grovel
发表于 2025-3-23 09:56:57
The Galilean Moons of Jupiter,he other planets from an unfavorable perch on our own moving planet, their movements in our sky are somewhat complicated (see Chapters 7 and 8). Consequently, the brightest of Jupiter’s moons are incomparably better for demonstrating the third Keplerian law quantitatively.
水汽
发表于 2025-3-23 16:48:57
The Speed and Color of Light,eous; thus when a smooth-surfaced body of water is exposed to a starlit sky, images of stars and sky immediately descend and are seen in the water. Even in Lucretius’s time, the stars were at the extreme of the heavens.
急性
发表于 2025-3-23 19:37:51
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抵押贷款
发表于 2025-3-24 00:44:07
Mikrobiomische Selbstwirksamkeitrdless of angular diameter, takes the same length-a sidereal day-to complete. The stars also maintain the same positions relative to each other. In the past when people assumed the Earth to be motionless, the easiest way to account for such a phenomenon was to imagine that the stars were embedded on a great rotating sphere.
逗留
发表于 2025-3-24 06:23:28
https://doi.org/10.1007/978-3-8350-9568-7enith. A change in the latitude of the observer will show up as a shift in the displacement of the diurnal paths of the stars in the field of view of the exposure. For a displacement of 2 mm on an exposure taken with a camera lens of 135-mm focal length, a north-south displacement of 100 km is needed.
发源
发表于 2025-3-24 07:02:35
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Affiliation
发表于 2025-3-24 10:50:15
https://doi.org/10.1007/978-3-642-96838-9 the sky. The looping or zigzag movement of a planet at opposition is seen to result from a combination of the planet’s orbital motion and from the parallactic shifts caused by the motion of the Earthbound viewer.
违抗
发表于 2025-3-24 15:10:35
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出价
发表于 2025-3-24 20:52:23
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diskitis
发表于 2025-3-25 02:09:52
Astronomy of the Spheres,rdless of angular diameter, takes the same length-a sidereal day-to complete. The stars also maintain the same positions relative to each other. In the past when people assumed the Earth to be motionless, the easiest way to account for such a phenomenon was to imagine that the stars were embedded on a great rotating sphere.