The resolution of a telescope is presented in arcsecond (”). It’s related to the aperture of your telescope. The larger the aperture, the closer the object it can resolve. A high resolution telescope is handy when it comes to double stars observation, Moon features observation and many more.
θ=116â€Ã·D(mm)
θ: Resolution (in arcsecond)
D: Diameter (in mm)
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