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Both stars share similar physical characteristics to the Sun, [14] so they are considered solar analogs. Their stellar classification is nearly identical to that of the Sun. ζ 1 has 94% of the Sun's mass and 90% of the Sun's radius. ζ 2 is slightly larger and more luminous than ζ 1, with 96% of the Sun's mass and 98% of the Sun's radius. [6]
The principal component of the Solar System is the Sun, a G-type main-sequence star that contains 99.86% of the system's known mass and dominates it gravitationally. [37] The Sun's four largest orbiting bodies, the giant planets, account for 99% of the remaining mass, with Jupiter and Saturn together comprising more than 90%.
The solar wind affects many other systems in the Solar System; for example, variations in the Sun's own magnetic field are carried outward by the solar wind, producing geomagnetic storms in the Earth's magnetosphere. The heliospheric current sheet out to the orbit of Jupiter
Aldebaran is a red giant, meaning that it is cooler than the Sun with a surface temperature of 3,900 K, but its radius is about 45 times the Sun's, so it is over 400 times as luminous. As a giant star , it has moved off the main sequence on the Hertzsprung–Russell diagram after depleting its supply of hydrogen in the core .
Solar System is a 2024 documentary TV mini series produced by the BBC and narrated by Brian Cox. The first episode was shown on BBC Two on 7 October 2024, [1] with the remaining four episodes made available on BBC iPlayer on the same date. [2] It follows Cox's previous series Wonders of the Solar System, shown in 2010, and The Planets, shown
Most of the major bodies of the Solar System orbit the Sun in nearly the same plane. This is likely due to the way in which the Solar System formed from a protoplanetary disk. Probably the closest current representation of the disk is known as the invariable plane of the Solar System. Earth's orbit, and hence, the ecliptic, is inclined a little ...
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The Sun partially reappeared from The Cloud's steep northern slope and soon afterwards set for a second and final time on the horizon. [9] The spectacle was last reliably witnessed, and filmed, from the churchyard in 1977, [ 10 ] [ 11 ] but is no longer visible from the location because of the presence of trees.