The Mercury

GPTKB entity

Statements (45)
Predicate Object
gptkbp:instanceOf planet
gptkbp:associated_with communication and travel in mythology
gptkbp:atmosphere hydrogen
oxygen
water vapor
0.11
calcium
helium
potassium
sodium
gptkbp:covers craters
gptkbp:designatedAs inferior planet
gptkbp:diameter 4,880 kilometers
gptkbp:has atmosphere
gptkbp:has_a weak
silicate rock
0.2056
3.7 m/s²
88 Earth days
3:2 spin-orbit resonance with its orbit
gptkbp:hasFilingDate 59 Earth days
https://www.w3.org/2000/01/rdf-schema#label The Mercury
gptkbp:is_a terrestrial planet
gptkbp:is_featured_in the Swift Planet
gptkbp:is_known_for moons
gptkbp:is_part_of gptkb:Solar_System
gptkb:inner_Solar_System
iron
second densest planet in the Solar System
closest_planet_to_the_Sun
smallest_planet_in_the_Solar_System
gptkbp:is_studied_in various telescopes and space missions.
gptkbp:isRegardedAs natural satellites
gptkbp:majorIndustry 75% of its radius
gptkbp:previousName the_Roman_messenger_god
gptkbp:surface up to 430 °C
as low as -180 °C
heavily cratered and old
similar_to_the_Moon's_surface
gptkbp:visibility the naked eye
certain times of the year
sunrise or just after sunset
gptkbp:visitedBy gptkb:MESSENGER
gptkb:Mariner_10
ancient times