and pieces for sale, talks and outreach with the Charlie Bates Solar Astronomy Project CBSAP.
A quiet sun, but there's always something to see in CaK wavelengths on the disk. Taken with the 40mm scope at 650mm focal length with the homebrew CaK filter and the PGR Blackfly IMX249 GigE camera.