Blog

Long-form writeups of imaging sessions, processing experiments, and lessons learned.

• Crescent Nebula in OIII — HOO Project, Night 1 (NGC 6888)

  Night 1 of a multi-night HOO project on NGC 6888, the Crescent Nebula: 47 × 180 s of OIII with a Sky-Watcher 200PDS, and the per-sub data showing a sky that dipped to 288 ADU at astronomical midnight and held to within ±4% all night.

  2026-06-27

• Imaging NGC 6543, the Cat’s Eye Nebula — When Dawn Turns Your Frames White

  A summer build log on the Cat’s Eye Nebula (NGC 6543): 46 OIII subs with a Sky-Watcher 200PDS, and the per-frame data showing how dawn near the solstice drove the sky from 280 ADU to a pure-white 65,535 by 04:07.

  2026-06-26

• Imaging M33, the Triangulum Galaxy — a two-night build log

  How I captured the Triangulum Galaxy across two nights from a Bortle 3 site with a Sky-Watcher 200P and a one-shot-colour camera — gear, sessions and processing.

  2026-06-25

• The summer drought: why high-latitude DSO imaging stops for three months

  At 53.5° N the sky never goes truly dark from mid-May to early August. A look at why, with the geometry, the latitude curve, and the strategies that survive the drought.

  2026-06-10

• Goodbye, Bruno — our Dog Star

  This site is named astrohusky — for Bruno, my Siberian husky of thirteen years, my companion at the telescope through every cold, clear night. Today he left us. A goodbye, and a thank-you for the name.

  2026-05-22