Camera OpenAstroGuider V3

Specifies the edge length of the mostly square pixels that make up a camera sensor.

For long exposure times, many CCD cameras are cooled to reduce thermal noise and achieve higher image quality. CCD cameras are grouped into three categories:
- no cooling
- passive cooling via cooling fins
- active cooling (e.g. using a fan and Peltier element)

Colour cameras produce quick results, monochrome cameras capture more detail.

The smaller the focal length of an eyepiece, the higher the magnification when used with a telescope.