Metal-rich
In astronomy and physical cosmology, the term "metal" or metal-rich is used to refer to any element heavier than hydrogen and helium.
Metals
Astronomers refer to all the chemical elements heavier than hydrogen and helium as 'metals', even though this includes elements such as carbon and oxygen which are not considered metals in the normal sense.
Metallicity
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Metal-poor
In Astronomy, it is common to speak of the chemical makeup of substances in terms of Hydrogen, Helium, and Metals, i.e. elements heavier than Helium.
Metallah
"triangle", "head of the triangle"
Other Names
Mothallah; Atria; Caput Trianguli; Ras al Muthallah; Elmuthalleth.
Alpha Trianguli
HR 544
HD 11443 ...
On getting metallicity of distant galaxies from optical spectroscopy: it's a much tougher thing than getting the metallicity of a star. For a star, you solve for temperature, gravity, and chemical abundances.
Metallicity
Wikipedia, the free encyclopedia - Cite This Source
In astronomy and physical cosmology, the metallicity of an object is the proportion of its matter made up of chemical elements other than hydrogen and helium.
Metals
Perhaps one of the least obvious but most significant contributions from the Moon to life on Earth has been the gift of workable metal deposits at the surface of the planet.
METAL - Element that readily forms cations and has metallic bonds; sometimes said to be similar to a cation in a cloud of electrons.
Metal-line systems have been reviewed in several chapters of QSO Absorption Lines: Probing the Universe, and are considered important enough to have driven one of the few initial Key Projects for HST.
Metallicity
Red giants such as Betelgeuse are not actually that red in colour. If you look at the colour in table 4.3 above you can see that its actual colour would be more orange than true red. A small group of stars do, however, appear deep red.
Metal Heart is a 1985 release by German heavy metal music band Accept.Although the group had recorded before at Dierks-Studios, this was the first album produced by Dieter Dierks himself....
metal
Used by astrophysicists to refer to all elements except hydrogen and helium, as in: "the universe is composed of hydrogen, helium and traces of metals".
Metals
IN astronomical usage, all atoms heavier than helium.
Meteor ...
Metal
(a) To an astronomer, a metal is any element heavier than hydrogen and helium; thus, not only are iron and copper metals, but so are elements like oxygen and neon.
(b) As used in stellar spectroscopy, any element heavier than helium.
Metallic Hydrogen - A form of hydrogen in which the atoms have been forced into a lattice structure typical of metals.
Metal Oxide Semiconductor -- A construction used to fabricate microelectronic components. including CCDs, which consists of three layers, namely a metal conductor.
HEAVY-METAL STAR
A heavy-metal star is an unusual type of giant star. Heavy-metal stars include barium (Ba II) stars (a type of late giant star) and S stars (a type of red giant).
Metallah (Alpha Tri)
Messier Objects
M33 The Triangulum Galaxy (spiral galaxy) ...
Metallic iron mixed with iron-silicates and magnesium-silicates
17 percent
0.10 -0.22 (Relatively bright) ...
metal - (n.)
(a) For stellar abundances, any element higher in atomic number than 2, that is, heavier than helium, (b) For a planet or solid, matter that is a good conductor of heat and electricity.
meteor - (n.) ...
Metal foils were hung out (like a flag) to receive the solar wind. They were then returned to Earth where the composition of the ions caught in them was analyzed.
Metal
A term used by astronomers to describe all elements except hydrogen and helium, as in "the universe is composed of hydrogen, helium and traces of metals".
A metallic element mostly obtained by reduction from cinnabar, one of its ores. It is a heavy, opaque, glistening liquid (commonly called quicksilver), and is used in barometers, thermometers, ect. Specific gravity 13.6. Symbol Hg (Hydrargyrum).
This metal-rich system is also the title member of the two-billion-year-old, HR 1614 stellar moving group (Feltzing and Holmberg, 2000; Olin Jeuck Eggen, 1998 and 1992; Graeme H. Smith, 1983; and Eggen, 1978).
Small metal L-brackets, about 3/4 inch or 3 cm on a side, are used: one to support the fulcrum, another as a "keeper" to steady the thin end of the chopstick.
Rock or metal
Size
Most meteorites are tiny, smaller than grains of sand, and vaporize as they pass through the earth's atmosphere.
Asteroid Metallic, rocky objects without atmospheres that orbit the Sun, but are too small to be called planets. A group of these objects make up the asteroid belt between Mars and Jupiter.
When the metallicity is very low, however, a recent study of the faintest stars found that the minimum star size seems to be about 8.3% of the solar mass, or about 87 times the mass of Jupiter.
HD191760 is a metal-rich star, meaning the system contains lots of complex molecules critical to planet-formation. So could there be any other orbiting bodies?
alkali metal (NASA Thesaurus / NASA SP-7, 1965) A metal in group IA of the periodic system; namely, lithium, sodium, potassium, rubidium, cesium, and francium.
Run two long metal bands through slots cut in the base plate and around telescope tube. Tighten those bands to keep guidescope assembly firmly against scope's tube.
The three-inch metal model of the USS Enterprise ...pulled in by the planet killer The in lucite encased three-inch metal model In the pre-production stage of season two, Jefferies designed a prop that he referred to as the "Enterprise working prop.
Above the core lies the main bulk of the planet in the form of liquid metallic hydrogen.
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249. Metal Hydrogen
A form of hydrogen under high pressure that is a good electrical conductor.
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250. Metals
In astronomical usage, all atoms heavier than helium.
metals what astronomers call all of the elements heavier than helium (like carbon, nitrogen, oxygen, sodium, aluminum, chlorine, calcium, iron, etc.).
One day an iron-metallic meteor about 50 meters across fell from the sky, burning much brighter than the Sun, at a speed faster than 40,000 kilometers per hour (KPH).
Lines of neutral metals predominate. Hydrogen very weak, molecular bands start to appear.
Arcturus, Aldebaran
M ...
Meteorite: A metallic or stony (silicate) body that has fallen on Earth (or other planetary body) from outer space. Most meteorites come from asteroids, but a small number come from the Moon or Mars (see SNC meteorites).
2. In the Galaxy, metal-rich ("metals" are elements heavier than Helium) stars are found
only in the galactic center
in the disk and spiral arms
in the globular clusters
in equal numbers throughout the galaxy ...
SILICON
A non-metallic chemical element.
SOLAR ECLIPSE
A shadow which falls on an area of Earth when the Moon moves between the Sun and Earth.
Imagine a piece of metal placed in a hot furnace. At first, the metal becomes warm, although its visual appearance doesn't change. As it heats up, it begins to glow dull red, then orange, brilliant yellow, and finally white. How do we explain this?
The term refractory metals denotes metals with a very high melting point, but it is used somewhat arbitrarily in the metals industry.
Asteroids are rocky-metallic objects which range in size from about the size of pebbles to around 600 miles (~1,000 km) across. Although they orbit the Sun, they are too small to be considered planets.
patina: Coloured, metallic compounds (usually oxides and sulphides) which form on metal surfaces left exposed to the atmosphere.
While the star's metal content is close to solar, the velocity relative to the Sun is high, the two stars moving past each other at 90 kilometers per second, five times normal.
In the higher chromosphere on occasions metallic gases are carried up to such a level that without an eclipse a bright line spectrum of many elements may be seen, but it is always possible to see those of hydrogen and helium, ...
The Moon is a spherical, rocky body, possibly with a small metal core, orbiting the Earth in a slightly eccentric orbit at a mean distance of near 400,000 kilometres.
It includes Iridium, Osmium, Platinum and Plladium, which are found in the metal-rich interiors of chemically segregated asteroids and planets; consequently, these elements are extremely rare on Earth's surface.
As you know, metals heat up fast and transmit heat fast. This is because they have lots of electrons that can move easily about within the metal. This is the same reason that the conduct electricity well.
The first communications satellite was Echo 1; launched in 1960, it was a large metallized balloon that reflected radio signals striking it.
The intense magnetic field of Jupiter is thought to result from electrical currents in this region of metallic hydrogen that is spinning rapidly and thought to compose 75% of the planet's mass.
of energy from the deuteron-hydrogen nucleus reaction ends, contraction begins anew, and the temperature of the star increases again until it reaches a point at which a nuclear reaction can occur between hydrogen and lithium and other light metals ...
Surrounding this, with a diameter of about 100,000 km, is a metallic mixture of hydrogen and helium.
A special metal-coated piece of plastic, typically aluminized Mylar. Double-sided coatings greatly reduce the possibility of filter defects. Metal coated glass is also available. Sources for these filters include: ...
This effect is not limited to metal bars or the surface of a star. If you look very carefully at a candle flame you'll see there is a blue-white spot at its hottest point (near the wick) with a white tip slightly above it, then a series of yellow, ...
The interconnect metal plates are replaced with a thin ceramic layer eliminating approximately 70 percent of weight from the cell.
The rocky ones are the first four, which are much smaller and denser than the outer four, containing a much higher percentage of metal elements, and less gases (Mercury and Mars do not in fact have any atmosphere to speak of).
Jupiter is so massive that H2 probably becomes metallic at . Jupiter is also warm enough so that He should be miscible in the liquid metallic hydrogen. Because Saturn is less massive than Jupiter, the transition to metallic hydrogen may occur at r 0.
In the middle of the 19th century, the technology to cast large metal coated glass mirrors did not exist and Lord Rosse was forced to use "speculum" metal instead.
 See also: Light, Earth, Time, Sun, Solar
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