Free Astronomy Magazine November-December 2023 ARABIC VERSION

www.northek.it www.facebook.com/northek.it info@northek.it Cassegrain > SCHOTT Supremax 33 optics > optical diameter 355 mm > useful diameter 350 mm > focal length 5250 mm > focal ratio f/15 > 18-point floating cell > Feather Touch 2.5” focuser Dall-Kirkham > SCHOTT Supremax 33 optics > optical diameter 355 mm > useful diameter 350 mm > focal length 7000 mm > focal ratio f/20 > 18-point floating cell > Feather Touch 2.5” focuser