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.

In the case of Venus, there are on average two transits every one and a quarter centuries. A transit of Venus occurs only if the planet is in inferior conjunction with the Sun (between Earth and Sun) and is also crossing the through Earth's orbital plane (the Ecliptic).

2024年4月12日 · The Transit of Venus is a rare astronomical event in which the planet Venus passes directly between the Earth and the Sun, appearing as a small black dot

2012年6月2日 · A rare skywatching event will occur on June 5, 2012, when Venus crosses in front of the sun. Here are some frequently asked questions about the so-called transit of Venus.

A transit of Venus across the Sun happens when the planet Venus goes between the Sun and Earth. It is a syzygy and a partial occultation of the Sun. When a transit happens, Venus can be seen as a small black dot going across the Sun. Transits of Venus usually take several hours.

2012年5月30日 · Venus orbits the Sun faster and in a smaller orbit, and it comes to these inferior conjunctions every 584 Earth days. If Venus and Earth orbited the Sun in the same plane, we'd enjoy a transit of Venus every 584 days, and the June 5th transit wouldn't be such a big deal.

A Venus transit is a phenomenon in which the disk of the planet Venus passes like a small shadow across the face of the Sun. The transit can be seen (with proper protection!) by the unaided eye and looks something like a moving sunspot.

Imagine two different people, one on each pole of the Earth, viewing the transit of Venus. The person on the North pole sees Venus following one path across the Sun. The person on the South pole sees Venus follow a slightly higher path, one that's shifted a little to the north.

What is the Transit of Venus? Planet Venus, courtesy of NASA. There have been fifty-two transits of Venus across the face of the Sun since 2000 B.C., but until 1643 A.D., no human was known to have observed this astronomical rarity.

2012年6月1日 · A transit of Venus across the Sun takes place when the planet Venus passes directly between the Sun and Earth, becoming visible against (and hence obscuring a small portion of) the solar disk. During a transit, Venus can be seen from Earth as a small black disk moving across the face of the Sun.