Algerian Sahara is the largest desert in the world, extending between 800 and 1,200 miles and at least 3,000 miles from east to west, covers one-fourth the area of Africa including the lands of Algeria, Morocco, Libya, Tunisia and Egypt.
According to Airpano, One of the most favorable places to observe the starry skies is Africa. The famous Sahara Desert, in particular.
There are no inhabited places for hundreds of miles. That means absence of lights and smoke fog, which makes the air crystal clear. As a pleasant addition you can also adore the great dunes.
During the cloudless nights you can distinguish the most powerful stellar gathering and the Milky Way, as well as stellar constellations and even separate stars. They cover the sky with a fantastic carpet, shining and reminding of the greatness of the Universe.
Temperatures in the Algerian desert can plummet once the sun sets, from an average high of 100 degrees Fahrenheit (38 degrees Celsius) during the day to an average low of 25 degrees Fahrenheit (minus 4 degrees Celsius) during the night.
Source:African Fact View and Airpano