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Solar eclipses on Jupiter occur when any of the natural satellites of Jupiter pass in front of the Sun as seen from the planet Jupiter. For bodies which appear smaller in angular diameter than the Sun, the proper term would be a transit. For bodies which are larger than the apparent size of the Sun, the proper term would be an occultation. When the four largest satellites of Jupiter, the Galilean satellites, occult the Sun, a shadow transit can be seen on the surface of Jupiter which can be observed from Earth in telescopes.

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  • Éclipse solaire sur Jupiter
  • Solar eclipses on Jupiter
  • 木星日食
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  • 木星日食是在木星表面观测到的日食,当木星的卫星从木星前方经过时可能产生。从木星表面观测时,角直径小于太阳的天体,则能产生凌日现象。 若在木星表面观测,则有五颗木星的卫星能完全遮蔽太阳,分别是木卫五、木卫一、木卫二、木卫三和木卫四。其他卫星由于自身太小或距离木星太远而无法完全遮蔽太阳,只能形成凌日。那些距离木星非常远的卫星,由于它们的轨道倾角通常很大,因此凌日亦鲜有发生。 当木星最大的四颗卫星,即所谓的伽利略衛星形成木星日食时,可以在地球上用天文望远镜在木星表面观测到一个影子。 由于木星体积非常大,且轉軸傾角(于其卫星轨道面倾角相关)较小,木星日食并不罕见。 17世纪,乔凡尼·多美尼科·卡西尼和奧勒·羅默通过观测木星日食测定木星卫星的公转周期。观测发现公转周期的理论计算值与观测值差值发生有规律的变化,最多相差十分钟。羅默将这一差异解释为“光速是有限的”,由木星和地球在各自公转轨道上的位置不同,每次观测时二者之间的距离也不同导致。 诸多航天器也曾对木星日食进行过观测,包括先驱者10号、先驱者11号(曾于1973年和1974年两次观测)、旅行者1号、旅行者2号、伽利略号探测器、卡西尼-惠更斯号以及新视野号。
  • Solar eclipses on Jupiter occur when any of the natural satellites of Jupiter pass in front of the Sun as seen from the planet Jupiter. For bodies which appear smaller in angular diameter than the Sun, the proper term would be a transit. For bodies which are larger than the apparent size of the Sun, the proper term would be an occultation. When the four largest satellites of Jupiter, the Galilean satellites, occult the Sun, a shadow transit can be seen on the surface of Jupiter which can be observed from Earth in telescopes.
  • Une éclipse solaire sur Jupiter se produit lorsque l'un des satellites de cette planète éclipse le Soleil, vu depuis la surface. Cinq satellites ont un diamètre apparent suffisamment grands pour être capables d'occulter entièrement le Soleil : Amalthée, Callisto, Europe, Ganymède et Io. Les autres satellites de la géante gazeuse ont un diamètre apparent inférieur à celui du Soleil, conduisant à une éclipse partielle ou à un simple transit.Les éclipses solaires ne sont pas particulièrement rares sur Jupiter, celle-ci étant très grande et peu inclinée sur son axe (les satellites principaux de Jupiter sont à peu près situés dans le plan équatorial de la planète). De fait, quasiment toutes les révolutions des cinq satellites cités plus haut conduisent à une éclipse solaire visible depuis un po
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  • A Triple Eclipse on Jupiter
  • Io's Shadow
  • Jupiter Triple-Moon Conjunction
  • Jupiter, Io and Ganymede's Shadow
  • Jupiter, Io and Shadow
  • Pastel Planet, Triple Eclipse
  • Shadows Across Jupiter
  • When Moons and Shadows Dance
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  • Solar eclipses on Jupiter occur when any of the natural satellites of Jupiter pass in front of the Sun as seen from the planet Jupiter. For bodies which appear smaller in angular diameter than the Sun, the proper term would be a transit. For bodies which are larger than the apparent size of the Sun, the proper term would be an occultation. There are five satellites capable of completely occulting the Sun: Amalthea, Io, Europa, Ganymede and Callisto. All of the others are too small or too distant to be able to completely occult the Sun, so can only transit the Sun. Most of the more distant satellites also have orbits that are strongly inclined to the plane of Jupiter's orbit, and would rarely be seen to transit. When the four largest satellites of Jupiter, the Galilean satellites, occult the Sun, a shadow transit can be seen on the surface of Jupiter which can be observed from Earth in telescopes. Eclipses of the Sun from Jupiter are not particularly rare, since Jupiter is very large and its axial tilt (which is related to the plane of the orbits of its satellites) is relatively small—indeed, the vast majority of the orbits of all five of the objects capable of occulting the Sun will result in a solar occultation visible from somewhere on Jupiter. The related phenomenon of satellite eclipses in the shadow of Jupiter has been observed since the time of Giovanni Cassini and Ole Rømer in the mid Seventeenth Century. It was soon noticed that predicted times differed from observed times in a regular way, varying from up to ten minutes early to up to ten minutes late. Rømer used these errors to make the first accurate determination of the speed of light, correctly realizing that the variations were caused by the varying distance between Earth and Jupiter as the two planets moved in their orbits around the Sun. Spacecraft can be used to observe the solar eclipses on Jupiter; these include Pioneer 10 and Pioneer 11 (1973 and 1974), Voyager 1 and Voyager 2 (1979), Galileo orbiter (1995–2003), Cassini–Huygens (2000) and New Horizons (2007) observed the transits of their moons and its shadows.
  • Une éclipse solaire sur Jupiter se produit lorsque l'un des satellites de cette planète éclipse le Soleil, vu depuis la surface. Cinq satellites ont un diamètre apparent suffisamment grands pour être capables d'occulter entièrement le Soleil : Amalthée, Callisto, Europe, Ganymède et Io. Les autres satellites de la géante gazeuse ont un diamètre apparent inférieur à celui du Soleil, conduisant à une éclipse partielle ou à un simple transit.Les éclipses solaires ne sont pas particulièrement rares sur Jupiter, celle-ci étant très grande et peu inclinée sur son axe (les satellites principaux de Jupiter sont à peu près situés dans le plan équatorial de la planète). De fait, quasiment toutes les révolutions des cinq satellites cités plus haut conduisent à une éclipse solaire visible depuis un point de la surface de Jupiter (à la différence de la Lune et de la Terre, par exemple). Les ombres projetées par les quatre satellites galiléens peuvent être observées depuis la Terre dans un télescope.
  • 木星日食是在木星表面观测到的日食,当木星的卫星从木星前方经过时可能产生。从木星表面观测时,角直径小于太阳的天体,则能产生凌日现象。 若在木星表面观测,则有五颗木星的卫星能完全遮蔽太阳,分别是木卫五、木卫一、木卫二、木卫三和木卫四。其他卫星由于自身太小或距离木星太远而无法完全遮蔽太阳,只能形成凌日。那些距离木星非常远的卫星,由于它们的轨道倾角通常很大,因此凌日亦鲜有发生。 当木星最大的四颗卫星,即所谓的伽利略衛星形成木星日食时,可以在地球上用天文望远镜在木星表面观测到一个影子。 由于木星体积非常大,且轉軸傾角(于其卫星轨道面倾角相关)较小,木星日食并不罕见。 17世纪,乔凡尼·多美尼科·卡西尼和奧勒·羅默通过观测木星日食测定木星卫星的公转周期。观测发现公转周期的理论计算值与观测值差值发生有规律的变化,最多相差十分钟。羅默将这一差异解释为“光速是有限的”,由木星和地球在各自公转轨道上的位置不同,每次观测时二者之间的距离也不同导致。 诸多航天器也曾对木星日食进行过观测,包括先驱者10号、先驱者11号(曾于1973年和1974年两次观测)、旅行者1号、旅行者2号、伽利略号探测器、卡西尼-惠更斯号以及新视野号。
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