Hóe-chheⁿ
(對 Mars 轉來)
軌道性質 | |||||||||||||||||
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原其 J2000 | |||||||||||||||||
壓helion |
249200000 km (154800000 mi; 1.666 AU) | ||||||||||||||||
近日點 |
206700000 km (128400000 mi; 1.382 AU) | ||||||||||||||||
227939200 km (141634900 mi; 1.523679 AU) | |||||||||||||||||
離心率 | Pang-bô͘:Val | ||||||||||||||||
686.971 d (1.88082 yr; Pang-bô͘:Val sols) | |||||||||||||||||
779.96 d (2.1354 yr) | |||||||||||||||||
平均 軌道速力 |
24.007 km/s (86430 km/h; 53700 mph) | ||||||||||||||||
19.412° | |||||||||||||||||
敧平 | Pang-bô͘:Ublist | ||||||||||||||||
Pang-bô͘:Val | |||||||||||||||||
2020-Aug-03 | |||||||||||||||||
Pang-bô͘:Val | |||||||||||||||||
衛星 | 2 | ||||||||||||||||
物理sèn質 | |||||||||||||||||
平均半景 |
3389.5 ± 0.2 km (2106.1 ± 0.1 mi) | ||||||||||||||||
赤道 半景 |
3396.2 ± 0.1 km (2110.3 ± 0.1 mi; 0.533 Earths) | ||||||||||||||||
極地 半景 |
3376.2 ± 0.1 km (2097.9 ± 0.1 mi; 0.531 Earths) | ||||||||||||||||
扁平率 | Pang-bô͘:Val | ||||||||||||||||
144798500 km2 (55907000 sq mi; 0.284 Earths) | |||||||||||||||||
體積 |
Pang-bô͘:Val (0.151 Earths) | ||||||||||||||||
質量 |
Pang-bô͘:Val (0.107 Earths) | ||||||||||||||||
平均 密度 |
3.9335 g/cm3 (0.1421 lb/cu in) | ||||||||||||||||
3.72076 m/s2 (12.2072 ft/s2; 0.3794 g) | |||||||||||||||||
Pang-bô͘:Val | |||||||||||||||||
5.027 km/s (18100 km/h; 11250 mph) | |||||||||||||||||
行星 自轉週期 |
Pang-bô͘:Val 24h 37m 22.7s | ||||||||||||||||
赤道自轉 速度 |
868.22 km/h (241.17 m/s; 868.22 km/h; 539.49 mph) | ||||||||||||||||
Pang-bô͘:Val to its orbital plane | |||||||||||||||||
北極 赤經 |
Pang-bô͘:Val 21h 10m 44s | ||||||||||||||||
北極 赤緯 | Pang-bô͘:Val | ||||||||||||||||
反射率 | Pang-bô͘:Ublist | ||||||||||||||||
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−2.94多 +1.86 | |||||||||||||||||
3.5–25.1″ | |||||||||||||||||
大氣圈 | |||||||||||||||||
表面 哈勒 |
0.636 (0.4–0.87) kPa 0.00628 atm | ||||||||||||||||
體積組成 | |||||||||||||||||
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外部 連結 [修改]
- NASA's Mars fact sheet
- Nine Planets Mars page
- MarsNews。com - News and info site
- IntroductiontoMartian topography,with Hubble Space Telescope photos
- FU Berlin: HRSC (camera) experimentatMars Express (
應 。 & ger.; press releases and high resolution images) - Technical Notes about TimeonMars
- OnMars: Exploration oftheRed Planet 1958-1978 from the NASA History Office。
- TheMars Society flag
- ATrip Into Space Photos and descriptions of Mars
- Martian Law - aCATO white paper
- Mars Unearthed - Comparisons of terrains between Earth and Mars
- 3D VRML Mars globe
火星的水 [修改]
- Highly visible ice lake foundonMars - BBC
- Dr。Tony Phillips: "MakingaSplashonMars",Science@NASA article,June 29,2000。 Phillips describes the Martian "gullies" and explains the conditions under which liquid water can exist on the surface of Mars。
- BBC News storyonsubsurface ice depositsonMars
- BBC News updateonMars Express' findings of polar water ice and water-eroded featuresonthesurface
- Mars Rover Scientists Wring Water Story from Rocks This image taken by Mars Rover Opportunity shows microscopic rock forms indicating past signs of water。Courtesy: NASA
- BBC News Mars pictures reveal frozen sea
火星探險 [修改]
- ThePolitical Economy of Very Large Space Projects (Journal Of Evolution and Technology)
- exploreMarsnow Interactive Mars base simulation。 Winner of 2003 Webby Award for Science。
- NASA Mars Exploration Rover Home Page
咪 onMars Anaglyphs from the Mars Rovers (3D)
參考 資料 [修改]
- William Sheehan,ThePlanet Mars: AHistory of Observation and Discovery, The University of Arizona Press, Tucson, 1996
- Vladimir A。 Krasnopolsky,Jean-Pierre Maillard,Tobias C。 Owen, "Detection of MethaneintheMartian Atmosphere: Evidence for Life"
太陽系 |
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青: 日頭 |
惑星: 水星 | 金星 | 地球 | 火星 | 木星 | 土星 | 天王星 | 海王星 |
矮惑星: Ceres | 明王星 | Haumea | Makemake | Eris |
小物體: 小惑星 | 海王星外星體 | 長尾青 |
衛星: 月娘 | 火星的 | 木星的 | 土星的 | 天王星的 | 海王星的 |
陳: 小惑星帶 | Kuiper帶 | 散亂圓盤 | Oort雲 |
請參考天文物體,太陽系的星體列單,照半徑排猶是照質量排 |
Pún 文章 sī chi̍t phiⁿ phí-á-kiáⁿ. Lí thang tàu khok-chhiong lâi pang-chō͘ Wikipedia. |