Abstract A program of routine observations of lunar occultations has been initiated at the Michael Adrian Observatorium using a 1.2 m telescope equipped with a commercial CMOS camera. The goal is mainly the direct measurement of the angular diameter of late-type stars, as well as of binary stars with small separations. Among the results reported in this first paper, we discuss a measurement of Aldebaran (α Tau), of the two cool, chemically peculiar giant stars R Gem and T Cnc, and of the two newly detected binary stars SAO 139528 and SAO 119489. This work demonstrates the capability to carry out milliarcsecond-level investigations at this relatively small facility on sources down to ≈ 10 mag. We plan to continue this routine program in the coming years, also in coordination with other similar efforts at various observatories with comparable instrumentation.

中文翻译：

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Trebur 天文台的第一次月球掩星结果

摘要 迈克尔·阿德里安天文台已开始使用配备商用 CMOS 相机的 1.2 m 望远镜对月球掩星进行常规观测。目标主要是直接测量晚型恒星以及小间距双星的角直径。在第一篇论文中报告的结果中，我们讨论了对毕宿五 (α Tau)、两颗冷的、化学上奇特的巨星 R Gem 和 T Cnc 以及两颗新探测到的双星 SAO 139528 和 SAO 119489 的测量。工作证明了在这个相对较小的设施上对低至 10 mag 的源进行毫秒级调查的能力。我们计划在未来几年继续这个例行程序，