天文学基础知识详说-(43).ppt

Credit:ESO再見「九大行星」張師良可觀自然教育中心暨天文館

Credit:KAGAYA

Credit:NASA,ESA,andA.Schaller(forSTScI)Xena(2003UB313)

Credit:JerryLodrigussCredit:AkiraFujiiDec29,2000Sept28,2000

PathofVenus2004Credit:TuncTezelEnglish“Planet”=wanderer中文「行星」日本語「惑星」

FromAndreasCellariusHarmoniaMacrocosmica,1660/61

Credit:NASA,JPLUranus天王星WilliamHerschelMarch13,1781Neptune海王星UrbainLeVerrier,JohnCouchAdams,JohannGalleSept23,1846

Credit:RyanMcDanielTitius-BodeLaw波德定律PlanetkT-BruledistanceRealdistanceMercury00.40.39Venus10.70.72Earth21.01.00Mars41.61.52(AsteroidBelt)82.82.77Jupiter165.25.20Saturn3210.09.54Uranus6419.619.2Neptune12838.830.06Pluto25677.239.44

Credit:ScottHudsonJan1,1801-Ceres谷神星Mar28,1802-Pallas智神星Sept1,1804-Juno婚神星Mar29,1807-Vesta灶神星

Credit:NASAAsteroidBelt小行星帶

LowellObservatory羅威爾天文台Credit:LowellObservatoryArchivesClydeW.Tombaugh湯博Credit:SmithsonianInstitutionPlutoDiscoveryPlate冥王星發現底片Credit:ThomasONeil

BlinkComparatorFeb18,1930PlutoDiscovered!

Radius半徑

(km)Surfacetemp表面溫度

(°C)Axisinclination自轉軸傾斜Density密度

(g/cm3)Rotationperiod自轉週期

(hour)Orbitalperiod公轉週期

(day)Satellites衛星2438-170(夜)430(日)negligible5.4358.688.006052470177°.335.24243Days224.7063712223°.445.5223.9365.313390-2325°.193.9324.6687.02

Radius半徑

(km)Surfacetemp表面溫度

(°C)Axisinclination自轉軸傾斜Density密度

(g/cm3)Rotationperiod自轉週期

(hour)Orbitalperiod公轉週期

(year)Satellites衛星71541-1533°.121.339.81118526°.730.6910.22921497°.861.2917.98422529°.61.6419.2164.8131150-236122°.462.13153.3248.53

Earth-likeplanets/Terrestrialplanets類地行星Rockyplanets固體行星Jupiter-likeplanets/Jovianplanets類木行星Giants巨星太陽Sun水星

Mercury金星Venus地球Earth火星Mars木星

Jupiter土星Saturn天王星

Uranus海王星

Neptune冥

王

星

PlutoCredit:CalvinJ.Hamilton

Credit:AddisonWesley

Credit:Dr.R.Albrecht,ESA/ESOSpaceTelescopeEuropeanCoordinatingFacility;NASACharon冥衛一(查龍)Pluto冥王星2306km1205kmJun22,1978

Credit:NASA/JPL-Caltech/T.Pyle(