月亮

2020年10月8日 Mare Frigoris Image Credit & Copyright: Matt Smith Explanation: Lighter than typically dark, smooth, mare the Mare Frigoris lies in the far lunar north. Also known as the Sea of Cold, it stretches across the familiar lunar nearside in this close up of the waxing gibbous Moon’s

2020年9月26日 Moon Pairs and the Synodic Month Image Credit & Copyright: Marcella Giulia Pace Explanation: Observe the Moon each night and its visible sunlit portion will gradually change. In phases progressing from New Moon to Full Moon to New Moon again, a lunar cycle or synodic month is complet

2020年9月14日 Corn Moon Rising Image Credit & Copyright: Zarcos Palma Explanation: A rising moon can be a dramatic sight. A rising Full Corn Moon was captured early this month in time-lapse with a telephoto lens from nearly 30 kilometers away — making Earth’s ascending half-degree comp

2020年8月15日 Mars at the Moon’s Edge Image Credit & Copyright: Sergio Scauso Explanation: Does the Moon ever block out Mars? Yes, the Moon occasionally moves in front of all of the Solar System’s planets. Just this past Sunday, as visible from some locations in South America, a waning

2020 June 21 Moon Occults Venus Image Credit & Copyright: Dzmitry Kananovich Explanation: It may look like Earthrise, but it’s actually Venus-set. Just after sunrise two days ago, both the Moon and Venus also rose. But then the Moon overtook Venus. In the featured image sequence centered o

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 trave

2020 May 20 Moon, Mars, Saturn, Jupiter, Milk Way Image Credit & Copyright: Mihail Minkov Explanation: It is not a coincidence that planets line up. That’s because all of the planets orbit the Sun in (nearly) a single sheet called the plane of the ecliptic. When viewed from inside that pla

2020 May 7 Analemma of the Moon Image Credit & Copyright: Gyorgy Soponyai Explanation: An analemma is that figure-8 curve you get when you mark the position of the Sun at the same time each day for one year. But the trick to imaging an analemma of the Moon is to wait bit longer. On average the