
The Pelican Nebula, 300 s exposures totaling 3h25m with Astro-Tech AT65EDQ, ZWO ASI533MC, and iOptron CEM40. Full size

M31, the Andromeda galaxy, 300 s exposures totaling 45 min with Astro-Tech AT65EDQ, ZWO ASI533MC, and iOptron CEM40. Full size

M33, the Triangulum galaxy, 300 s exposures totaling 5.9 h with Astro-Tech AT65EDQ, ZWO ASI533MC, and iOptron CEM40. Full size

HCG68 cluster of galaxies with 24" CDK. Seventy minutes for each filter of RGB from 2026. Full size

M8 and M20 nebulae Luminance with 127 mm refractor. Luminance 8 h from 2023.

Nebulae in Cygnus with 135 mm camera lens. Ha 4 h for each of 6 mosaic panels from 2023.
Taken November 22, 2012, Nikon D3200, 18-55mm Lens, 37 Minutes worth of 30s Exposures at f/5 ISO 200, Focal Length 18mm

Taken with 180mm APO, 6 x 120s Luminance stacked with Montage. Custom matplotlib/numpy/pyfits log function. (matplotlib.cm.Greys_r)

Same image, fun colorscales in matplotlib :-) (matplotlib.cm.Accent)


180mm APO, 16 x 120s stacked with Montage, but plotted with custom numpy/matplotlib arctan function.

Taken with 180mm APO Refractor, 14 x 120s Exposures, stacked with Montage, plotted with APLpy using a sinh function.

Just a single exposure of above, again with the sinh function (didn't require Montage).
These images are licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License