PHA I observations
收藏B2FIND2026-04-11 收录
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The Photoelectric Astrolabe Mark I (PHA I) has been revised with a new combined prism which could work as an almucantar with zenith distance of 45 degree, to measure continuous...
Ⅰ型光电等高仪（Photoelectric Astrolabe Mark I，PHA I）经改进并搭载新型组合棱镜，该棱镜可充当天顶距为45度的等高圈装置，用于开展连续测量……
