Imaging technique
Narrowband Imaging
Imaging through filters that pass only the light of specific emission lines — hydrogen-alpha, oxygen-III, sulphur-II — to isolate the glow of ionised gas and cut through light pollution and moonlight. Narrowband imaging reveals the intricate structure of emission nebulae and is the basis of the popular false-colour 'Hubble palette'.
Highlights
- ›Isolating emission lines to cut light pollution and reveal nebulae
Related techniques & equipment
Across the observing chain
Knowledge connections
- Associated withDeep-Sky Imaging
- Associated withDeep-Sky Imaging
- Associated withAstronomical Filter
- Associated withSpectroscopy
- Associated withEmission Nebula
- Associated withHII Region
Sources
The primary and reference sources this topic draws on.
- NASANational Aeronautics and Space Administration
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.