This photo is not altered. That is the sun.
The reason the sun looks like a lunar eclipse is because of the Harmattan haze, which is also why the sky is the same color as the ground. The Harmattan is a “cold-dry and dusty trade wind.” The “northeasterly wind blows from the Sahara Desert into the Gulf of Guinea between the end of November and middle of March.” Or, when I was there. It is fierce, and the physical attack of sand, grit and dust on your face, body, and everything else is unrelenting. But it also makes the sun look like this (that is, the ring or circle of light normally seen around the sun – the halo effect – is gone), and creates these surreal, mesmerizing visuals everywhere you look. Eating and sleeping outside, as we did, can be a bit challenging, and going to the bathroom…keep your back to the wind, and do the best you can. I only had to endure the wind for the duration of my trip – and certain days were far less windy then others. As difficult as life already is for people and animals who inhabit the Sahara, can you imagine living with the Harmattan each year as well? Bahr al Ghazal, Chad.