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What is the youngest new moon observation record with a telescope, binocular, and with unaided eye?

April 26, 2017binocular eye moon observation record telescope unaided youngest

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What is the youngest new moon observation record with a telescope, binocular, and with unaided eye?

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We are unaware if any one keeps the record of telescope sightings. The youngest new moon observed with a binocular is 13.47 hours of age, while with unaided eye, it is 15.4 hours. [See “Records of Young Moon Sightings, Quarterly Journal of Royal Astronomical Society (1993) 34, p53-56, article by Schaefer, Ahmad, and Doggett].