nebulae / 2026-01-11

Bubble Nebula

NGC 7635

Bubble Nebula

The Bubble Nebula is a good example of why processed astronomical images are not fake colour in the casual sense. They are translations: invisible structure made readable by careful filtering, calibration and contrast.

Constellation
Cassiopeia
telescope
Altair refractor
camera
Mono cooled camera
filters
Narrowband
exposure
Long integration over several sessions
location
Chapel Astro
software
PixInsight