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Solar corona photography, part BPhotographic observations of the solar corona by the Apollo 16 command module pilot while in lunar orbit are reported. These were designed to provide data on outer coronal forms and intensities to elongation angles of 25 deg. The results of Apollo 15 solar corona photography verified the procedures and provided the first photographs of identifiable coronal streamers curving at elongation angles of some 10 deg. By using the Apollo 15 data, exposure settings were optimized for Apollo 16, and the results show a significant improvement in photometric quality over the large range of brightness to be photographed. Ground observations of the inner solar corona (to approximately 2 solar radii from Sun center) indicate a general lack of coronal structure, and results of data reduction thus far show no streamer structure at large elongation angles.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Macqueen, R. M.
(High Altitude Obs. Houston, TX, United States)
Ross, C. L.
(High Altitude Obs.)
Mattingly, T. K.
(NASA Lyndon B. Johnson Space Center)
Date Acquired
August 7, 2013
Publication Date
January 1, 1972
Publication Information
Publication: Apollo 16 Prelim. Sci. Rept.
Subject Category
Instrumentation And Photography
Accession Number
Distribution Limits
Work of the US Gov. Public Use Permitted.
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