Javascript must be enabled to use all features of this site and to avoid misfunctions
Venus vs. Pluto - Comparison of sizes
HOME
Select category:
Planets
Select category
NEW

Advertising

Cancel

Search in
Close

Venus vs Pluto - Comparison

Venus
Pluto
Change

Venus

Venus

Diameter (km)12104
Distance to sun (km)108200000
Equator (km)38025
Temperature437/497

Venus is the second planet from sunlight. It is named after the Roman goddess of love and beauty. As the thing in the night sky after the Moon, Venus may be, on occasion, visible to the naked eye in broad daylight and can cast shadows. Venus lies within Earth's orbit, and never appears to venture either setting in the west just after dusk or rising in the east a bit before sunrise. Venus orbits the Sun every 224.7 Earth days. Having a rotation period of 243 Earth days, it takes longer to rotate about its axis than any other planet in the Solar System and does so in the opposite direction to all but Uranus (meaning that the Sun rises in the west and sets in the east). Venus does not have any moons, a distinction it shares only with Mercury among planets in the Solar System.Venus is a terrestrial planet and is sometimes called Earth's"sister planet" because of their similar size, mass, proximity to the Sun, and bulk composition. It is different from Earth in different respects. It's the atmosphere of the four planets, consisting of over 96% carbon dioxide. The atmospheric pressure at the planet's surface is 92 times that of Earth, or roughly the pressure found 900 m (3,000 feet ) underwater on Earth. Venus is by far the hottest planet in the Solar System, with a mean surface temperature of 735 K (462 °C; 863 °F), even though Mercury is closer to the Sun. Venus is shrouded by an opaque layer of reflective clouds of sulfuric acid, preventing its surface from being seen from space in light.



It might have had water oceans before, as the temperature rose because of a runaway greenhouse effect but these could have vaporized. The water has photodissociated, and the hydrogen that is free has been swept into space by the solar wind due to the lack of a planetary magnetic field. Venus's surface is a sterile desertscape interspersed with slab-like rocks and is periodically resurfaced by volcanism. Venus has been a significant fixture in human civilization for as long as records have existed. It has been made sacred to gods of many cultures, and has been a inspiration for writers and poets as the morning star and evening star. Venus was the first planet to have its motions plotted across the sky, as early as the second millennium BC.As the planet with the nearest approach to Earth, Venus has been a prime target for early interplanetary exploration. It was the first planet beyond Earth visited by a spacecraft (Mariner 2 in 1962), and also the first to be successfully landed on (by Venera 7 in 1970). The thick clouds of venus render observation of its surface impossible in visible light, and the detailed maps did not emerge before the Magellan orbiter's coming in 1991. Plans have been proposed for more complex missions or rovers, but the hostile surface conditions of Venus hinder them. In January 2020, astronomers reported evidence that suggests that Venus is volcanically active.

Source: Wikipedia
Change
Pluto

Pluto

Diameter (km)2368
Distance to sun (km)5945900000
Temperature-240

Pluto (minor planet designation: 134340 Pluto) is an icy dwarf planet in the Kuiper belt, a ring of bodies beyond the orbit of Neptune. It was the first and the largest Kuiper belt object to be discovered. Pluto was discovered by Clyde Tombaugh in 1930 and declared to be the ninth planet from the Sun. After 1992, its status as a planet was questioned following the discovery of several objects of similar size in the Kuiper belt. In 2005, Eris, a dwarf planet in the scattered disc which is 27% more massive than Pluto, was discovered. This led the International Astronomical Union (IAU) to define the term "planet" formally in 2006, during their 26th General Assembly. That definition excluded Pluto and reclassified it as a dwarf planet. It is the ninth-largest and tenth-most-massive known object directly orbiting the Sun. It is the largest known trans-Neptunian object by volume but is less massive than Eris. Like other Kuiper belt objects, Pluto is primarily made of ice and rock and is relatively small—one-sixth the mass of the Moon and one-third its volume. It has a moderately eccentric and inclined orbit during which it ranges from 30 to 49 astronomical units or AU (4.



4–7.4 billion km) from the Sun. This means that Pluto periodically comes closer to the Sun than Neptune, but a stable orbital resonance with Neptune prevents them from colliding. Light from the Sun takes 5.5 hours to reach Pluto at its average distance (39.5 AU). Pluto has five known moons: Charon (the largest, with a diameter just over half that of Pluto), Styx, Nix, Kerberos, and Hydra. Pluto and Charon are sometimes considered a binary system because the barycenter of their orbits does not lie within either body. The New Horizons spacecraft performed a flyby of Pluto on July 14, 2015, becoming the first ever, and to date only, spacecraft to do so. During its brief flyby, New Horizons made detailed measurements and observations of Pluto and its moons. In September 2016, astronomers announced that the reddish-brown cap of the north pole of Charon is composed of tholins, organic macromolecules that may be ingredients for the emergence of life, and produced from methane, nitrogen and other gases released from the atmosphere of Pluto and transferred 19,000 km (12,000 mi) to the orbiting moon.

Source: Wikipedia

More intresting stuff