A Sky Brightness Contrast Measurement before Sunrise and after Sunset over a Baghdad Region, Iraq
AK Ahmed - Journal of Physics: Conference Series, 2021 - iopscience.iop.org
In this work, an analytical study had been made of sky brightness variations using a
photometer of Sky Quality Meter (SQM-LU). The sky brightness measurements were …
photometer of Sky Quality Meter (SQM-LU). The sky brightness measurements were …
[PDF][PDF] Danjon Limit: Schaefer's Method
WS González - academia.edu
Schaefer (1991) determined the Danjon limit or minimum angle between the Sun and the
Moon from which the Moon can be seen shortly after the conjunction. Schaefer's method …
Moon from which the Moon can be seen shortly after the conjunction. Schaefer's method …