蓋婭重建了銀河系的側面檢視
Gaia Reconstructs a Side View of our Galaxy

發表日期:2025-05-12
從側面看我們的銀河系是什麼樣子?因為我們在裡面,所以人類無法獲得真實的圖片。不過,最近,我們利用歐空局蓋亞任務(Gaia mission)提供的十億多顆恆星的位置資料,繪製了這樣一幅地圖。結果顯示,就像其他許多螺旋星系一樣,我們的銀河系也有一個非常薄的中心圓盤。我們的太陽和我們在夜晚看到的所有恆星都在這個圓盤中。雖然之前也有過假設,但更令人驚訝的是,這個圓盤的外緣看起來是彎曲的。銀河系彎曲中央帶的顏色主要來自於暗色塵埃、明亮的藍色恆星和紅色發射星雲。雖然資料分析仍在進行中,但蓋亞號在成功完成任務後已於今年 3 月停用。 探索你的宇宙隨機 APOD 生成器
原文:What does our Milky Way Galaxy look like from the side? Because we are on the inside, humanity can’t get an actual picture. Recently, however, just such a map has been made using location data for over a billion stars from ESA’s Gaia mission. The resulting featured illustration shows that just like many other spiral galaxies, our Milky Way has a very thin central disk. Our Sun and all the stars we see at night are in this disk. Although hypothesized before, perhaps more surprising is that the disk appears curved at the outer edges. The colors of our Galaxy's warped central band derive mostly from dark dust, bright blue stars, and red emission nebulas. Although data analysis is ongoing, Gaia was deactivated in March after a successful mission. Explore Your 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。