The practice involves capturing images of the celestial sphere from within or near metropolitan areas. This form of astrophotography presents unique challenges due to elevated levels of artificial illumination and atmospheric particulate matter. A typical example involves using specialized equipment and techniques to document constellations, planets, or deep-sky objects despite the prevalence of city lights.
The significance lies in its ability to connect individuals with the broader universe, even within environments often perceived as disconnected from nature. The activity encourages scientific observation, artistic expression, and a greater appreciation for astronomical phenomena. Historically, such endeavors were limited by technological constraints, but advancements in sensor technology and image processing have expanded the possibilities for capturing faint celestial details from light-polluted regions.
