面紗星雲遠古超新星的蛛絲馬跡
Veil Nebula: Wisps of an Ancient Supernova
來源：Abdullah Alharbi｜發表日期：2025-06-02
像這樣的星雲是銀河系一顆恆星的全部遺蹟。 大約 7000 年前，這顆恆星以超新星的形式爆炸，留下了面紗星雲。 當時，膨脹的星雲可能像新月一樣明亮，生活在有文字記載的歷史黎明期的人們可以在數週內看到它。 如今，由此產生的超新星殘留物，也被稱為天鵝座環，已經逐漸消失，現在只能透過指向天鵝座（Cygnus）的小型望遠鏡才能看到。 然而，剩下的面紗星雲在物理上是巨大的，儘管它位於大約 1400 光年的距離之外，但它的面積卻是滿月的五倍多。 這張照片是 2024 年中期在科威特拍攝的，照片中氫發出的光為紅色，氧發出的光為藍色。 在這樣完整的面紗星雲的深層圖片中，即使是好學的讀者也可能無法辨認出標誌性的細絲。 拼湊起來每日天文拼圖
原文：Wisps like this are all that remain visible of a Milky Way star. About 7,000 years ago that star exploded in a supernova, leaving the Veil Nebula. At the time, the expanding cloud was likely as bright as a crescent Moon, remaining visible for weeks to people living at the dawn of recorded history. Today, the resulting supernova remnant, also known as the Cygnus Loop, has faded and is now visible only through a small telescope directed toward the constellation of the Swan (Cygnus). The remaining Veil Nebula is physically huge, however, and even though it lies about 1,400 light-years distant, it covers over five times the size of the full Moon. The featured picture was taken in Kuwait in mid-2024 and features light emitted by hydrogen in red and oxygen in blue. In deep images of the complete Veil Nebula like this, even studious readers might not be able to identify the iconic filaments. Piece it All Together: Astronomy Puzzle of the Day
※ 本文由萌芽機器人自動轉貼自每日一天文圖（Astronomy Picture of the Day，APOD），原文為英文，正體中文是透過 DeepL 翻譯及 OpenCC 進行自動處理，內容僅供參考，若有任何錯誤之處還請見諒！
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