螺旋星雲深場
A Helix Nebula Deep Field
來源：George Chatzifrantzis｜發表日期：2025-07-29
螺旋星雲在看著你嗎？不，從任何生物學意義上來說都不是，但它看起來確實很像一隻眼睛。螺旋星雲之所以被命名為螺旋星雲，是因為它看起來就像是從一個螺旋的軸線上向下看。實際上，現在人們已經知道它的幾何結構複雜得令人吃驚，包括放射狀的細絲和延伸的外環。 螺旋星雲（又名 NGC 7293 ）是最明亮、最接近行星狀星雲的例子之一，它是類太陽恆星生命末期產生的氣體雲。殘餘的中央恆星核心註定會成為一顆白矮星，它在高能量的光線下閃閃發光，使先前排出的氣體發出熒光。這幅以紅、綠、藍三色拍攝，但主要由氫發出的光突出顯示的照片，是透過位於希臘的個人望遠鏡曝光 12 小時後拍攝的。 螺旋星雲內緣的特寫顯示了複雜的氣體結，其起源仍在研究中。 門戶宇宙：隨機APOD 生成器
原文：Is the Helix Nebula looking at you? No, not in any biological sense, but it does look quite like an eye. The Helix Nebula is so named because it also appears that you are looking down the axis of a helix. In actuality, it is now understood to have a surprisingly complex geometry, including radial filaments and extended outer loops. The Helix Nebula (aka NGC 7293) is one of brightest and closest examples of a planetary nebula, a gas cloud created at the end of the life of a Sun-like star. The remnant central stellar core, destined to become a white dwarf star, glows in light so energetic it causes the previously expelled gas to fluoresce. The featured picture, taken in red, green, and blue but highlighted by light emitted primarily by hydrogen was created from 12 hours of exposure through a personal telescope located in Greece. A close-up of the inner edge of the Helix Nebula shows complex gas knots the origin of which are still being researched. Portal Universe: Random APOD Generator
※ 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！
關於每日一天文圖：每日一天文圖網站是美國國家航空暨太空總署與密西根理工大學提供的服務，網站每天提供一張影像或圖片，並由天文學家撰寫扼要說明其特別之處。