Atmospheric Phenomenon

"Art thou not aware of thy Sustainer [through His works]? - how He causes the shadow to lengthen [towards the night] when, had He so willed, He could indeed have made it stand still: but then, We have made the sun its guide"(Quran 25:45).

The “Belt of Venus” is an atmospheric phenomenon that creates a pink band in the sky at sunrise and sunset. It is actually the area between Earth’s shadow and the blue sky. The belt is similar to alpenglow, which creates a reddish glow just over the horizon.

https://www.phenomena.org/atmospheric/beltofvenus/