Suns in alchemy
In alchemic and Hermetic traditions, suns () are employed to symbolize a variety of concepts, much like the sun in astrology. Suns can correspond to gold, citrinitas, generative masculine principles, imagery of 'the king' or Apollo, the fiery spirit or sulfur, the divine spark in man, nobility, or incorruptibility. Recurring images of specific solar motifs can be found in the form of a "Dark" or "Black Sun", or a green lion devouring a sun.
Sol niger
Sol niger (black sun) can refer to the first stage of the alchemical magnum opus, the nigredo (blackening). In a text ascribed to Marsilio Ficino three suns are described: black, white, and red, corresponding to the three most used alchemical color stages. Of the sol niger he writes:
The black sun is used to illuminate the dissolution of the body, a blackening of matter, or putrefaction in Splendor Solis, and Johann Daniel Mylius’s Philosophia Reformata.
In popular culture
Sol niger imagery can be found in the recent works of musicians including: