保护地球，探索宇宙，发现文明
2021年11月16日 Geminids from Gemini Image Credit & Copyright: Wang Jin Explanation: Where are all of these meteors coming from? In terms of direction on the sky, the pointed answer is the constellation of Gemini. That is why the major meteor shower in December is known as the Geminids — because shower meteors all appear to come from a radiant toward G...
2021年9月28日 Night of the Perseids Video Credit & Copyright: Vikas Chander & Dorje Angchuk; Music: Tea Time via PremiumBeat Explanation: Have you ever experienced a meteor shower? To help capture the wonder, a video was taken during the peak of the recent Perseid meteor shower above the Indian Astronomical Observatory in Hanle, India, high up in the ...
2021年9月24日 Perseid Outburst at Westmeath Lookout Image Credit & Copyright: Pierre Martin Explanation: This year an outburst of Perseid meteors surprised skywatchers. The reliable meteor shower’s peak was predicted for the night of August 12/13. But persistent visual observers in North America were deluged with a startling Perseid shower outburst a...
2021年8月20日 Three Perseid Nights Image Credit & Copyright: Balint Lengyel Explanation: Frames from a camera that spent three moonless nights under the stars create this composite night skyscape. They were recorded during August 11-13 while planet Earth was sweeping through the dusty trail of comet Swift-Tuttle. One long exposure, untracked for the foregr...
2021年8月19日 Bright Meteor, Starry Sky Image Credit & Copyright: Miguel Claro (TWAN, Dark Sky Alqueva) Explanation: Plowing through Earth’s atmosphere at 60 kilometers per second, this bright perseid meteor streaks along a starry Milky Way. Captured in dark Portugal skies on August 12, it moves right to left through the frame. Its colorful trail sta...
2021年8月15日 Perseid Rain Image Credit & Copyright: Luo Hongyang Explanation: Comet dust rained down on planet Earth last week, streaking through dark skies in the annual Perseid meteor shower. The featured picture is a composite of many images taken from the same location over the peak night of the Perseids. The umbrella was not needed as a shield from m...
2021年05月12日 A Meteor and the Gegenschein Image Credit: J.C. Casado, StarryEarth, EELabs, TWAN Explanation: Is the night sky darkest in the direction opposite the Sun? No. In fact, a rarely discernable faint glow known as the gegenschein (German for “counter glow”) can be seen 180 degrees around from the Sun in an extremely dark sky. The gegensche...
2020年12月17日 Gemini’s Meteors Image Credit & Copyright: Stefano Pellegrini Explanation: Taken over the course of an hour shortly after local midnight on December 13, 35 exposures were used to create this postcard from Earth. The composited night scene spans dark skies above the snowy Italian Dolomites during our fair planet’s annual Geminid m...
2020年12月13日 Geminid Meteors over Xinglong Observatory Image Credit & Copyright: Steed Yu and NightChina.net Explanation: Where do Geminid meteors come from? In terms of location on the sky, as the featured image composite beautifully demonstrates, the sand-sized bits of rock that create the streaks of the Geminids meteor shower appear to flow out from t...
Credit: NASA/JPL-Caltech 十二月的天空会发生什么？一场流星雨，一场木星和土星之间的罕见的近距离接触，还有冬至。 Credit: NASA/JPL-Caltech 12月带来了每年最可靠的流星雨之一，也是2020年最好的流星雨之一——双子座流星雨。这场流星雨从12月4日到17日非常活跃，因为地球在小行星法厄同3200轨道上留下的尘埃碎片的痕迹中穿行。这可能是一颗被烧毁的彗星。 双子座流星雨大多数年份都能产生大量的流星，但今年的流星雨更甚。因为流星雨的高峰期正好赶上新月的到来，因此天空变得更暗，没有月光来干扰较暗的流星，双子座流星雨在12月13日夜间至14日早晨达到高峰，前后几天都能看到一些流星活动。北半球整夜都可以观看，当地时间凌晨2点左右最活跃，而对于南半球的观众来说则是在午夜之后观看。...