How to use telescope lenses?

So, how to use telescope lenses? Lenses are curved pieces of glass or other transparent material that are used to focus light and form an image. The glass used to make lenses is usually very pure. It …

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How to calibrate a telescope?

So, how to calibrate a telescope? A telescope is a precision instrument. Although your telescope contains some sophisticated electronics to make it easy to use, it can still be affected by small changes in the environment. You …

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