2023年9月16日 Fireball over Iceland Image Credit & Copyright: Jennifer Franklin Explanation: On September 12, from a location just south of the Arctic Circle, stones of Iceland’s modern Arctic Henge point skyward in this startling scene. Entertaining an intrepid group of aurora hunters durin […]
2023年9月15日 Venus, Moon, and the Smoking Mountain Image Credit & Copyright: Luis Miguel Meade Rodríguez Explanation: Venus has returned as a brilliant morning star. From a window seat on a flight to Mexico City, the bright celestial beacon was captured just before sunrise in this astronomical sn
2023年9月14日 NGC 7331 and Beyond Image Credit & Copyright: Ian Gorenstein Explanation: Big, beautiful spiral galaxy NGC 7331 is often touted as an analog to our own Milky Way. About 50 million light-years distant in the northern constellation Pegasus, NGC 7331 was recognized early on as a spiral
2023年9月13日 NGC 4632: Galaxy with a Hidden Polar Ring Credit: Jayanne English (U. Manitoba), Nathan Deg (Queen’s University) & WALLABY Survey, CSIRO/ASKAP, NAOJ/Subaru Telescope; Text: Jayanne English (U. Manitoba) Explanation: Galaxy NGC 4632 hides a secret from optical telescopes. It is
2023年9月12日 Galaxy Cluster Abell 370 and Beyond Image Credit: NASA, ESA, Jennifer Lotz and the HFF Team (STScI) Explanation: Some 4 billion light-years away, massive galaxy cluster Abell 370 is captured in this sharp Hubble Space Telescope snapshot. The cluster of galaxies only appears to be dominate
2023年9月11日 Beautiful Comet Nishimura Credit & Copyright: Petr Horálek / Institute of Physics in Opava Explanation: This scene would be beautiful even without the comet. By itself, the sunrise sky is an elegant deep blue on high, with faint white stars peeking through, while near the horizon is
2023年9月10日 An Annular Solar Eclipse over New Mexico Credit & Copyright: Colleen Pinski Explanation: What is this person doing? In 2012, an annular eclipse of the Sun was visible over a narrow path that crossed the northern Pacific Ocean and several western US states. In an annular solar eclipse
2023年9月9日 Comet Nishimura Grows Credit & Copyright: Peter Kennett Explanation: Comet Nishimura is growing. More precisely, the tails C/2023 P1 (Nishimura) are growing as it nears the Sun. Discovered only last month, the comet is already near naked eye brightness as it now moves inside the Earth
2023年9月8日 Star Factory Messier 17 Image Credit & Copyright: Kim Quick, Terry Hancock, and Tom Masterson (Grand Mesa Observatory) Explanation: Sculpted by stellar winds and radiation, the star factory known as Messier 17 lies some 5,500 light-years away in the nebula-rich constellation Sagittari
2023年9月7日 The Large Cloud of Magellan Image Credit & Copyright: Chris Willocks Explanation: The 16th century Portuguese navigator Ferdinand Magellan and his crew had plenty of time to study the southern sky during the first circumnavigation of planet Earth. As a result, two fuzzy cloud-like obj
