An intermittent illumination observed overhead, typically at night, can be attributed to various sources. Examples range from celestial bodies affected by atmospheric conditions to artificial objects employing flashing signals for identification or navigation. The visual characteristic of on-off cycling distinguishes it from steady sources of light.
The presence of such an observation can serve numerous functions. Historically, it has been a tool for astronomical study, allowing for the analysis of variable stars or the tracking of satellites. Furthermore, it provides a crucial element in aviation safety, marking aircraft positions and potential hazards. The perceived regularity and color of the phenomenon can be vital in determining its origin and purpose.
