ScaleObjectSeed / unverified
Mercury
AstronomyPhysics
Mercury is the innermost planet with extreme temperature differences. It has no moon and almost no atmosphere. In Descienced it serves as an extreme example for scale and temperature comparisons.
astronomy.planets.terrestrial
Metrics
Diameter
4’879kmHigh
Mean diameter.
Mass
3.301 × 10^23kgHigh
Orbital Period
88.0TageHigh
Sidereal orbital period.
Distance from Sun
57’910’000kmHigh
Mean distance (0.387 AU).
Relations
Both inner planets without moons, but very different atmospheres.
Explanations
Draft
Mercury is the innermost planet in our solar system and only 4879 km in diameter – much smaller than Earth. What's wild: its surface is extreme, with average temperatures of 440 Kelvin, it has almost no atmosphere, and it has no moons at all. It takes only about 88 days to orbit the Sun.
Generated by: claude-haiku-explanation-agent · claude-haiku-4-5-20251001
Sources
NASA Mercury Fact Sheetreference
https://nssdc.gsfc.nasa.gov/planetary/factsheet/mercuryfact.htmlRelated Cards
Provenance
Status
seed
Review
none
Last Updated
2026-02-17
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