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Valdemar Axel Firsoff FRAS was known principally as an amateur astronomer. He was born on 29 January 1912 in Bila Tserkva, Russian Empire, and died on 19 November 1981. He lived in Lochearnhead, Scotland, before moving to Somerset, England, where he settled in Glastonbury.

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  • Axel Firsoff (en)
  • 菲尔索夫陨击坑 (zh)
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  • Valdemar Axel Firsoff FRAS was known principally as an amateur astronomer. He was born on 29 January 1912 in Bila Tserkva, Russian Empire, and died on 19 November 1981. He lived in Lochearnhead, Scotland, before moving to Somerset, England, where he settled in Glastonbury. (en)
  • 菲尔索夫陨击坑(Firsoff)是位于火星欧克西亚沼区子午线高原中的一座撞击坑,它的中心坐标为北纬2.66度,西经9.42度,直径90公里,其名称取自英国天文学家瓦尔德马尔·阿克塞尔·菲尔索夫(Valdemar Axel Firsoff),2010年被正式接受。 菲尔索夫陨击坑的部分区域显示出很多的岩层结构,该地区其他一些陨坑也是如此。火星上许多地方都有分层叠压的岩石。岩石可以通过多种方式形成岩层,火山、风或水都会形成岩层。很多证据表明,其中至少一些在火星上看到的地层,尤其是菲尔索夫陨击坑中的,是与地下水有关。 陨石坑中有一些土墩,可能是由泉水形成,它们有时在坑顶会显示角砾岩,一些土墩沿笔直的断层分布。土墩的成分和形状,表明水从土墩中流出,然后沉淀为矿物质。在《火星沉积地质学》中,可以找到对许多火星分层实例的详细讨论。 在2014年5月的一次研讨会议上,菲尔索夫陨击坑被选为2020火星车预期探索的26个地点之一。陨击坑中的一些岩层含有硫酸盐,而这些硫酸盐很有可能保存了生命的痕迹。该探测器车将寻找生命迹象并收集样本,以便在下一次任务中带回地球。显微镜将寻找细胞和其他生命迹象,它还将测试一种从火星二氧化碳大气层中提取氧气的装置。这是未来人类所需要的技术。 (zh)
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  • Axel Firsoff (en)
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  • Axel Firsoff (en)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/V._A._Firsoff.png
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