Photography of the Earth's Cloud Satellites from an Aircraft.
Under astronomically favorable circumstances, photographs do not reveal excess light near the triangular libration points of the earth-moon system. We find that the visible surface brightness of anomalous dust populations, if these populations do exist, is less than 10(-9) candela per square centimeter.
Wolff
C
C
Dunkelman
L
L
Haughney
L C
LC