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原文:
Carinae may be about to explode. But no one knows when – it may be next year, it may be one million years from now. Eta Carinae’s mass – about 100 times greater than our Sun – makes it an excellent candidate for a full blown supernova. Historical records do show that about 150 years ago Eta Carinae underwent an unusual outburst that made it one of the brightest stars in the southern sky. Eta Carinae, in the Keyhole Nebula, is the only star currently thought to emit natural LASER light. This featured image, taken in 1996, brought out new details in the unusual nebula that surrounds this rogue star. Now clearly visible are two distinct lobes, a hot central region, and strange radial streaks. The lobes are filled with lanes of gas and dust which absorb the blue and ultraviolet light emitted near the center. The streaks remain unexplained. Free APOD Lectures: Editor to Speak in January in Philadelphia and New York City
中文翻譯:
📢 【重磅消息】Eta Carinae即將爆炸？雖然冇人知道確切時間——可能係明年，或者一百萬年後。Eta Carinae的質量約是我們太陽的100倍，佢係一個絕佳的超新星候選者。歷史記錄顯示，約150年前，Eta Carinae經歷了一次不尋常的爆發，令佢成為南天最明亮的星星之一。Etac Carinae位於鑰匙孔星雲，系唯一被認為會發出自然激光光的恆星。
📷 呢幅攝於1996年的圖片顯示了圍繞呢顆叛逆星星的星雲新細節。現在可以清楚看到兩個明顯的葉狀結構、一個熱的中央區域，以及一些奇怪的放射狀條紋。葉狀結構充滿了氣體和灰塵的通道，吸收了發射於中央附近的藍光和紫外線光。至於這些條紋，目前仍無解釋。
📅 自由APOD講座：編輯將於1月在費城和紐約市演講。
#EtaCarinae #超新星 #星雲 #宇宙奇觀 #天文學 #激光光 #星際探索 #天文圖片 #宇宙之美
來源:NASA每日圖片
