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Purple Mountain Observatory, Nanjing, Jiangsu, PRC -- Return
23. 40 cm Aperture Twin Refracting Telescope - This is used to observe minor planets, comets meteors, etc. |
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Purple Mountain Observatory, Nanjing, Jiangsu, PRC -- Return
23. 40 cm Aperture Twin Refracting Telescope - This is used to observe minor planets, comets meteors, etc. |
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