Free Astronomy Magazine September-October 2025 ARABIC VERSION

www.northek.itwww.facebook .com/northek.itinfo@northek.i t phone+39 01599521 Cassegrain > SCHOTTSupremax33optics > opticaldiameter355mm > usefuldiameter350mm > focallength5250mm > focal ratiof/15 > 18-pointfloatingcell > FeatherTouch2.5”focuser Dall-Kirkham > SCHOTTSupremax33optics > opticaldiameter355mm > usefuldiameter350mm > focallength7000mm > focal ratiof/20 > 18-pointfloatingcell > FeatherTouch2.5”focuser Ritchey-Chrétien > SCHOTTSupremax33optics > opticaldiameter355mm > usefuldiameter350mm > focallength2800mm > focal ratiof/8 > 18-pointfloatingcell > customized focuser

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