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On the dark side of the planet, temperatures average 110 K. [15] [82] The intensity of sunlight on Mercury's surface ranges between 4.59 and 10.61 times the solar constant (1,370 W·m −2). [83] Although daylight temperatures at the surface of Mercury are generally extremely high, observations strongly suggest that ice (frozen water) exists on ...
The temperature of Mercury's exosphere depends on species as well as geographical location. For exospheric atomic hydrogen, the temperature appears to be about 420 K, a value obtained by both Mariner 10 and MESSENGER. [4] The temperature for sodium is much higher, reaching 750–1,500 K on the equator and 1,500–3,500 K at the poles. [15]
Average density Average temperature Average surface gravity; Lowest ... Mercury [18] 23.1 m/s 2 Jupiter [18] ... The Nine Planets, ...
The planet has an albedo that depends on the characteristics of its surface and atmosphere, and therefore only absorbs a fraction of radiation. The planet absorbs the radiation that isn't reflected by the albedo, and heats up. One may assume that the planet radiates energy like a blackbody at some temperature according to the Stefan–Boltzmann ...
Weather. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach ... Mercury retrograde is an optical illusion that occurs when the planet Mercury appears to move backwards in ...
The effective temperature of a body such as a star or planet is the temperature of a black body that would emit the same total amount of electromagnetic radiation. [1] [2] Effective temperature is often used as an estimate of a body's surface temperature when the body's emissivity curve (as a function of wavelength) is not known.
The eight planets of the Solar System with size to scale (up to down, left to right): Saturn, Jupiter, Uranus, Neptune (outer planets), Earth, Venus, Mars, and Mercury (inner planets) A planet is a large, rounded astronomical body that is generally required to be in orbit around a star, stellar remnant, or brown dwarf, and is not one itself. [1]
Here's what to know about the brief tenure of our solar system's smallest planet. ... remember the order of the planets in the solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus ...