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[6] [73] Willy Ley's 1937 short story "At the Perihelion" involves a close approach to the Sun as part of an escape from Mars, [4] [5] [74] and Charles L. Harness's 1949 novel The Paradox Men (a.k.a. Flight into Yesterday) is a space opera that climaxes with a swordfight atop a space station on the surface of the Sun. [4] [5] [75] [76] In Ray ...
Thus, the Sun occupies 0.00001% (1 part in 10 7) of the volume of a sphere with a radius the size of Earth's orbit, whereas Earth's volume is roughly 1 millionth (10 −6) that of the Sun. Jupiter, the largest planet, is 5.2 AU from the Sun and has a radius of 71,000 km (0.00047 AU; 44,000 mi), whereas the most distant planet, Neptune, is 30 AU ...
The core is the only region of the Sun that produces an appreciable amount of thermal energy through fusion; 99% of the Sun's power is generated in the innermost 24% of its radius, and almost no fusion occurs beyond 30% of the radius. The rest of the Sun is heated by this energy as it is transferred outward through many successive layers ...
The solar transition region is a region of the Sun's atmosphere between the upper chromosphere and corona. [ 1 ] [ 2 ] It is important because it is the site of several unrelated but important transitions in the physics of the solar atmosphere:
The Sangam landscape (Tamil: அகத்திணை "inner classification") is the name given to a poetic device that was characteristic of love poetry in classical Tamil Sangam literature. The core of the device was the categorisation of poems into different tiṇai s or modes, depending on the nature, location, mood and type of relationship ...
A wood carving from 1475, showing 7 celestial bodies. The 5 planets that can be seen with the naked eye, and the Sun and the Moon, each floating in a heavenly layer, the Arabic Felaq in ancient cosmology. In mythological or religious cosmology, the seven heavens refer to seven levels or divisions of the Heavens.
to drag wearily on Sun; but under their saddle-bows the Aesir have concealed, kind powers, cooling irons Chill is the name, of what stands before the sun, a shield before the shining god. mountains and oceans I know should burn, if it fell from in front. Arvak and Alsvith up shall drag Weary the weight of the sun; But an iron cool have the ...
The umbra is the darkest region of a sunspot and is where the magnetic field is strongest and approximately vertical, or normal, to the Sun's surface, or photosphere. The umbra may be surrounded completely or only partially by a brighter region known as the penumbra. [ 23 ]