faultfinder 发表于 2025-3-23 10:32:06

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inflate 发表于 2025-3-23 16:46:28

Fourth Rock from the Sun neatly between that of the Earth and the Moon, making it the Solar System’s seventh smallest planet. Its surface area of 144,798,500 km² – some 28% of the Earth’s surface area – is roughly equivalent to the area of dry land on the Earth.

盲信者 发表于 2025-3-23 20:55:47

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DOTE 发表于 2025-3-23 23:31:53

Stuff and Substancether elements that compose igneous rock. To determine the interior composition of Mars scientists require information on several parameters; these include the planet’s total mass, its size, the moment of inertia and core mass; the latter has not yet been scientifically established. We do know that M

Nebulizer 发表于 2025-3-24 04:21:32

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客观 发表于 2025-3-24 09:46:21

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Osteoporosis 发表于 2025-3-24 11:01:29

A Topographic Survey of Mars° wide longitudinal sections, progressing west from the Martian prime meridian. These regions are the Acidalia-Marineris-Argyre Region (0–90°), the Arcadia-Tharsis-Sirenum Region (90–180°W), the Utopia-Elysium-Cimmeria Region (180–270°W) and the Vastitas-Sabaea-Hellas Region (270–360°W). The polar a

简略 发表于 2025-3-24 17:15:24

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臭了生气 发表于 2025-3-24 21:52:36

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SCORE 发表于 2025-3-25 02:18:17

Recording Marshick layer of atmosphere – 99% of it lies in a layer just 31 km thick. The lower Mars appears in the sky, the more atmosphere its light must travel through to reach the observer’s keen eye, its light diminishing and levels of turbulence generally increasing nearer the horizon.
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查看完整版本: Titlebook: Mars and How to Observe It; Peter Grego Book 2012 Springer Science+Business Media New York 2012 Amateur astronomy.Imaging Mars.Observing M