THE SUN HAS SET

The Earth takes 23 hours 56 minutes exactly to turn fully around its axis, which passes through the poles, in west-east direction and in the opposite direction of clockwise. This is called rotation. In addition, this move gives us the feeling that the sky is swirling around our planet.The translational motion is an important movement of the earth, by which our planet moves around the Sun, driven by gravitation, in a time of 365 days, 5 hours and 57 minutes, which is the actual length of the year.The axis of rotation of the Earth is always pointing to an inclined direction. So when in its orbit around the Sun's north pole points toward the Sun, the northern hemisphere receives more heat, while in the Southern hemisphere we get some cold. Below you'll find a fun and short video that explains everything you need on the subject, I hope you like it. _________________ La Tierra tarda 23 h 56 minutos exactamente en dar una vuelta completa alrededor de su propio eje, que pasa ...

On February 11, NASA launched the most advanced space ship in order to study more closely the Sun. The SDO (Solar Dynamics Observatory) has sent to Earth the first images that reveal unseen details that will help scientists to better understand the dynamics and solar activity. Stunning images I would like you to see. Enjoy! __________________  El pasado 11 de febrero, la NASA lanzó al espacio la nave más avanzada para poder estudiar más de cerca el Sol. El SDO (Solar Dynamics Observatory) ha enviado a la Tierra sus primeras imágenes, que revelan detalles nunca vistos y que ayudarán a los científicos a comprender mejor la dinámica y la actividad solar. Impresionantes imágenes que deseo os gusten.

If you found difficult or extensive my explanations of the planets, you'll find a summary of each of them in the following power point. Enjoy. ____________ Si te han parecido difíciles o extensas las explicaciones sobre los planetas, encontrarás un resumen de cada uno de ellos en el siguiente power point. Que lo disfrutes. Los planetas del sistema solar View more presentations from manisero399 .

If you want to see stunning pictures of the Solar System provided by NASA click below and discover the wonders of our system. Si quieres ver unas fotos impresionantes del Sistema Solar de la NASA haz click debajo y descubre de cerca las maravillas de nuestro sistema. Visit My Photos - 26 Pics Fotos del Sistema Solar

If you want to know how to call the different parts of the solar system in English, click on the image. Si quieres saber como se llaman las diferentes partes del Sistema Solar en Inglés, haz click en la imagen.

If you have found the above explanations  difficult, you can check this link of science education for children and read the explanation given about the solar system. http://educa-ciencia.com/sistema-solar-primaria.htm Si las explicaciones anteriores te han sido difíciles, puedes consultar esta página de educa-ciencia y leer la explicación para niños que se da sobre el Sistema Solar.

The Moon is the only natural satellite of the Earth. It is the largest natural satellite of a planet in the Solar System relative to the size of its primary .  The Moon is in synchronous rotation with Earth, always showing the same face with its near side marked by dark volcanic Maria that fill between the bright crustal highlands and impact craters. It is the brightest object in the sky after the Sun from the Earth, although its surface is actually dark, we see it bright because of reflectance. The average distance between the center of the Earth and the Moon is 384,400 km and a diameter of 3,476 km, a quarter of the Earth. The Moon is a differentiated body: it has a  crust, a mantle, and a solid iron-rich inner core. It takes our Moon about 29.5 days to completely cycle through all eight phases. Occasionally (about every 2.7 years) there are two Full Moons in the same month. This is referred to as a Blue Moon. Hence the saying "Once in a Blue Moo...

In the following link, you will find an entertaining tour through the Solar System, with allits major bodies. It's interesting to see in scale the distance between planets. Note that Eris is called Xena (provisional name when it was discovered). Makemake and Haumea had not yet been classified as dwarf planets when this program first saw the light. Hope you like it. To take the tour, click the link below: ___________________ En el siguiente link, encontraréis un entretenido paseo por el Sistema Solar, con los planetas más importantes. Es interesante ver "a escala" la distancia entre planetas. Observad que Eris es llamado Xena (su nombre provisional cuando fue descubierto). Makemake y Haumea aún no habían sido catalogados como planetas enanos cuando se realizó este programa. Espero que os guste. Para dar el paseo, pincha aquí: Paseo por el Sistema Solar

Eris, Makemake and Haumea are dwarf planets located behind Pluto, in areas of the solar system known as scattered disk and Kuiper Belt. They are known as dwarf planets likewise Ceres and Pluto, but unlike these two have not been seen in sufficient detail to show that completely fit the definition of planets. Eris has a mass larger than Pluto and Makemake and Haumea are still under investigation. Besides these three bodies fall into a new category called "plutinos" or "trans-" by many. Although the IAU does not specify a specific name, are often referred to by the abbreviation TNO (Trans neptunian object). This category of objects similar to Pluto only applies to dwarf planets if they are trans-Neptunian objects and their periods, inclinations and eccentricity are similar to those of Pluto and therefore are on the scattered Disk, the Kuiper Belt or the Oort Cloud. In addition, there are a few bodies who are candidates for recognition as "dwarf planets" ...

Pluto is the second dwarf planet in the solar system and is part of a binary planetary system with its "satellite" Charon. Charon becomes more than just a satellite, as presenting about the 50% of a dual system. For years it has been considered a "planet" but since 2006 reverted to its category of "dwarf" planet. Pluto has an extremely thin atmosphere, consisting of nitrogen, methane and carbon monoxide, which freezes and collapses on its surface as the planet moves away from the Sun. Pluto's orbit is highly eccentric compared to the rest and for 20 of the 249 years that needs to cover it, it is closer to the Sun than Neptune. Charon is 1192 kilometers in diameter and is 19,640 kilometers from the planet Pluto has a diameter of 2.390. They have been regarded as a double planet not only because their masses are similar, but because the centroid is outside of Pluto and both orbiting around that point. The Pluto-Charon binary system also has two satell...

Neptune is the eighth and last "huge" planet in the Solar System. It is part of the so-called gas giants, and was discovered, as Ceres and Uranus through mathematical predictions. Neptune's magnetic field is also highly tilted at 50 degrees to the axis of rotation and displaced at least 13,500 km from the physical center. It is thought that this extreme orientation may be characteristic of internal flows of the planet and not the result of the tilt of the planet itself or of any possible reversals at the fields of Neptune or Uranus. Although it is very far from the sun, the planet seems to have an internal heat source. Neptune's atmosphere has a slot structure and composition similar to that found in the other gas giants, as well as phenomena such as hurricanes occur in the giants, whose diameter would be similar to that of Earth. There are thirteen known moons of Neptune. The largest is Triton, which owns more than 99.5% of the mass in the orbit around Neptune and...

Uranus is the seventh planet from the Sun and the third largest. The main feature of Uranus is the inclination of its axis almost ninety degrees with respect to its orbit, an inclination which is not only limited to the same planet, but its rings, satellites and magnetic field. Uranus has the most uniform surface of all the planets by their characteristic blue-green color produced by the combination of gases in its atmosphere. Although at first glance it may not seem, it has a system of rings, including one blue. It is also a gaseous planet. As happens with Venus, Uranus has a retrograde motion, turning clockwise. The planet has an atmosphere formed by a mixture of hydrogen and helium and traces of methane (being about 15% of its planetary mass) and the mantle would be formed by ice and chemical oceans, water, ammonia and methane, providing a high electrical conductivity. Uranus has 27 known moons, Titania and Oberon being the largest with a similar size (1580 and 1520 km in diameter...

Saturn is the sixth planet in distance from the sun, it is the second largest in size and mass after Jupiter and is the only planet in our solar system with a ring system visible from Earth. Saturn's atmosphere has a system of light and dark stripes similar to those of Jupiter and has strong winds dominated by intense equatorial current level cloud height, which has been reached to date at speeds of up to 450 m / s. This atmosphere is formed in larger proportion by hydrogen and helium, along with traces of other gases. The planet itself comprises a 90% hydrogen and 5% of helium, and possibly higher clouds are formed of crystals of ammonia. Saturn is attributed to have a large number of natural satellites, 65 in total, the largest of which, Titan is the only satellite in the solar system with a substantial atmosphere. Saturn takes nearly 30 Earth years to circle the Sun and its diameter is 116,000 km. ____________________________ Saturno es el sexto planeta del Sistema Solar, ...

Jupiter is the fifth planet in distance from the sun. It is part of the so-called gaseous planets. It is the largest of the planets in the Solar System. It is known for its stripped atmosphere. One of the most marked features is the Great Red Spot, which has been known since 1664. Jupiter's atmosphere does not have a clear boundary with the liquid inside the planet. It is composed mostly of hydrogen and helium, and contain traces of methane, water vapor, ammonia, and hydrogen sulfide. In the planet's interior we find hydrogen, helium and argon progressively compressed, and it is believed to exist beneath a rocky core composed mainly of ice and denser materials about seven Earth masses. Jupiter has at least 63 moons. The ones called Galilean (Io, Europa, Ganymede and Callisto) resemble inner solar system planets by size and composition. Its diameter is 139,892 km and it takes almost 12 Earth years to circle the Sun ________________________ Júpiter es el quinto plan...

Ceres is a the dwarf planet closest to the Sun. Until August 24, 2006, it was considered the largest asteroid discovered by man and until 1850 it was considered a normal planet. When discovered in January 01, 1801, it confirmed the Titius-Bode law published just three years before, confirming that in the fifth place of the law, to 2.8 AU  there ought to be a planet, and it was Ceres. Later it was dismissed by the number of asteroids that revolved in the same orbit and was wrongly identified as one of them,  until 2001 when the Hubble Space Telescope photographed Ceres and confirmed that not only was spherical, but also have different spectral properties to other asteroids around it. Its reality was discussed once again, it was claimed to be a small planet or planetary embryo,  surrounded by small asteroids differentiated him. There are indications of a warm iced surface and a weak atmosphere. Its diameter is 952.4 km and takes 1680.59236 days to circle the Sun. _______...

Mars is also called the Red Planet and is the fourth planet from the Sun. It is part of the so-called rocky planets like Earth and is in many aspects the planet most alike the Earth. The atmosphere of Mars is a hundredth of the one of the Earth and its composition is essentially: carbon dioxide in a high percentage with some nitrogen, argon and molecular oxygen. The ozone content is 1000 times lower than the Earth, so that the layer is unable to block ultraviolet radiation. Its atmosphere is dense enough to hold strong winds and vast dust storms that can eventually encompass the entire planet for months creating sand dunes, common renderings in Martian deserts. Mars has two small moons, whose orbit is very close to the planet, Phobos and Deimos. It takes 687 days to orbit around the sun. Its diameter is 6780 km. ___________________________ Marte es también llamado el Planeta Rojo y es el cuarto planeta del Sistema Solar. Forma parte de los llamados planetas rocosos como la Tierra...

The Earth is the third planet in proximity to the Sun and it is the densest and fifth-largest of the planets in the Solar System. It is a rocky planet and the only hitherto known with existence of life as millions of species living in it. The Earth has a thick atmosphere composed by 78% nitrogen, 21% oxygen and 1% molecular argon, plus traces of other gases such as carbon dioxide and water vaporized. The atmosphere lets in sunlight turn trapping terrestrial radiation, producing the greenhouse effect. Thanks to this, the Earth's average temperature is about 17 ° C. The Earth's atmospheric composition is maintained by the biosphere, thanks to the large amount of free oxygen produced by plants through photosynthesis, which by the action of sunlight transforms CO2 into O2. Free oxygen in the atmosphere is the result of the presence of life on earth and not vice versa. The Moon is the only natural satellite of the Earth, with an average distance of 384,400 km. As the size differen...

Venus is the second planet of our solar system in order of distance from the Sun. It is a terrestrial planet very similar to Earth, as both coincide in size, mass and composition. Venus orbit is an ellipse with an eccentricity of less than 1%, which is practically a circumference. Venus has a dense atmosphere, composed mostly of carbon dioxide and nitrogen in smaller amounts. The pressure at the surface level is 90 times the atmospheric pressure at the Earth's surface and its large amount of CO2 in the atmosphere causes a strong greenhouse effect that raises the surface temperature of the planet to about 464 ° C. Venus rotates on itself in a retrograde movement in the same direction clockwise, from east to west instead of west to east as almost all the planets, taking a walk in the sun land 224.701 days.  ____________________ Venus es el segundo planeta del Sistema Solar en orden de distancia desde el Sol y es un planeta de tipo terrestre muy similar a la Tierra, ya que a...

Mercury is the planet of the solar system closest to the Sun and the smallest with the exception of the dwarf planets. It is one of the rocky planets and has no satellites. Has a lighter atmosphere consisting of potassium, sodium and other elements. The pressure of the atmosphere is a hundred thousandth of the atmospheric pressure on the surface of the earth. Perhaps because of being a small planet its gravity is insufficient to hold for long periods of time major atmospheric density. Mercury has an orbital period of about 88 Earth days. Because Mercury's orbit lies within Earth's orbit, it can appear in Earth's sky in the morning or the evening, but never in the middle of the night. _________________ Mercurio es el planeta del Sistema Solar más próximo al Sol y el más pequeño a excepción de los planetas enanos. Es uno de los planetas rocosos y no tiene satélites. Tiene una liviana atmósfera constituida por potasio, sodio y otros elementos. La presión de la atmósfera...

A planet is an astronomical object orbiting a star (the Sun in our Solar system) or stellar remnant  that is massive enough to be rounded by its own gravity. The planets in our system might be divided in three groups according to the IAU definition of planet of 2006: - Inner terrestial rocky planets: Mercury, Venus, Earth and Mars. - Outer gas giant Planets: Jupiter, Saturn, Uranus and Neptune.  - Dwarf planets: Ceres, Pluto, Eris, Makemake and Haumea. According to the IAU resolution, the definition of planet in the Solar System set in 2006 states that a planet is a celestial body which: is in orbit around the Sun, has sufficient mass to assume hydrostatic equilibrium (a nearly round shape) is not a satellite of a planet or any other stellar body. There is a forth rule, much discussed, that sets a difference between dwarf planets and the classical ones: has "cleared the neighbourhood" around its orbit. Bodies which fulfill the first two...

Have you ever imagined how would it be like to be close to the sun? The Sun is the only star that inhabits our Solar System. Around this star orbit the planets, including Earth. The sun's energy comes to us in the form of sunlight. It supports almost all forms of life on Earth via photosynthesis, and drives the climate and weather of our planet. Its temperature reaches million degrees Kelvin and it has got a diameter of about 1,400,000 Km, which is over 100 times greater than the diameter of the Earth. Here you have a video showing how it feels to be closely to solar flares. ___________________ ¿Os habéis imaginado alguna vez como sería estar cerca del Sol? El Sol es la única estrella que se encuentra en nuestro Sistema Solar. Alrededor de este astro orbitan los planetas, incluida la Tierra.  La energía del Sol nos llega a nosotros en forma de luz solar y sustenta a casi todas las formas de vida de la Tierra a través de la fotosíntesis, además conduce el clima  y ...

Here you have a funny video about the planets that form our solar system; in which we see the eight planets and five dwarf planets  according to their distance from the Sun. The video is accompanied by music to make it more entertaining and information about their diameter and location in English. Hope you enjoy. ______________________ Aquí os dejo un entretenido video sobre los planetas del Sistema Solar en el que vemos, de manera tridimensional, a los ocho planetas  y a los cinco planetas enanos que lo forman, según su distancia desde el Sol. El vídeo va acompañado de música para hacerlo más ameno y de información sobre su diámetro y situación, eso sí, en inglés. Espero que lo disfrutéis.

The solar system to which we belong to is a planetary system in the galaxy we call the Milky Way and is found specifically in one of the arms of it, called the Orion Arm. According to recent estimates, the solar system is about 28 thousand light-years from the center of the Milky Way. The solar system is named after the single star that is formed by, the Sun. There are eight planets orbiting the star (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune), five dwarf planets (Ceres, Pluto, Eris, Makemake and Haumea) and other bodies among which are the asteroids, moons or comets and interplanetary space between them. El Sistema Solar al que pertenecemos es un sistema planetario de la galaxia que denominamos Vía Láctea y se encuentra concretamente en uno de los brazos de ésta, el llamado Brazo de Orión. Según las estimaciones más recientes, el Sistema Solar se encuentra a unos 28 mil años-luz del centro de la Vía Láctea. El Sistema Solar, debe su nombre a la una únic...