In order to provide a continuous, multi-color time-domain surveying of the brightest regime of the naked-eye optical sky, we designed the Mosaic Array of Numerous Ultrasmall Lens (MANUL). This device is a palm-sized “astronomical observatory,” featuring optics, filters and all necessary electronics (including a TCP/IP-based downlink), all are mounted on 2-inch printed circuit boards. Based on these units, a modular and mosaic arrangement of CMOS imaging sensors with an effective resolution of 1’/pixel can be built. Here we introduce the main design concepts, the early prototyping and the results of the preliminary photometric quality analysis of this initiative.
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