Opposition
Related Category: Astronomy: General
in astronomy, alignment of two celestial bodies on opposite sides of the sky as viewed from earth. Opposition of the moon or planets is often determined in reference to the sun.
Opposition (astronomy)
Opposition is a term used in positional astronomy and astrology to indicate when one celestial body is on the opposite side of the sky when viewed from a particular place (usually the Earth).
Opposition
A Solar System body at opposition, on the opposite side of the Earth from the Sun.
opposition
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Opposition
The positioning of two celestial bodies relative to a third (usually the , , and a third celestial body) such that they are 180° apart in . Note that the bodies need not actually lie on a straight line since they may lie at different .
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But oppositions of Saturn, which come about two weeks later every year, are hardly the same each time around. After this year's opposition, Saturn will dim year by year, and in the years 2009 and 2010 will appear at its dimmest in Saturn's 29.
Definition: opposition surge: An increase in brightness as an observer approaches the line between the sun and a target. The strength of the surge is an indicator of small-scale surface texture.
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Opposition
A planet further out from the Sun than Earth is in opposition at 180 degrees from the Sun, directly on the opposite side of the Earth. A planet in opposition is at its closest to, and at its best visibility from, Earth.
Precession ...
OPPOSITION - An object is at opposition when it is on the opposite side of the Earth from the Sun. The elongation of a Solar System body at opposition is 180°.
opposition
the moment when a planet farther from the sun than Earth appears opposite the sun in the sky; it is the best time to observe a planet
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opposition: (astronomical) the occasion when two celestial bodies are opposite each other in the sky and their celestial longitudes differ by 180ΒΊ.
Opposition occurs when a planet is opposite the Sun in the Earth's sky, or to put it another way, opposition occurs when the Earth is positioned between the planet and the Sun.
Opposition is the opposite of (solar) conjunction.
Opposition
In this example opposition is the time when a celestial body is on the opposite side of the Earth to the Sun (see diagram below).
opposition: The situation of two heavenly bodies when their longitudes or right ascensions differ by 180? The moon is in opposition to the sun when the earth is directly between them. [26] ...
opposition:
Point in the sky that is opposite to the apparent position of the Sun.
Opposition When a celestial body is opposite the Sun in the sky.
Orbit The path followed by one body as it moves around another.
Opposition
(a) Occurs when the Earth comes directly between that planet and the Sun; it can thus only happen in relation to the superior planets and the asteroids.
Opposition- the position of a superior planet when exactly opposite the sun in the sky, as seen from Earth; the planet is then best placed for observation ...
Opposition -- Configuration in which one celestial body is opposite another in the sky. A planet is in opposition when it is 180 degrees away from the sun as viewed from another planet (such as Earth).
opposition
When a superior planet is directly opposite from the Sun in our sky, and is closest to the Earth.
optics
The mirrors and/or lenses used to gather and focus the light inside a telescope.
Opposition
the position of a planet when it is exactly opposite the Sun as seen from Earth. A planet at opposition is at its closest approach to the Earth and is best suitable for observing.
Opposition - The configuration of a planet or other body when it appears opposite the Sun in the sky
Orbit - The elliptical or circular path followed by a body that is bound to another body by their mutual gravitational attraction ...
Opposition to the Second Boer War in Britain was modest when the war began on 11 October 1899 and was always less widespread than support for it, let alone prevailing indifference....
The Absent-Minded Beggar
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Saturn Opposition
At age 44 one reaches Saturn Opposition when once again the need to create balance and change one's lfe comes to the fore.
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Opposition dates are approximately 6 months after conjunction, August 20 in the case of Neptune while Uranus is at opposition on September 21, about 6 hours after Jupiter.
Opposition:
A planet is in opposition when it is 180 degrees away from the sun.
Opposition
The point at which a planet appears opposite the Sun in our sky. During the Martian opposition, for example, Mars and the Sun are on opposite sides of the Earth.
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opposition: when a planet or asteroid is opposite the Sun in the sky. At such times the object is visible all night, rising at sunset and setting at sunrise.
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Opposition to Parker's hypothesis on the solar wind was strong. The paper he submitted to the Astrophysical Journal in 1958 was rejected by two reviewers.
Opposition
When a planet is exactly opposite the Sun, so that the Earth is between them.
Orbit ...
opposition - (n.)
The passage of a planet through the point most directly opposite the sun on the other side of the earth.
optical activity - (n.) ...
At opposition, when Mars is closest to us and most easily observed, we see it as full, so the Sun's light strikes the surface almost vertically, casting few shadows and preventing us from seeing any topographic detail, such as craters or mountains.
On opposition night observers will have to wait until at least 10pm before Jupiter climbs to a reasonable 25 degrees above the south-eastern horizon.
In opposition. The planetary situation on Aug. 27 was a perihelic opposition. That is, an opposition that occurs at perihelion, which is the point where Mars is closest to the Sun.
The opposition between rationalism and empiricism is, however, rarely so simple and direct, inasmuch as many thinkers have admitted both sensation and reflection.
THE OPPOSITION MUSTER
In December, 1614, a meddlesome and ambitious Dominican priest, Thomas Caccini, preached a fiery sermon in Florence denouncing Copernicanism and science in general as contrary to Christian faith.
Mars Opposition, An Introduction Includes free Mars Previewer II software download
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Kid's Cosmos Mars Opposition explained for the younger generation ...
Current opposition brightness of Eris
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Maximum brightness of Pluto's smallest moons Hydra and Nix ...
Table 2-5. Opposition, Conjunction, Perihelion, and Aphelion
Opposition
Period ...
opposition (Galileo Project Glossary - JPL) A configuration in which a celestial body is in the opposite direction (180 degrees) from the sun as seen from another body located along the line between them. (e.g.
3 A planet is in opposition when Earth is between it and the Sun. This is an outer planet's point of closest approach to Earth.
May 22 - Mars at Opposition. The red planet will be at its closest approach to Earth and its face will be fully illuminated by the Sun. This is the best time to view and photograph Mars.
The visible part of the waxing moon increases in size during the first half of the cycle until full moon appears at opposition, after which the visible part of the waning moon decreases for the remainder of the cycle.
When the Earth is at inferior conjunction with respect to an observer on a superior planet we say that planet is "in opposition" from Earth's perspective. .
78" for the long-sought constant from the opposition of Mars in 1877, and from combined heliometer observations at five observatories in 1888-1889 of the minor planets Iris, Victoria and Sappho, the apparently definitive value of 8.
-- Polar, ∨ Polaric, opposition ∨ contrast Logic, an opposition or contrast made by the existence of two opposite conceptions which are the extremes in a species, as white and black in colors; hence, ...
In opposition to the subgiant spectral class, which suggests that the star is beginning to evolve from being a core-hydrogen-fusing dwarf, ...
For example, the opposition location is like the Full Moon; a planet there would be visible high overhead at Midnight, it would rise around 6 PM and set around 6 AM.
Astronomers call these close encounters "perihelic oppositions." Perihelic means Mars is near perihelion--its closest distance to our Sun.
HST 3 Views of Mars at Opposition
These Hubble Space Telescope views provide the most detailed complete global coverage of the Red Planet ever seen from Earth.
Consciously or unconsciously, New Agers tend to redefine vocabulary borrowed from various belief systems, which can cause some confusion as well as increase opposition from skeptics and the traditional religions.
opposition), allowing all-night viewing when Mars is closest to the Earth. Successive oppositions occur at intervals of approximately 26 months.
This happens around its opposition to the Sun, which means it is 180° away from the Sun as seen from the Earth. When a planet is in opposition, you can see it rise approximately where the Sun rises, but 12 hours later.
The processes that act in opposition to gravity are various pressure forces. The pressure of the gas pushes back and resists gravitational infall. The resistive forces in a molecular cloud come from gas pressure, magnetic field, and turbulence.
Mars is best observed when it is at opposition (directly opposite the sun in earth's sky) and also at its closest distance from earth.
(a) Time between one opposition and the next, of any superior planet or asteroid. [A84]
(b) The period of revolution of one body about another with respect to the Earth. (synodic period)-1 = ± (sidereal period)-1 (Earth's period)-1. [H76] ...
' The planet is at opposition in late January, when it passes closest to Earth and shines brightest. As the year progresses, it will fade as it moves farther from Earth. It will disappear from view in the Sun's glare in December.
As the orbit of Mars is an eccentric ellipse its distance from the Earth at opposition (closest approach to the Earth) varies between 1.38 and 1.67 Astronomical Units (the mean distance of the Earth from the Sun is one Astronomical Unit).
Do you have information about the oppositions of Mars?
Is there water on Mars?
Does Mars have precipitation?
SYZYGY
Syzygy occurs when the moon (or a planet) is in opposition or conjuction with the Earth and Sun; the three bodies are positioned in a straight line. At syzygy, the moon (or planet) is seen as new or full (from Earth).
 See also: Time, Earth, Period, Year, Second
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