Autoguiding requires a means for a computer to send guiding signals to a telescope’s mount. For most mounts, especially the entry-level ones, a separate device can be used to enable the computer ‘talk’ to the mount—an example of which is a USB Guide Port Interface or GPUSB.

GPUSB_ShoestringAstronomy

USB Guide Port Interface (GPUSB)

To learn more about this device and how it is used in astrophotography, click here.

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© Anthony Urbano (Manila, Philippines)

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