天文学基础知识详说 (32).ppt

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1、MoonCredit:NASACredit:Watanabe TsuyoshiCredit:JPL/NASASatellite 衛星 EarthCredit:Robert GendlerMoon Moon 月球月球月球月球Radius Radius 半徑半徑Mass Mass 質量質量Gravitational force Gravitational force 重力重力Surface Temp.Surface Temp.表面溫度表面溫度Rotational period Rotational period 自轉週期自轉週期1738 km(1/4 of the 1738 km(1/4 of t

2、he Earths)Earths)1/81 of the Earths1/81 of the Earths1/6 of the Earths1/6 of the Earthsfrom 130from 130 to -110 to -110 27.3 days27.3 daysCredit:JHU/NASA384 000 kmCredit:Calvin J.Hamilton月殼 Crust月幔 Mantle月核 Core 月海 Maria/SeaCredit:JPL/NASA環形山/隕石坑CratersCredit:NASACraters 隕石坑Credit:NASACredit:NASACre

3、dit:NASA近地遠地Moons Ellipse Orbit 月球橢圓軌道Credit:NMM London遠地 Apogee近地 PerigeeCredit:Antonio CidadaoCredit:Galileo Project,NASAPerigee MoonApogee Moon朔朔新月滿月望望上弦下弦殘月娥眉月凸月凹月Sunlight太陽光太陽光Credit:NMM London月相月相 PhaseCredit:WFI Team,ESP,MPI-A,OACA waning crescent moon 殘月Credit:Antonio CidadaoLunation 朔望月Cred

4、it:Lick Observatory Rotational Period(self-rotating)Rotational Period(self-rotating)=Orbital Period(rotates around the Earth)=Orbital Period(rotates around the Earth)=27.3 days=27.3 daysFar side of the MoonCredit:NASATides 潮汐TidesCredit:F.Espenak日食 Solar Eclipse月食 Lunar EclipseThe moons orbit tips b

5、y about 5 to the earths orbit.Umbra 本影Penumbra 半影Total Lunar Eclipse 月全食Partial Lunar Eclipse 月偏食Credit:Anthony Ayiomamitis日食 Solar EclipseCredit:CENS日全食 Total Solar Eclipse日偏食 Partial Solar EclipseCredit:Murray AlexanderCourtesy Hong Kong Space Museum,Photograph by Chee-kuen Yip.Credit:NASACredit:Calvin J.HamiltonCredit:NASACredit:NASACredit:NASA