- Sagittarius
- Saros
- Satellites
- Satellitium
- Saturn chasing the Moon
- Saturnalia
- Saturnine
- Scorpio
- Secondary Progressions
- Sedna
- Seer
- Selena
- Semi-Arc
- Semi-decile
- Semi-sextile
- Semi-square
- Semicircle
- Senses, Significators of the
- Separating, separation
- Sesqui-quadrate
- Sesquiquintile
- Seven
- Sexagenary
- Sextile
- Sextiles
- Sidereal Clock
- Sidereal Day
- Sidereal Time
- Sidereal Year
- Sign
- Sign, Aquarius
- Sign, Aries
- Sign, Cancer
- Sign, Capricorn
- Sign, Gemini
- Sign, Leo
- Sign, Libra
- Sign, Pisces
- Sign, Scorpio
- Sign, Taurus
- Sign, Virgo
- Sign: Sagittarius
- Significator
- Signs, Classifications of:
- Signs, The Symbology of Twelve
- Sinister
- Slow of Course
- Sol
- SOL-om-on
- Solar Astrology
- Solar Cycle, or Cycle of the Sun
- Solar Day
- Solar Equilibrium
- Solar Revolution
- Solar Semicircle
- Solar System
- Solar System Bodies: Astronomical Considerations
- Solar System: Dimensions
- Solar System: Motions
- Solar Time
- Solar Year
- Solomon's Seal
- Solomon's Temple
- Solstices
- Soma
- South Latitudes
- Southern Signs
- Spectroscope
- Speculum
- Sphere
- Sphinx
- Square
- Standard Time
- Star of Bethlehem
- Stars
- Stationary
- Stations
- Stellium
- Strength of a planet
- Succedent Houses
- Sunspot Cycle
- Supercycle
- Superior Planets
- Swift in Motion
- Synodical Lunation
- Synthesis
- Syzygy
ASTROLABE ENCYCLOPEDIA
