北象限儀
Quadrantids of the North
來源：염범석 Yeom Beom-seok｜發表日期：2024-01-11
象限儀座流星雨以一個被遺忘的星座命名，每年都會為地球北半球的觀星者帶來一場精彩的表演。流星雨在天空中的輻射點位於古老的、在天文學上已經過時的星座 Quadrans Muralis 中。這個位置離北斗七星座不遠，有人稱它為犁座，位於現代的靴座和天龍座的交界處。事實上，北斗七星的 "柄 "星就在這幅畫面的右上角附近，流星雨的輻射體就在下方。北極星位於左上角。在這幅來自韓國長水的夜景圖中，象限儀座流星背對著輻射體，劃過夜空。這張合成圖是在 2024 年 1 月 4 日流星雨高峰前後的幾個小時內拍攝的。產生象限儀流星雨的塵埃流的可能來源在 2003 年被確認為一顆小行星。
原文：Named for a forgotten constellation, the Quadrantid Meteor Shower puts on an annual show for planet Earth's northern hemisphere skygazers. The shower's radiant on the sky lies within the old, astronomically obsolete constellation Quadrans Muralis. That location is not far from the Big Dipper asterism, known to some as the Plough, at the boundaries of the modern constellations Bootes and Draco. In fact the Big Dipper "handle" stars are near the upper right corner in this frame, with the meteor shower radiant just below. North star Polaris is toward the top left. Pointing back toward the radiant, Quadrantid meteors streak through the night in this skyscape from Jangsu, South Korea. The composite image was recorded in the hours around the shower's peak on January 4, 2024. A likely source of the dust stream that produces Quadrantid meteors was identified in 2003 as an asteroid.
※ 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。