Mercury
Related Category: Astronomy: General
in astronomy, nearest planet to the sun, at a mean distance of 36 million mi (58 million km); its period of revolution is 88 days.
Mercury, the closest planet to the Sun
Mercury is the innermost planet in our solar system. Because of its small size - a diameter of 3030 miles - it is not the easiest of planets to observe.
Mercury
A mosaic of images of Mercury taken by the Mariner 10 mission. Image courtesy NASA/JPL-Caltech Mercury is the closest planet to the Sun. With a diameter of 4880 km, it is the second smallest.
Mercury (planet)
Mercury is the innermost planet in our solar system, orbiting the Sun once every 88 days. It ranges in brightness from about âˆ'2.0 to 5.
Mercury
The first planet from the Sun in the solar system. Mercury orbits the Sun at an average distance of 0.4 AU. The planet has a mass 0.055 times the mass of Earth and a radius 0.4 times the radius of Earth.
Mercury
Mercury is the closest planet to the Sun with an average distance to the Sun of 5.79 × 107 km or 0.39 AU. It is an inferior planet in that its orbit is smaller than the Earths.
Mercury
The Winged Messenger
Mercury is the closest planet to the Sun and the eighth largest. Mercury is slightly smaller in diameter than the moons Ganymede and Titan but more than twice as massive.
Mercury means:
In astronomy mythology,Mercury was the Roman version of the god Hermes. He was the messenger for the other gods, and for this reason Mercury is often depicted in pictures with winged sandals.
Mercury is the planet closest to the Sun and therefore its position in the sky is close to the Sun's, too. For that reason, it is hard to spot by eye unless its separation in the sky from the Sun ("elongation") is near maximum.
Mercury in Western Astrology
Mercury is the ruler of both Gemini and Virgo.
Mercury: The Mind, Transportation and Communication ...
Mercury, by the numbers
Mass 3.303e+23 Kilograms
Mass (Earth = 1) 5.5271e-02
Equatorial radius 2,439.7 Kilometers
Equatorial radius (Earth = 1) 3.8252e-01
Mean density (gm/cm^3) 5.42
Mean distance from the Sun (km) 57,910,000 ...
Mercury is a heavily cratered planet; its surface is similar to the surface of our . Cratering on Mercury triggered volcanic eruptions that filled much of the surrounding area.
Mercury
The closest planet to the Sun.
Prior to 1965, astronomers believed that Mercury's sidereal rotation matched its orbital period of 88 days (synchronous rotation). This belief was reinforced by the chance coincidence of six 58.
Mercury is so close to the Sun that astronomers thought that there would probably be orbital coupling, like the Earth-Moon system (a tidally locked system).
Mercury Map Images
Mercury Photo/Animation Gallery
Mercury was named by the Romans after the fleet-footed messenger of the gods because it seemed to move more quickly than any other planet.
Mercury, the first rock from the Sun(blatant rip-off). What do astronomers really know about a planet that is so distant from our own? A whole lot, actually.
Mercury, a planet that's often lost in the glare of the Sun, tantalizes sky watchers this December. That's because Mercury swings to the eastern edge of its orbit as seen from Earth, staying out in the evening sky for an elongated amount of time.
Mercury has no satellites.
Mercury is made of iron.
What is it like on Mercury?
Dry and extremely hot during the day, freezing at night.
The surface is full of craters.
Mercury is the smallest non-controversial planet in the solar system (Pluto is not considered by most astronomers to be a planet). Therefore, it has very weak gravity. It also has nearly no atmosphere.
Mercury
Mean Distance from the Sun
0.39 AU (57.91 million km / 35.35 million miles) ...
From Mercury, the Sun appears two and a half times larger than it does on Earth. The sky would appear black because there's little atmospheric scattering of light.
Project Mercury:
Initiated in 1958, completed in 1963, Project Mercury was the United States' first man-in-space program. The objectives of the program, which made six manned flights from 1961 to 1963, were specific: ...
Definition: Mercury: Closest planet to the sun. Named for the Roman god of trade a profit.
Space Tragedies9 Planets in Nine DaysAstronomy 101
Related Articles ...
- plus a rubric.
MERCURY WEB LINKS/REFERENCES
Mercury from the
from the Jet Propulsion Lab.
Mercury at the web site " " ...
MERCURY, THE WINGED MESSENGER
Mercury was known to the Romans as the messenger to the gods.
It is the closest planet to the sun and hurtles round our star every 88 days. It is the second smallest planet, after Pluto.
Mercury Its heavily-cratered globe is only about 3,000 miles in diameter, making Mercury the second smallest planet in the Solar System, after Pluto. Mercury has no natural satellite.
Mercury: Planet Closest to the Sun
Guess what?
Due to Mercury's rotation and highly elliptical orbit, the Sun appears to rise briefly, set, and rise again before it travels westward across the sky.
Mercury (planet)
Wikipedia, the free encyclopedia - Cite This Source ...
Does Mercury have an atmosphere?
Scientists had always thought that Mercury was too small and too hot to hold onto any kind of atmosphere.
Mercury has played an important role in the development and testing of theories of the nature of gravity because its elliptical, ...
Mercury's over-sized iron core had led to theories of its formation that attempt to explain this; for instance, a collision with another protoplanet early in its life could have stripped away much of Mercury's mantle, ...
Mercury, the innermost planet, is 0.4 A.U. from the Sun on the average. It revolves about the Sun once every 88 days in an orbit that is the most elliptical of any planet except Pluto.
Mercury is not a good place for a vacation. Searing hot in the day, and frigid cold at night, any future human outposts on Mercury would likely be bathed in eternal twilight.
Mercury Close Up
The small, bright halo (center) is 10 km (6 mi) in diameter. The prominent crater further left, which has a central peak, is 30 km (19 mi) across. The darker, lightly cratered area (upper left) may be an ancient lava flow.
Mercury(Hermes):fleet footed messenger of the gods.
Venus(Aphrodite):goddess of beauty.
Mars(Ares):fiery red god of war.
The Mercury capsule was small. It only held one person. The capsule had very little room inside. The astronaut had to stay in his seat.
MERCURY
Viewed from Earth, Mercury never strays far from the Sun: the angular distance between the Sun and Mercury is never greater than 28°.
MERCURY in August 2011
The chart shows the path of Mercury in Leo up to the 15th of August 2011. The view is in a direction about half way between west and northwest.
MERCURY
MERCURY, in the solar system, the planet closest to the sun.
Mercury
Courtesy JPL/NASA.
Mercury has a thin layer of atmosphere, which is mainly made up of sodium and a little helium. The atmospheric pressure is almost zero.
Mercury lacks an atmosphere to speak of. Even though most of its surface is very hot, there is strong evidence that water ice exists in locations near its north and south poles which are kept permanently-shaded by crater walls.
MERCURY Hg Z = 80
This element was known in antiquity. In Latin it was called hydragyrum (liquid silver).
Ionization energies
HgI 10.4 eV, HgII 18.8 eV, HgIII 34.2 eV.
Mercury , also called quicksilver or hydrargyrum , is a chemical element with the symbol Hg and atomic number 80. A heavy, silvery d-block metal, mercury is one of six elements that are liquid at or near room temperature and pressure..
Mercury
(a) A transition metal that is liquid at room temperatures (bromine is the only other element with this property). The vapor is very poisonous.
Sun, Mercury, Venus, Earth, Moon, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto, Quaoar, Asteroids, Comets, Sedna ...
Mercury: Because the day is exactly two years long (due to orbital resonance), the method of plotting the sun's position at the same time each day would only yield a single point.
Mercury is a little bigger than the Moon and Venus is about the size of the Earth but they are much (MUCH!) farther away from us so neither of them can actually eclipse the Sun.
Mercury is a bit surprising because it has a weak magnetic field. Mercury is the smallest of the terrestrial planets, so its interior should have cooled off long ago. Also, Mercury spins slowly---once every 58.8 days.
Mercury, Venus, Mars, Jupiter, and Saturn have been known for a very long time...but no one knows when they were first seen. Being such bright objects in the sky, they have been known and observed by ancient civilizations.
Mercury, which is a little larger than Earth's Moon, gives a sense of scale as it passes in front of our massive Sun.
Resources regarding scale, organization and motion of the planets and bodies in the solar system.
Mercury
The closest planet to the Sun. The temperature range on Mercury's surface is the most extreme in the solar system, ranging from about 400° C (750° F) during the day to about -200° C (-300° F) at night.
MERCURY - Astronomy
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Mercury: The closest planet to the sun.
Meteorites: Small pieces of rock that enter our atmosphere and gradually disintegrate, before reaching the ground.
MERCURY
Mercury is the planet closest to the sun. It a small, dense, rocky planet with almost no atmosphere.
MERIDIAN
The meridian is an imaginary north-south line in the sky that passes through the observer's zenith.
Mercury, Venus, Earth, and Mars.
theories - (n.)
Detailed explanations of the behavior of matter based on experiments; may be revised if new data warrant.
Near Mercury
The U.S. Mariner 10 probe transmits the first image of Mercury.
1975 A.D.
Mercury and Venus are the first two planets from the Sun and are the most similar to Earth.
IMAGES
The eight planets of the solar system and Pluto, in a montage of images scaled to show the …[Credit: NASA/Lunar and Planetary Laboratory] ...
[12.3] MERCURY, ZINC-AIR, & SILVER OXIDE BUTTON CELLS
[12.4] LEAD-ACID, EDISON, NICAD, & NIMH CELLS
[12.5] LITHIUM TECHNOLOGY ...
The inner planets, Mercury, Venus, Earth and Mars, can be (very) roughly split into 2 sub-groups.
May 9 - Transit of Mercury Across the Sun. The planet Mercury will move directly between the Earth and the Sun.
 See also: Earth, Planet, Sun, Solar, Orbit
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