• 本文提出一种——密度底片已知亮度恒星PDS测微密度数据同时决定底片特性曲线星等

    A new method is suggested for determining the characteristic curve of a plate, as well as the magnitude zero point, using PDS microdensitometer data of stars of known brightness on the plate.

    youdao

  • 本文提出一种——密度底片已知亮度恒星PDS测微密度数据同时决定底片特性曲线星等

    A new method is suggested for determining the characteristic curve of a plate, as well as the magnitude zero point, using PDS microdensitometer data of stars of known brightness on the plate.

    youdao

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