年度英仙座流星雨

The Perseid meteors are an annual event many skywatchers look forward to, as they often produce lots of shooting stars to enjoy. The Perseids are debris remnants of Comet Swift-Tuttle, which takes 133 years to orbit the Sun once. The meteors often leave long “wakes” of light and color behind them as they streak through Earth’s atmosphere. They’re also known for their fireballs, which are larger explosions of light and color that can persist longer than an average meteor streak.

This photo was taken Wednesday, Aug. 11, 2021, in Spruce Knob, West Virginia.

Credit: NASA/Bill Ingalls

英仙座流星雨是许多天文观测者期待的年度活动，因为它们经常会产生许多流星供观赏。英仙座流星雨是斯威夫特-塔特尔彗星的残骸，它绕太阳一周需要133年。流星在穿越地球大气层时，往往会留下长长的光和颜色“尾迹”。它们还以火球而闻名，火球是一种更大的光和颜色爆炸，比流星痕平均持续时间更长。

这张照片于2021年8月11日星期三在西弗吉尼亚州的云杉岭（Spruce Knob）拍摄。

影像来源：NASA/Bill Ingalls