标签: 折射

猎鹰9号与狩月

2022年10月14日 The Falcon and the Hunter’s Moon Image Credit & Copyright: Michael Seeley Explanation: The Full Moon of October 9th was the second Full Moon after the northern hemisphere autumnal equinox, traditionally called the Hunter’s Moon. According to lore, the name is a fitting one because this Full Moon lights the night during a time for...

卢波夫纳城堡与满月

2022年7月15日 Lubovna Full Moon Petr Horalek / Institute of Physics in Opava Explanation: On July 13 this well-planned telephoto view recorded a Full Moon rising over Lubovna Castle in eastern Slovakia. The photographer was about 3 kilometers from the castle walls and about 357,000 kilometers from this Full Moon near perigee, the closest point in its elliptical...

太阳绿闪的影片

2021年11月10日 Video of a Green Flash Video Credit & Copyright: Paolo Lazzarotti Explanation: Many think it is just a myth. Others think it is true but its cause isn’t known. Adventurers pride themselves on having seen it. It’s a green flash from the Sun. The truth is the green flash does exist and its cause is well understood. Just as the sett...

日环食的恶魔之角

2021年06月18日 Devil Horns from a Ring of Fire Image Credit & Copyright: Madhup Rathi Explanation: Atmospheric refraction flattened the solar disk and distorted its appearance in this telescopic view of an Atlantic sunrise on June 10. From Belmar, New Jersey on the US east coast, the scene was recorded at New Moon during this season’s annular solar e...

形似希腊字母Ω的东升旭日

2020年9月21日 Omega Sunrise Image Credit & Copyright: Juan Antonio Sendra Explanation: Capturing this sunrise required both luck and timing. First and foremost, precise timing was needed to capture a sailboat crossing right in front of a rising Sun. Additionally, by a lucky coincidence, the background Sun itself appears unusual — it looks like the Gr...

太阳、月亮、金星及水星的绿闪

2020 May 30 Green Flashes: Sun, Moon, Venus, Mercury Image Credit & Copyright: Marcella Giulia Pace Explanation: Follow a sunset on a clear day against a distant horizon and you might glimpse green just as the Sun disappears from view. The green flash is caused by refraction of light rays traveling to the eye over a long path through the atmosphere. Sho...