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Apogee PSF io.svg en Scheme representing apogee and perigee Translated to Ido io Skemo di lunala orbito apogeo perigeo Tradukita de Angliana linguo vers Ido Modified from File Apogee PSF svg PDScottForesman Apogee PSF svg original upload log This image is derivative work of the following images File Apogee PSF svg with PDScottForesman