A closeup of Sirius in Canis Major, taken in moonlight, with the 130mm f/6 apo refractor. This is a stack of six 2-minute exposures and three 30-seco


A closeup of Sirius in Canis Major, taken in moonlight, with the 130mm f/6 apo refractor. This is a stack of six 2-minute exposures and three 30-second exposures to reduce the core brilliance, with the short exposures blended in with a luminosity mask. All with the Canon 6D MkII at ISO 800. The diffraction spikes were added with Astronomy Tools Photoshop actions.


Size: 5400px × 3600px
Photo credit: © Alan Dyer / VWPics / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: alpha, astro, astronomy, bright, canis, dog, major, majoris, photography, sirius, skies, sky, star, stars, stellar