Lunar Eclipse: Infrared Images and an Anomaly of Possible Internal Origin

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Science  11 Oct 1968:
Vol. 162, Issue 3850, pp. 252-254
DOI: 10.1126/science.162.3850.252


Infrared images of the lunar eclipse of 13 April 1968 were obtained and compared with infrared images of the 19 December 1964 eclipse. A similarity of apparent strength and distribution of most thermal anomalies on the maria is evident from inspection of these images, indicating that these features are not ephemeral. One new linear thermal anomaly was discovered, which is thermally enhanced during the lunar afternoon. Its close relation to a lunar crustal fracture line and other features of probable internal origin suggests that this anomaly may be of internal origin.

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