Category:Mercury (planet) Mercury02. Astronomy. Mercury03. Mercury04. Mercury (planet) Mercury is gravitationally locked and rotates in a way that is unique in the Solar System.
As seen relative to the fixed stars, it rotates exactly three times for every two revolutions[b] it makes around its orbit.[13] As seen from the Sun, in a frame of reference that rotates with the orbital motion, it appears to rotate only once every two Mercurian years. An observer on Mercury would therefore see only one day every two years. Because Mercury's orbit lies within Earth's orbit (as does Venus's), it can appear in Earth's sky in the morning or the evening, but not in the middle of the night. Also, like Venus and the Moon, it displays a complete range of phases as it moves around its orbit relative to Earth.
Although Mercury can appear as a very bright object when viewed from Earth, its proximity to the Sun makes it more difficult to see than Venus. Internal structure Internal structure of Mercury: 1. Mercury's density can be used to infer details of its inner structure. Surface geology. Mercury05. Kids - Our Universe - Mercury. Mercury is the first planet from the Sun.
It is not very easy to observe since it is always close to the Sun in the sky. Even when best placed, it is close to the horizon and only visible for a few hours after sunset or before sunrise. Named after the winged messenger of the gods, the planet speeds around the Sun once every 88 days. However, it spins on its axis very slowly – once every 58.6 days. This is exactly two thirds of its orbital period. Mercury is a small, rocky world. Mercury is very like the Moon. Mercury is surprisingly dense. So far, less than half of the surface has been imaged at close range by the Mariner 10 spacecraft. Mercury - Planets for Kids! Mercury from space Mercury is the closest planet to our Sun.
At some parts of its orbit, Mercury is only about 46 million kilometers away from the sun. Because Mercury is so close to the sun, it is very hot there. It is so hot that all the carbon dioxide and oxygen has boiled away, and Mercury has very little air. On Mercury, it's so hot that even some metals like tin melt into liquids, as if they were water.
Venus and Mercury at dawn - Mercury is the one higher up Mercury is a small planet. Because Mercury is so close to the Sun, it doesn't take very long to go around the Sun. Solar System. Mercury is the smallest planet apart of pluto. Fun Mercury Facts for Kids - Cool Information About This Small Planet. Mercury - The Planet Mercury - Mercury For Kids - Facts. We have lots of information about the planet Mercury below that will help you with homework/project work and help you understand more about the planet.Mercury is the planet closest to the Sun.
It is not, however, very close, since it is 36 million miles, or 58 million kilometres away from the Sun! The distances of planets from each other and from the Sun are often measured in Astronomical Units, AU. One AU is the average distance between the Earth and the Sun, 93 million miles, or 150 million kilometres. Using this system of measurement, Mercury is 0.39 AU from the Sun. Like all the other planets Mercury orbits round the Sun, but its orbit of the Sun lasts for only 88 days. Because Mercury goes round the Sun so quickly, the planet was called after the messenger of the Roman Gods. When Mercury orbits the Sun, it travels 36 million miles, or 58 million kilometres in the 88 days of the orbit. Figure 1. Mercury’s sunny side has a temperature rising to 400° Celsius or 750° Fahrenheit. Facts about mercuery Andrew. Mercery 01.