Ecliptic Plane
This entry contributed by Ed Post
The plane of the Earth's orbit around the , ...
Ecliptic Plane Links
A beautiful picture of the moon, the Sun's corona, Saturn, Mars, and Mercury lined up in the plane of the ecliptic, from the "Astronomy Picture of the Day" Site. Enchanted Learning®
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Ecliptic plane: The plane in the solar system within which the planets (most of them) orbit the sun.
Clean the glass "ecliptic plane" and the BB "spacecraft" really well.
Turn off the motor and move Jupiter out of the way.
descending node (Space Flight Glossary - JPL) The point at which an orbit crosses the ecliptic plane going south.
They usually orbit more-or-less in the ecliptic plane in the same direction as the planets.
As the rotation axis of the Earth is not perpendicular to its orbital plane, the equatorial plane is not parallel to the ecliptic plane, but makes an angle of about 23°27' which is known as the obliquity of the ecliptic.
With this definition, Venus's retrograde spin means that the planet's north pole lies below the ecliptic plane, unlike any of the other terrestrial worlds. Venus's axial tilt"the angle between its equatorial and orbital planes"is 177.
At times thought to refer to a "central one" much as does the Arabic name of Orion, the word actually refers to the "nodes" of the lunar orbit, the points at which the Moon crosses the ecliptic plane twice a lunar month -- which makes little sense, ...
Looping high above the ecliptic plane and across the Solar System, Pioneer 11 raced toward its appointment with Saturn on 1 September 1979. Pioneer 11 flew to within 21,000 kilometers of Saturn and took the first close-up pictures of the planet.
Since the moon's orbit has an inclination of 5°9&minut; to the plane of the ecliptic, there are two nodes in the moon's orbit around the earth; the point where the moon in its orbit crosses from south of the ecliptic plane to north of it is called ...
In the ecliptic system, latitude is measured with respect to the ecliptic plane and position is measured by ecliptic latitude (elat) and ecliptic longitude (elon). Both ecliptic latitude and longitude are measured in degrees.
This condition occurs only when the Moon passes close to the ecliptic plane and is at one of its two nodes (the ascending or descending node).
On December 13, 2005, a team of astronomers (led by Lynne Allen) announced the discovery of a new planetary body between one-fifth to one half the size of Pluto, found during routine operation of the Canada-France Ecliptic Plane Survey (CFEPS) as ...
from the sun near the ecliptic plane and heading outward from the sun at 2.6 A.U./year and downstream through the heliomagnetosphere towards the tail region and interstellar space.
Solar System View from the Ecliptic Plane
This view illustrates clearly four important features of our Solar System:
How close to a plane the orbits of all planets but Pluto lie.
The large tilt of Pluto's orbit out of the ecliptic plane.
A faint glow that extends away from the Sun in the ecliptic plane of the sky, visible to the naked eye in the western sky shortly after sunset or in the eastern sky shortly before sunrise.
Unlike comets, asteroids are found relatively close to the ecliptic plane and their orbits are not as stretched out as comets' but are more circular. This is why asteroids are also called Minor Planets.
The axial tilt of the planet Uranus is very nearly 90 degrees relative to the ecliptic plane, so that labelling one pole or the other to be the "north" pole is still a matter of some dispute.
In order for an eclipse to occur, the Moon must be in the ecliptic plane AND exactly at the new or full phase.
The ecliptic plane is the plane defined by the Earth's orbit around the Sun. All of the planets except Pluto orbit very near the ecliptic plane, so you will usually find all of them in zodiacal constellations.
the angle between a planet's orbit and the ecliptic plane; or the angle between a satellite's orbit and its host planet's rotational plane
inferior conjunction
the configuration of an inferior planet when it lies between the sun and Earth ...
This process also served to scatter the objects out of the ecliptic plane, explaining the cloud's spherical distribution.
If the moon lies in the ecliptic plane between the sun and the Earth, a solar eclipse occurs (either full, partial or annular, depending on the relative distances).
Of an orbit, the angle of the plane of the orbit with respect to the ecliptic plane.
index of refraction - (n.)
ratio of the speed of light in a vacuum to its speed in a given medium.
These comets move around the Sun in the same direction as the planets, and are found in orbits that are tipped only modestly with respect to the ecliptic plane.
5 degree tilt of the Earth's rotational axis to the Earth's orbital plane about the Sun (the ecliptic plane) causes Earth's two hemispheres to be exposed to different intensities of sunlight for different amounts of time throughout the year.
The angle between the vectors normal to the body's orbit plane and the specified reference plane. Typical reference planes are the ecliptic plane and the equatorial plane (referred to a specific epoch).
Nodes - The points in the orbit of the Moon where the Moon crosses the ecliptic plane
Normal Spiral Galaxy - A galaxy in which the spiral arms emerge from the nucleus ...
Therefore the Moon spends most of its time above or below the ecliptic plane. The Sun must be at a precise location too.
With no more planet fly-bys in its plan, Voyager 2 begins its trip out of the Solar System, traveling below the ecliptic plane ...
The ecliptic is the plane defined by the Earth's orbit around the Sun; conversely, in the course of a year, the sun traces a path in the sky along the ecliptic. Most of the planets in our appear close to the ecliptic plane from Earth.
Most of the objects orbiting the Sun move along or close to an imaginary flat surface. This imaginary surface is called the ecliptic plane. Many planets also have moons. These moons orbit around them.
These 2 great circles intersect at 2 points. As the planet travels around its orbit, at one of the intersection points it will pass from below the ecliptic plane to above it (i.e. northward). This point is called the ascending node.
Astronomical Clock or Prague Orloj is a medieval astronomical clock located in Prague, the capital of the Czech Republic, at ....
at Prague, use an astrolabe-style display, adopting a stereographic projection (see below) of the ecliptic plane.
Celestial sources near the ecliptic plane such as Sco X-1 transited the instrument scan plane twice a year. Only real-time data were received from the satellite after the last tape recorder failure on 27 June 1968.
Asteroids located near the top or bottom of the diagram occupy relatively eccentric or inclined orbits (or both), while those shown near the ecliptic plane move in relatively circular, noninclined orbits ...
This high-resolution image was taken at a distance of 369,000 km (229,000 mi). Note that south pole is toward the left, since it rotates about equator, approximately perpendicular to the ecliptic plane.
a circle - for a star on the ecliptic pole; for a star on the ecliptic plane the ellipse degenerates into a straight line.) [H76] ...
When the Moon's orbital line of nodes (the points at which the Moon crosses the ecliptic plane) coincides with the Earth-Sun direction and the Moon is near a node, a solar or lunar eclipse can occur.
 See also: Ecliptic, Earth, Sun, Orbit, Solar
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