High Quality Content by WIKIPEDIA articles! An astronomical source is the start, beginning, or origin of something that suggests (or indicates) the presence of an astronomical object or astronomical body, where a source is the start, beginning, or origin of something. Usually, any process that generates successive signals can be considered a source of such signals, but there are also transient sources that originate a signal or something only once. A source may have generated or be capable of generating something such as electromagnetic radiation or a star.

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