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Stratospheric balloon observations of comets C/2013 A1 (Siding Spring), C/2014 E2 (Jacques), and Ceres
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文摘

First ever images of Oort Cloud comets from a stratospheric balloon observatory.

Comet Siding Spring produces 6 × 1027 H2O s−1 assuming optically thin 2.7 µm emission, maybe a lower limit.

Superheat dust population discovered at Comet Jacques.

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