Mercury
planet
Mercury
GENERAL NEWS: Mercury is the smallest and closest to the Sun of the eight planets in the Solar System with an orbital period of about 88 Earth days. Because it has almost no atmosphere to retain heat, Mercury's surface experiences the greatest temperature variation of all the planets, ranging from 100 K (−173 °C; −280 °F) at night to 700 K (427 °C; 800 °F) during the day at some equatorial regions. The poles are constantly below 180 K (−93 °C; −136 °F). Mercury's axis has the smallest tilt of any of the Solar System's planets, but it has the largest orbital eccentricity. At aphelion, Mercury is about 1.5 times as far from the Sun as it is at perihelion. Mercury's surface is heavily cratered and similar in appearance to the Moon, indicating that it has been geologically inactive for billions of years. Mercury has not got any seasons contrary to other planets, such as the Earth. Because Mercury's orbit lies within Earth's orbit, it can appear in Earth's sky in the morning or in the evening, but not in the middle of the night. Although Mercury can appear as a very bright object when viewed from Earth, its proximity to the Sun makes it more difficult to see than Venus.
Composition of the atmosphere Surface pressure
trace
Molecular oxygen
242%
Sodium
29%
Hydrogen
222%
Helium
6%
Potassium
0.5%
Trace amounts of
argon,, nitrogen,,, carbon ,,dioxide, water, vapor,, xenon, krypton, and neon
Explorer:
The Babylonians
Date of discovery:
The planet known in antiquity
Distance from the Sun:
57 910 000 km
Area:
74 797 000 km ²
Weight:
328.5 E21 kg
Radius of:
2 440 km
Length of Day:
58d 15h 30m
Number of moons:
0
THE END By Team 3