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  • Christmas Sky Show -- presented by Science@NASA

    聖誕天空秀 -- -- 由[email protected]主辦

  • Just when you thought Christmas was over....

    就在你以為聖誕節已經結束的時候......。

  • At the end of the day on Dec. 25th,

    在12月25日的一天結束時。

  • a pair of holiday lights will pop out of the deepening twilight.

    越來越深的暮色中會蹦出一對節日的燈。

  • Jupiter and the Moon are having a Christmas conjunction.

    木星和月球正在進行聖誕聯歡。

  • It's a global apparition,

    這是一個全球性的幽靈。

  • visible from all time zones and both sides of the equator.

    在所有時區和赤道兩側都能看到。

  • Everyone can see the show,

    每個人都可以看到這個節目。

  • even city dwellers who often miss astronomical events

    漏網之魚

  • because of light pollution.

    因為光汙染。

  • Separated by less than 2 degrees,

    相隔不到2度。

  • the bright pair will beam right through city lights.

    這對明亮的光束將直接穿過城市燈光。

  • For anyone who gets a telescope for Christmas,

    對於任何一個聖誕節得到望遠鏡的人來說。

  • the timing is perfect.

    天時地利人和。

  • Jupiter and the Moon

    木星與月球

  • are among the most satisfying targets for backyard optics.

    是後院光學最滿意的目標之一。

  • A quick sweep of the telescope from Jupiter to the Moon and back again

    從木星到月球,再從月球到木星,用望遠鏡快速掃視。

  • will reveal Jupiter's storms and cloud belts,

    將揭示木星'的風暴和雲帶。

  • the Moon's mountains and impact craters,

    月球的山脈和撞擊坑。

  • and of course the four Galilean satellites

    當然還有四顆伽利略衛星

  • circling the giant planet like a miniature solar system.

    像一個微型太陽系一樣環繞著這顆巨大的行星。

  • Jupiter's trademark Great Red Spot

    木星大紅斑

  • will also be on display--

    也將在展會上展示 --

  • and it is worth a look.

    並且值得一看。

  • Astronomers recently announced that the enormous swirling storm,

    天文學家近日宣佈,巨大的漩渦風暴。

  • twice as wide as the planet Earth,

    是地球寬度的兩倍。

  • is 'spinning up.'

    是'旋轉起來.&#39。

  • Actually, explains planetary scientist Glenn Orton

    其實,行星科學家格倫-奧頓解釋說:

  • of NASA's Jet Propulsion Laboratory,

    的NASA'噴氣推進實驗室。

  • 'the Red Spot is shrinking.'

    '紅斑正在縮小.&#39。

  • He likens it to 'the iconic picture of a figure skater

    他把它比作'花樣滑冰運動員的標誌性照片。

  • pulling her arms in to spin faster.

    拉著她的手臂轉得更快。

  • As the size contracts, the spin rate increases.'

    隨著尺寸的收縮,自旋率增加.&#39。

  • John Rogers, head of the British Astronomical Association's Jupiter Section,

    英國天文學協會'木星分會負責人約翰-羅傑斯。

  • noticed the phenomenon in recent pictures of Jupiter

    在最近的木星照片中注意到這一現象。

  • snapped by amateur astronomers.

    被業餘天文學家拍下。

  • He was able to track a black cloud

    他能追蹤到一片黑雲

  • as it swirled three times around the Red Spot's central vortex.

    因為它圍繞著紅斑'的中心漩渦旋轉了三次。

  • The circulating streak completed the circuit in only 4.0 days,

    流傳的連環畫只用了4.0天就完成了巡迴演出。

  • shorter than the 4.5 days Rogers measured in 2006

    比羅傑斯2006年測得的4.5天還短。

  • using the same method.

    用同樣的方法。

  • Looking back in time,

    回望過去的時光。

  • 'the trend of decreasing rotation period has been consistent

    '輪換週期遞減的趨勢是一致的。

  • at least since Voyager visited Jupiter in 1979,' says Rogers.

    至少自1979年旅行者號訪問木星以來,'羅傑斯說。

  • As the spot shrinks,

    隨著現貨的縮小。

  • it also changes shape.

    它也會改變形狀。

  • Decades ago the Red Spot looked like a sausage -

    幾十年前的紅斑看起來就像一根香腸------。

  • now it's more circular.

    現在更是循環往復。

  • What happens next is hard to say.

    接下來會發生什麼就很難說了。

  • 'Perhaps the Red Spot will continue to shrink and eventually disappear,'

    '也許紅斑會繼續縮小,最終消失,&#39。

  • speculates Rogers.

    猜測羅傑斯。

  • 'Or perhaps it will be rejuvenated if some new storm arises to reinforce it.'

    '或者說,如果出現一些新的風暴來加強它,也許它會重新煥發活力.&#39。

  • One thing is certain,

    有一件事是肯定的。

  • Christmas night is a good time to look.

    聖誕夜是個看的好時機。

  • The Red Spot will be transiting Jupiter's middle for observers across North America

    紅斑將穿越木星中部,為北美各地的觀測者提供服務。

  • and will be perfectly positioned for telescopic observations.

    並將完美地定位在望遠鏡觀測上。

  • But you don't need a telescope to enjoy the show.

    但你不需要望遠鏡就能欣賞到這場表演。

  • Step outside at sunset on Dec. 25th and look east.

    12月25日日落時分,走出家門,向東望去。

  • After all, Christmas isn't really over until you've seen the holiday lights.

    畢竟,聖誕節並沒有真正結束,直到你'看過節日的燈光。

  • For more news about bright lights in the night sky,

    更多關於夜空中亮光的新聞。

  • visit science.nasa.gov

    訪問science.nasa.gov

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