恐怖 发表于 2025-3-21 18:56:49

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Little 发表于 2025-3-21 20:40:21

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Aesthete 发表于 2025-3-22 04:18:21

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medieval 发表于 2025-3-22 06:10:14

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SCORE 发表于 2025-3-22 08:54:53

Book 1986for the disk. One astronomical unit is the distance of the Earth to the Sun, to be more precise the length of half the major axis of the Earth‘s slightly elliptical orbit around the Sun, and amounts to nearly 149600000 km.

Champion 发表于 2025-3-22 13:20:03

cal units for the disk. One astronomical unit is the distance of the Earth to the Sun, to be more precise the length of half the major axis of the Earth‘s slightly elliptical orbit around the Sun, and amounts to nearly 149600000 km.978-94-010-8586-1978-94-009-4692-7

Champion 发表于 2025-3-22 19:36:17

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Soliloquy 发表于 2025-3-22 23:39:27

https://doi.org/10.1007/978-3-658-16330-3(or companions), the method is particularly effective for long periods of revolution with corresponding larger amplitudes and for large differences in brightness between the primary and secondary component.

fatty-acids 发表于 2025-3-23 03:16:48

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blight 发表于 2025-3-23 05:36:45

Untersuchung von Kontrollservern discovery of stellar aberration in 1726 by James Bradley. Intent on finding stellar parallax, which later proved to be below Bradley’s attainable accuracy, he did find the yearly aberration effect, differeing 90° in phase from parallactic displacement, with a total amplitude of 41″ (Chapter 3).
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查看完整版本: Titlebook: Dark Companions of Stars; Astrometric Commenta Peter Kamp Book 1986 D. Reidel Publishing Company 1986 Galaxy.astrometry.astronomy.earth.gra