Elongation
Related Category: Astronomy: General
in astronomy, the angular distance between two points in the sky as measured from a third point.
Elongation
The elongation is the angular separation between the Sun and a planet or other Solar System body as observed from the Earth. Elongations are measured in degrees eastward or westward of the Sun.
Elongation
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ELONGATION, strictly "lengthening"; in astronomy, the apparent angular distance of a heavenly body from its centre of motion, as seen from the earth; ...
Elongation
This diagram shows the elongations (or angle) of the Earth's position from the Sun.
Elongation is an astronomical term that refers to the angle between the Sun and a planet, as viewed from Earth.
elongation
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Elongation
The elongation of a celestial body its the angular separation from the body about which it orbits (usually the ). has a maximum elongation of 47°, and of 28°.
, , , , ...
elongation (of the moon): the angle of the moon relative to the sun, as viewed from an observer on the Earth. The term may also be applied to the planets. An elongation of 180° implies a full moon.
elongation
the apparent angular separation of an object from the sun
emission ...
Elongation The angular separation of two bodies. The greatest elongation of Mercury and Venus occur when the planets are at their most angular distance from the Sun, as viewed from the Earth.
Elongation The angular distance between the Sun and any other solar system body, or between a satellite and its parent planet.
Elongation. Angular distance of a celestial object from the sun in the sky. In standard ephemerides, this is usually denoted by the Greek letter epsilon (or by the abbreviation "Elong.").
Elongation- the angular distance of a planet from the sun or a satellite from its primary planet ...
elongation
The measure of the angular distance between the Sun and the inferior planets in our sky. Maximum elongation is the time of greatest separation and is a prime viewing period for the inferior planets.
Elongation. The angular distance between the Sun and a planet, or between a planet and a satellite, as seen from Earth.
Emersion. A term used to describe when an object re-emerges after an occultation or eclipse.
Elongation, Planetary
(a) The geocentric angle between a planet and the Sun, measured in the plane of the planet, Earth and Sun. Planetary elongations are measured from 0° to 180°, east or west of the Sun.
(b) The angle planet-Earth-Sun.
Solar elongation: The angle between the lines of sight to the Sun and to the celestial body in question.
Elongation is measured as the (angular) distance between the planet's position and the Sun's position but the Sun's position is really caused by the Earth's position. And the Sun's apparent motion is really caused by the Earth's motion.
ELONGATION
Elongation is the angle between a planet (or moon or other object) and the Sun as seen from the Earth.
(a) Elongation of a planet when it makes a 90° angle with the Sun as seen from Earth.
(b) A configuration in which two celestial bodies have apparent longitudes (see Longitude, Celestial) that differ by 90° as viewed from a third body.
Greatest Elongation - The position of Mercury or Venus when it has the greatest angular distance from the Sun ...
Greatest Elongation
This refers to the position of an inner planet (Mercury or Venus) when it is at maximum angular separation from the Sun as viewed from Earth i.e. how far from the Sun Mercury or Venus appears in our sky (see diagram 1).
tidal bulge Elongation of the Earth caused by the difference between gravitational force on the side nearest the Moon and the force on the side farthest from the Moon. The long axis of the tidal bulge points toward the Moon.
elongation (AS&T Dictionary) The state of being elongated or lengthened; the process of growing or increasing in length; the percentage of extension produced in a tensile test; ...
Venus at greatest elongation, 47° west of the Sun.
January 10
Mercury at greatest elongation 23° west of the Sun.
greatest elongation (NASA SP-7, 1965) The maximum angular distance of a body of the solar system from the sun, as observed from the earth. The direction of the body east or west of the sun is usually specified, as greatest elongation west.
an orbit; the closer the eccentricity is to zero, the more circular the orbit ecliptic the path the Sun takes against the background stars; the apparent positions of the Moon and the planets are usually quite close to the ecliptic elongation ...
If it is west of the Sun as far as it can get (from our perspective), it is at maximum western elongation, while being east of the Sun puts it at maximum eastern elongation.
au/cosmos/E/Elongation.
ORBITAL ELEMENTS - Quantities used to describe exactly where planet is in its orbit and how the orbit is oriented.
Theta, which consists of Theta-1 on top, Theta-2 on the bottom (note the elongation of the image), sits between Aldebaran and Gamma.
Mercury is more often easily visible from Earth's Southern Hemisphere than from its Northern Hemisphere; this is because its maximum possible elongations west of the Sun always occur when it is early autumn in the Southern Hemisphere, ...
While Mercury, the other inferior planet, reaches a maximum elongation of only 28¬ƒ and is often difficult to discern in twilight, Venus is hard to miss when it is at its brightest.
Initially estimated at 95 kilometres in diameter and with a mild elliptical shape, ground images now appear to suggest a larger diameter of 134 kilometres and a much more pronounced elongation.
Because its orbit lies inside that of the Earth, Venus appears to move out from the Sun to a maximum distance, called greatest elongation, and then back towards the Sun.
The Solar Elongation for Mars is the angle between the lines of sight from Earth to the Sun and from Earth to Mars. When these lines of sight form a right triangle then Mars is at quadrature (eastern or western).
Greatest Elongation refers to the largest separation of the planet from the Sun in our sky, either to the East, or to the West.
At maximum elongation it is only 28 degrees from the Sun as seen from Earth. Because of this, it can only be viewed during daylight hours or just prior to sunrise or after sunset.
The elongation is caused by a small amount of ordered circular motion in the otherwise random motion of the cluster stars.
Elliptical galaxies are elliptical in shape and are divided into eight subgroups: E0-E7 depending on their elongation. E0 ellipticals are nearly circular, while E7s are highly elongated.
3. What is the maximum elongation of Earth, as seen from Mars? (For simplicity, assume circular orbits for both planets.) HINT ...
Eccentricity -- Number between 0 and 1, gauging the elongation of elliptic orbit. The eccentricity e of the orbital ellipse is one of the "orbital elements" characterizing it.
Eccentric anomaly See anomaly.
The orbit of the planet Neptune compared to that of Pluto. Note the elongation of Pluto's orbit in relation to Neptune's (eccentricity), as well as its large angle to the ecliptic (inclination).
elongation (astronomy)
epicycle (astronomy)
equant (astronomy)
geocentric system (astronomy)
heliocentric system (astronomy)
interplanetary dust particle (IDP) (astronomy)
interplanetary exploration
interplanetary medium (astronomy) ...
1.12 When the Moon is full, it is also...
in transit.
at greatest western elongation.
at inferior conjunction.
at opposition.
They form a family of flavoproteins that regulate germination, elongation, photoperiodism, and other responses in higher plants....
, which is especially important for light entrainment to control the plants circadian rhythm ...
aspect
The apparent position of any of the planets or the Moon relative to the Sun, as seen from Earth. The four main aspects are conjunction, greatest elongation, opposition, and quadrature.
Related category
- CELESTIAL MECHANICS ...
Second, Mercury exhibits phases much like the Moon: when it lies nearly between the Earth and the Sun ( inferior conjunction), it appears as a thin crescent; when it is at its greatest separation (or elongation) from the Sun, ...
In astronomy, he discovered Titan (Saturn's largest moon) and was the first to correctly identify the observed elongation of Saturn as the presence of Saturn's rings. Show me a picture of Christian Huygens ! ...
to mechanics, stating that in a collision between bodies, neither loses nor gains ``motion'' (his term for momentum). In astronomy, he discovered Titan (Saturn's largest moon) and was the first to correctly identify the observed elongation of Saturn ...
 See also: Earth, Sun, Planet, Orbit, Moon
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