7 Dwarf Galaxies Found By Frankenscope

A new type of telescope made by stitching together telephoto lenses recently discovered seven celestial surprises while probing a nearby spiral galaxy - previously undetected dwarf galaxies.  Pieter van Dokkum, chair of Yale's astronomy department, designed the robotic telescope with University of Toronto astronomer Roberto Abraham. Their Dragonfly Telephoto Array uses eight telephoto lenses with special coatings that suppress internally scattered light. This makes the telescope uniquely adept at detecting the very diffuse, low surface brightness of the newly discovered galaxies. read more

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