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Halley's Comet

Halley`s Comet is the most famous comet that has so far been discovered and whose orbit has been calculated. It was Sir Edmund Halley who after researching comets predicted that the comet he saw in 1682 would return in 1758. It was eventually spotted on Christmas Day by a German amateur astronomer and farmer.

Halley's Comet is a comet, a celestial body that travels in from the far reaches of the cosmos that when it gets closer to the sun begins to burn away and produce a long tail. It is composed mainly of ice and dust. It was discovered by Sir Edmund Halley.Its orbit takes 76.1 years to travel round the Sun.

The absolute magnitude of the object is 5.5 which is the brightness of the object. A higher absolute magnitude means that the object is faint whereas a very low number means it is very bright.

The closest the Comet came to its orbitting target was 1986-02-09 at which point it was 0.587 A.U. distance away.The Semi-Major Axis of the orbit is 17.94, which is the furthest point from the centre to the edge of an elliptical point.

The orbital inclination, the angle at which Halley's Comet orbits in relation to the orbital plane is 162.2 degrees. The orbital eccentricity is 0.967, it is the degree at which Halley's Comet orbits close to a circular (0) orbit as opposed to an elliptical (1) orbit.

Image of Comet Halley's Comet

Image of Comet Halley's Comet

Halley's Comet Facts

DiscovererSir Edmund Halley
Orbital Period76.1
Absolute Magnitude5.5
Perihelion Distance0.587
Semi-Major Axis17.94
Orbital Inclination162.2
Orbital Eccentricity0.967

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