Observation request for Comet C/2013 A1 Siding Spring
收藏ESA Earth Online2026-06-22 收录
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C/2013 A1 will make a close approach to Mars. Proposal to measure the size of the nucleus by taking images at 70, 100,and 160 microns to determine any hazard the coma or tailmight have on the orbiting Mars probes.
