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Orbit: Earth's Extraordinary Journey is a BBC documentary series presented by Kate Humble and Helen Czerski which aired in 2012. Running for three 60 minute episodes, the series focuses on Earth's orbit around the Sun and its effect on humans, the climate, and geological features.
Ignoring the influence of other Solar System bodies, Earth's orbit, also called Earth's revolution, is an ellipse with the Earth–Sun barycenter as one focus with a current eccentricity of 0.0167. Since this value is close to zero, the center of the orbit is relatively close to the center of the Sun (relative to the size of the orbit).
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Solar longitude, commonly abbreviated as Ls, is the ecliptic longitude of the Sun, i.e. the position of the Sun on the celestial sphere along the ecliptic.It is also an effective measure of the position of the Earth (or any other Sun-orbiting body) in its orbit around the Sun, [1] usually taken as zero at the moment of the vernal equinox. [2]
The Sun is 1.4 million kilometers (4.643 light-seconds) wide, about 109 times wider than Earth, or four times the Lunar distance, and contains 99.86% of all Solar System mass. The Sun is a G-type main-sequence star that makes up about 99.86% of the mass of the Solar System. [26]
Individual episodes are intended to be broadcast in a progressive order so that, for Year One, "Breakaway" should be broadcast first, with "Black Sun" and "Earthbound" being broadcast at an early stage to present the Moon entering a new and different part of space and the Alphans encountering their first aliens.
The Sun stops expanding before it reaches the orbit of Mars, the sole survivor of the inner planets and now the only rocky planet in the entire solar system. Miraculously, humans - along with a variety of different species from Earth brought along with them - escape extinction aboard space arks , as a portion of humankind was able to escape ...
Impact is a 2009 Canadian action disaster miniseries directed by Mike Rohl, written by Michael Vickerman and distributed by Tandem Communications, starring David James Elliott, Natasha Henstridge, Benjamin Sadler, Steven Culp, James Cromwell and Florentine Lahme as the story follows a meteor shower which eventually sends the Moon on a collision course with Earth.