guider
8.8
A device that keeps a camera or telescope pointed at a moving star
- noun
- /ˈɡaɪdər/
- Specialized
:
autoguía
- An effective guider is essential for long exposures in deep-sky photography, as it maintains alignment with celestial objects.
- an off-axis guider
- axis guider
- a radial guider
Examples
-
In effect, the arrangement serves as a high-speed automatic guider.
Academic text (1991) -
At first, we invested in an off-axis guider, a reticle eyepiece, and a few T-adapters for astrophotography (and told guests to bring their own cameras).
Academic text (2000) -
The astronomer adjusted the guider to ensure the telescope stayed focused on the moving comet.
-
Using a high-quality guider, the astrophotographer captured stunning images of distant galaxies.
Synonyms
8.2
A device that automatically keeps a telescope pointed at a star or object by making small moves
keeps a telescope or camera steadily pointed as the object moves across the sky
How Precise
Surface Forms
Morphology
Etymology
Guider comes from the simple word guide ('to lead' or 'show the way') plus the ending -er that names what does the action. So a guider is a tool that 'leads' a telescope or camera across the sky to keep it steady and pointed at a star.