This Should Help a Little:
A largely semi-arid belt of barren, sandy and rock-strewn land, the Sahel marks the physical and cultural transition between the continent's more fertile tropical regions to the south and its desert in the north. ... The Sahel also suffers from ethno-religious tensions, political instability, poverty and natural disasters.
Thats whats called the Ecliptic.
Answer:
In my opinion the Star A will give off light that appears to have no shift.
Explanation:
Due to it is closer to us than the other two, and probably the blue color is brighter than the others.
