2024年1月13日 Circling the Sun Image Credit & Copyright: Radoslav Zboran Explanation: Earth’s orbit around the Sun is not a circle, it’s an ellipse. The point along its elliptical orbit where our fair planet is closest to the Sun is called perihelion. This year, perihelion was on Januar […]
2023年10月5日 Ring of Fire over Monument Valley Image Credit & Copyright: Tunc Tezel (TWAN) Explanation: Tracking along a narrow path, the shadow of a new moon will race across North, Central, and South America, on October 14. When viewed from the shadow path the apparent size of the lunar disk wi
2020 January 9 Perihelion to Aphelion Image Credit & Copyright: Ian Griffin (Otago Museum) Explanation: Perihelion for 2020, the point in Earth’s elliptical orbit when it is closest to the Sun, occurred on January 5th. The distance from the Sun doesn’t determine the seasons, though.
