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Correction to “Permanent shadow in simple craters near the lunar poles”
Author(s) -
Bussey D. Ben J.,
Lucey Paul G.,
Steutel Donovan,
Robinson Mark S.,
Spudis Paul D.,
Edwards Kay D.
Publication year - 2003
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2003gl017512
Subject(s) - impact crater , shadow (psychology) , simple (philosophy) , geology , astrobiology , geodesy , far side of the moon , astronomy , geophysics , physics , psychology , philosophy , epistemology , psychotherapist
[1] An analysis of simple craters in the lunar polar regions has produced new values for the minimum amount of permanent shadow in these areas, 7500 km and 6500 km, for the north and south pole respectively. These values were obtained by conducting illumination simulations of realistically shaped simple craters, <20 km in diameter, to investigate the size and latitudinal extent of permanently shadowed regions near the lunar poles. Craters as far as 20 from the pole still contain significant amounts of permanent shadow. Larger simple craters have slightly more relative permanent shadow than smaller craters. Seasonal effects are independent of crater size and latitude, with a crater having 15% more of its interior shadowed during a lunar day in winter than in summer.