The galaxy trio M98 (at right near the star 6 Comae), M99, the Coma Pinwheel (at bottom), and M100 (at upper left), captured in a deep blue twilight sky on June 4, 2019. The pair of NGC 4602 and NGC 4298 are left of M99 at bottom left. Images taken later under darker skies were plagued by haze moving in. Despite the bright sky galaxies as faint as magnitude 14.5 are recorded. This is a stack of 6 x 2-minute exposures at ISO 1600 with the Canon 6D MkII and Astro-Physics Traveler 105mm apo refractor at f/5.8 with the Hotech field flattener. Shot for a book illustration.
A panorama of a display of noctilucent clouds across the northern horizon on June 4/5, 2019 from home in southern Alberta. This was at about local midnight MDT. This is a stitch of 7 segments with generous overlap taken with the 135mm lens and Sony a7III camera. Exposures were 4 seconds at f/2.8 and ISO 800.
A wide-angle view of the display of noctilucent clouds across the northern horizon on June 4/5, 2019 from home in southern Alberta. This was at about local midnight MDT with twilight still brightening the sky, as it does all night at this time of year from my latitude of 51° N. Cassiopeia is at upper right, Capella is above the trees, and Perseus is skimming the northern horizon at centre. This image shows the NLCs in context to show their angular extent. This is a single image with the 24mm lens and Sony a7III camera. Exposure was 5 seconds at f/2.8 and ISO 800.
