It seems to be a kind of trigger of a ripple effect where you need more and more gear to use and take with you.Įven though there are very powerful dedicated auto-guiding devices, like MGEN III, a large number of people still use a portable computer in the field. Why guiding is mentioned as first on this page. Like in may other cases, humans use a computer for complex things. Guiding corrections have to be coordinated with the tracking which is performed by the mount. Guiding generally requires an additional camera and often an additional mini-telescope. In the “dark”, past times, guiding used to be manual – manual guiding.
In our times, “guiding” is actually “auto-guiding”. Guiding corrects tracking errors of a star tracker or a mount. 200mm and exposures of 2min and longer will require guiding in most cases. In theory, the same would also work with an EQ or an AZ mount and a real telescope as long as the exposures and the focal length are short. This can be done either directly in the camera, with an intervalometer or in the app of the star tacker, like the app for the Sky-Watcher Star Adventurer Mini. When using a star tracker, you only need to do a polar alignment and setup a multi-exposure sequence to start shooting. Why and When a Computer-Based Control is Needed in Field
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