Encyclopedia
The Encyclopedia is Asteria Star's reference layer. It defines the vocabulary, traces how humanity's understanding of the sky developed, and gives cultural and historical context. Scientific history and physics are presented factually; the history of astrology and mythology are presented as cultural heritage.
Glossary
Plain-language definitions of astronomy and astrology terms.
History of Astronomy
How humans learned to read and measure the sky.
History of Astrology
The cultural history of a centuries-old tradition.
Ancient Civilizations
How early cultures observed and used the sky.
Greek Mythology
The Greek myths behind constellation and planet names.
Roman Mythology
The Roman names that the planets still carry.
Egyptian Mythology
Sky deities and star lore of ancient Egypt.
Babylonian Astronomy
Early systematic record-keeping of the heavens.
Famous Astronomers
The people who changed how we see the cosmos.
Space Exploration
The story of how humanity reached into space.
Physics Basics
The physical ideas that make sense of the universe.
Timeline
A chronological thread through astronomy's milestones.
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Astronomy
The universe, studied with evidence.
Sky Guide
What to see in the sky, and when.
Astrology
A symbolic tradition, presented as culture.
Calculators
Methods for the sky — astronomical and traditional.
Observatory
See the universe — through verified, openly licensed imagery.
Guides
Learn the sky, step by step.