Imaging technique
Autoguiding
Keeping a telescope locked precisely on target during a long exposure by continuously imaging a guide star and sending tiny correction commands to the mount to cancel tracking errors. Autoguiding is what makes hours-long deep-sky exposures possible without the stars trailing.
Highlights
- ›Locking on a guide star to cancel tracking drift
Related techniques & equipment
Across the observing chain
Knowledge connections
- Associated withDeep-Sky Imaging
- Associated withEquatorial Mount
- Associated withDeep-Sky Imaging
- Associated withN.I.N.A.
- Associated withPHD2 Guiding
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.