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2024年4月23日 · 維基百科，自由的百科全書. 關於與「 海王星 」標題相近或相同的條目頁，請見「 海王星 (消歧義) 」。 海王星 是 太陽系 八大行星中距離太陽最遠的、體積第四大的，但質量是第三大的行星。 海王星的質量約為 地球 的17.147倍。 海王星以 羅馬神話 中的 尼普頓 （Neptunus）命名，因為尼普頓是海神王，所以中文譯為海王星。 天文學的符號 （♆， Unicode 編碼U+2646），是 希臘神話 的海神 波塞頓 使用的 三叉戟 。 作爲一個 冰巨行星 ，海王星的 大氣層 以 氫 和 氦 為主，還有微量的 甲烷 。 大氣層中的甲烷是行星呈現淡藍色的一部分原因 [7] [8] ，因為 天王星 大氣中存在濃霧，所以海王星的藍色比有同樣甲烷量的天王星更為鮮豔。
Number Eight. Neptune is 30 AU from the Sun. Earth = 1 AU. A Neptunian Year. Neptune takes 165 Earth years to go around the Sun. Ice Giant. The most dense of the giant planets. 16 Moons. Named for sea gods and nymphs in Greek mythology. Rings and Arcs. Neptune has five rings and four more ring arcs, Solo Voyager.
臺灣正體. 工具. 維基百科，自由的百科全書. 涅普頓 （ 拉丁語 ： Neptūnus [nɛpˈtuːnʊs] ）是一名 羅馬 的 水神 [1] 。 對應於其 羅馬神話 承襲的 希臘神話 的 波塞頓 [2] ，在 希臘譯本 （英語：interpretatio graeca） ，涅普頓和 朱庇特 及 普路托 是兄弟，他們三個掌天界、 陰間 以及海域。 [3] 薩拉喀亞 （英語：Salacia_ (mythology)） 是涅普頓的妻子。 涅普頓是馬匹的創造者在羅馬作為 馬 神被崇拜，管理賽馬活動 [4] 。 羅馬在公元前25年曾在賽馬場附近建立他的廟。 海王星 的拉丁名是起源於他。
Atmosphere. Magnetosphere. Introduction. Dark, cold, and whipped by supersonic winds, ice giant Neptune is more than 30 times as far from the Sun as Earth. Neptune is the only planet in our solar system not visible to the naked eye. In 2011 Neptune completed its first 165-year orbit since its discovery in 1846.
Namesake. The ice giant Neptune was the first planet located through mathematical calculations. Using predictions made by Urbain Le Verrier, Johann Galle discovered the planet in 1846. The planet is named after the Roman god of the sea, as suggested by Le Verrier. Potential for Life. Neptune's environment is not conducive to life as we know it.
NEPTUNE is the world's first regional-scale underwater ocean observatory that plugs directly into the Internet. [1] NEPTUNE is the largest installation on the Ocean Networks Canada network of ocean observatories. Since December 2009, it has allowed people to "surf" the seafloor while ocean scientists run deep-water experiments from labs and ...
Neptune Facts. Average temperature: -201°C (-331°F) where atmospheric pressure equals sea level on Earth. Average distance from Sun: 4,495 million kilometers (2,793 million miles), or 30 times farther from the Sun than Earth. Diameter: 49,528 kilometers (30,775 miles), Neptune is 3.9 times wider than Earth.
4 天前 · When was Neptune discovered? How many moons does Neptune have? What gases are present in Neptune's atmosphere? Can Neptune be seen without a telescope? What is the color of Neptune? clouds in Neptune's atmosphere. Clouds in Neptune's atmosphere, photographed by Voyager 2 in August 1989. The view is from below the planet's equator, and north is up.
2019年3月28日 · March 28, 2019. • 6 min read. Neptune may seem like a serene sapphire world at first glance. But don't let its quiet azure hues fool you: The eighth planet from the sun is a wild child. Neptune...
2024年4月22日 · Structure and Surface. Neptune is encircled by six rings. Neptune, like Uranus, is an ice giant. It’s similar to a gas giant. It is made of a thick soup of water, ammonia, and methane flowing over a solid core about the size of Earth. Neptune has a thick, windy atmosphere. Time on Neptune. One day on Neptune goes by in 16 hours.
