Moonwatch - July 14, 1988

Details Moonwatch - July 14, 1988 Moonwatch - July 14, 1988

Jul 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988s%26t....76...34d&link_type=abstract

Sky and Telescope (ISSN 0037-6604), vol. 76, July 1988, p. 34, 35.

Astronomy and Astrophysics

Astronomy

Lunar Albedo, Natural Satellites, Space Observations (From Earth), Twilight Glow, Caribbean Region, Central America, North America, South America, Moon, Popular, Earth-Based Observations, Telescope Methods, Astronomy, Phases, Mathematical Models, Procedure

Scientific paper

The Moonwatch program using amateur astronomers to obtain a wide range of naked-eye sightings of the new moon to test a mathematical model for predicting first visibilty of the new moon is discussed. The algorithm takes physical effects such as brightness of the twilight sky, clarity of the atmosphere at the observing site, and the physiology of the human eye into account. A 1987 test of visibility prediction obtained poor results due to weather conditions. Observers across North and Central America, the Caribbean, and northern South America are asked to record information about the time and location where they first see the crescent of the new moon appear on the horizon.

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