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单词 Franklin-Adams charts
释义
Franklin-Adams charts

Astronomy
  • A pioneering photographic sky atlas by the English amateur astronomer John Franklin-Adams (1843–1912), published posthumously in 1913–14. It consists of 206 sections 15° square covering the entire sky, taken from Johannesburg, South Africa, and Godalming, England. It shows stars as faint as 17th magnitude on a scale of 15 mm per degree.


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