Imaging technique
Deep-Sky Imaging
Long-exposure imaging of faint, extended objects — galaxies, nebulae, and clusters — that requires accurate tracking of the sky's motion, often over many hours of accumulated exposure. Deep-sky imaging leans on an equatorial mount, autoguiding, and careful calibration to draw out signal from targets far too faint to see by eye.
Highlights
- ›Hours of tracked exposure on faint galaxies and nebulae
Related techniques & equipment
Across the observing chain
Knowledge connections
- Associated withAstrophotography
- Associated withEquatorial Mount
- Associated withAutoguiding
- Associated withCalibration Frames
- Associated withNarrowband Imaging
- Associated withPhotometry
- Associated withNarrowband Imaging
- Associated withAutoguiding
- Associated withPlate Solving
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.