Astrophotography rhymes with:
photography, chromatography, cinematography, photography, chromatography, cinematography, photography, autobiography, bibliography, biography, choreography, chromatography, cinematography, crystallography, demography, echography, geography, hagiography, historiography, iconography, kaumography, lithography, mammography, oceanography, orthography, photography, phytogeography, polarography, pomography, pornography, radiography, topography, typography