北方象限仪
(原标题: Quadrantids of the North)
2024-01-11
浏览次数: 14
象限仪座流星雨以一个被遗忘的星座命名，为地球北半球的天文爱好者带来了一年一度的表演。流星雨在天空中的光芒位于古老的、天文学上已经过时的象方座。这个位置离北斗七星（有些人称之为犁星）不远，位于现代星座牧夫座和天龙座的交界处。北斗星的“柄”星在这张照片的右上角附近，流星雨就在下面。北极星在左上方。在韩国长寿的夜空中，象限仪座流星雨指向夜空。这张合成图像是在2024年1月4日流星雨高峰前后的几个小时内拍摄的。产生象限仪座流星的尘埃流的一个可能来源在2003年被确定为一颗小行星。
查看原文解释
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. 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.
© 염범석 Bum-Suk Yeom