celestial-body
Planet Mercury
The innermost classical wanderer, swift in the sky. Astrologers named it for Hermes without making the planet into the hymn’s cattle-thief.
Also known as Hermes (planet)
Astrology
Planet Mercury is used in Astrology.
Ptolemy treats Mercury as a wanderer whose condition mixes. The planet is a chart factor, not the Homeric hymn’s newborn thief.
from Claudius Ptolemy · Tetrabiblos, c. 150 CE
used in · sourced · documented
Planet Mercury is a counterpart of Hermes.
Greek astronomers named the innermost wanderer for Hermes. The name is a correspondence, not a proof that the god and the light are one being.
from Claudius Ptolemy · Tetrabiblos, c. 150 CE
counterpart of · sourced · culturally specific
Planet Mercury is associated with Knowledge.
Later astrological handbooks give Mercury a share in speech and craft. That is a planetary job-description, not Thoth’s palette in the Duat.
from Claudius Ptolemy · Tetrabiblos, c. 150 CE
associated with · partially sourced · documented
Hermes is a counterpart of Planet Mercury.
The planet was named for Hermes. Walking from the god should also reach the wanderer without merging hymn and handbook.
from Claudius Ptolemy · Tetrabiblos, c. 150 CE
counterpart of · sourced · culturally specific
Alchemy
Planet Mercury is historically related to Mercury (metal).
The wanderer and the metal share a name in alchemy and astrology. Keep the sky-object and the flask distinct.
from Tabula Smaragdina (Emerald Tablet), medieval Latin tradition (Arabic antecedents)
historically related to · sourced · documented
Mercury (metal) is historically related to Planet Mercury.
Alchemists and astrologers used the same name for the liquid metal and the innermost wanderer. The metal is not the light in the sky.
from Tabula Smaragdina (Emerald Tablet), medieval Latin tradition (Arabic antecedents); Ge Hong; James R. Ware (translation) · The Nei P’ien of Ko Hung, 1966 (this translation); Ge Hong 4th century CE
historically related to · sourced · culturally specific
Planet Mercury is used in Calendar.
Mercury’s swift light has been hung on the week and the hour. The calendar borrows the wanderer’s pace without turning the planet into the hymn’s cattle-thief.
from SHOE.BLUE · SHOE.BLUE, 2026
used in · interpretive · modern interpretation
sources
- Tetrabiblos · Claudius Ptolemy
Ptolemy, Tetrabiblos.
- Tabula Smaragdina (Emerald Tablet)
Tabula Smaragdina, medieval Latin Emerald Tablet.
- SHOE.BLUE · SHOE.BLUE
SHOE.BLUE, Atlas instrument voice.
- The Nei P’ien of Ko Hung · Ge Hong; James R. Ware (translation)
James R. Ware, Alchemy, Medicine and Religion in the China of A.D. 320 (Baopuzi inner chapters).