Transit of Venus - Wikipedia
网页A transit of Venus takes place when Venus passes directly between the Sun and the Earth (or any other superior planet), becoming visible against (and hence obscuring a small portion of) the solar disk. During a transit, Venus is visible as a small black circle moving across the face of the Sun. Transits of Venus reoccur periodically.
Venus Transit Across the Sun (2014) - NASA Science
网页2017年11月30日 · On June 5, 2012, SDO collected images of the rarest predictable solar event—the transit of Venus across the face of the Sun. This event lasted approximately six hours and happens in pairs eight years apart, which are separated from each other by 105 or 121 years. The last transit was in 2004 and the next will not happen until 2117.
Venus crossed the sun's face 10 years ago. It happens again in …
网页2022年6月6日 · A chorus of vocal awe erupted across the crowd of skywatchers, culminating in cheers of excitement as Venus' night-side began its rapid ingress onto the disk of the sun — a process that took...
Venus Crosses the Sun for Last Time until 2117
网页2012年6月6日 · The transit of Venus across the sun is one of the rarest celestial sights visible from Earth, one that wowed scientists and amateur observers around the world Tuesday (June 5). The event,...
NASA - Catalog of Transits of Venus - NASA Eclipse Web Site
网页A transit is the passage of a planet across the Sun's bright disk. At this time, the planet can be seen as a small black disk slowly moving in front of the Sun. The orbits of Mercury and Venus lie inside Earth's orbit, so they are the only planets which can pass between Earth and Sun to produce a transit.
Venus Transit Path - NASA
网页2012年6月8日 · Sequence of images from Solar Dynamic Observatory (SDO) in 171 wavelength of the Venus transit, merged together to show path of Venus across the Sun. Credit: NASA/SDO National Aeronautics and Space Administration
Transit of Venus FAQ: Everything You Need to Know | Space
网页2012年6月2日 · When Venus crosses in front of the sun, astronomers refer to this as a "transit." As the planet moves along its orbital path, it will travel across the solar disk, making it appear to...
Transits of Venus : Introduction
网页The Transit of Venus is a rare astronomical phenomenon in which the planet Venus passes across the face of the Sun. First observed by two English astronomers in 1639, it occurred only four more times before the current pair in 2004 and 2012.
Your Viewing Guide to the Transit of Venus - Sky & Telescope
网页2012年5月29日 · A transit of Venus is a naked-eye event, meaning people with normal vision can see Venus's disk in front of the Sun without using binoculars or telescopes. (Learn how to safely view the transit.)
Scientists Study Atmosphere of Venus through Transit Images
网页2015年7月9日 · As Venus passes across the face of the Sun — which emits light in almost every wavelength of the electromagnetic spectrum — scientists get a rare chance to see how all different types of light filter through Venus’ atmosphere. A layer in the upper atmosphere around Venus–called the thermosphere–absorbs certain high-energy wavelengths of light.