12/25/2023 0 Comments Heavenly bodies solar system wikipediaThis bright streak only lasts for a short duration of time because the tiny meteors evaporate due to the excessive heat. We call them shooting stars, but in fact, these are the meteors. Due to this heat, they begin to glow and evaporate quickly that is why sometimes, on a night, we see bright streaks of light passing through the night sky. They suffer large frictional force due to their motion through the atmosphere, which causes them to heat up. MercuryĪ meteor is a small object that occasionally enters the atmosphere of the Earth at really high speeds. Planets are continuously moving, and their position to the stars keeps changing. Stars twinkle, but the planets do not, and this helps us differentiate between a star and a planet in the night sky. Unlike stars, planets do not have their light they reflect the rays of light falling on them from the nearby star. These planets resemble stars in their structure but differ in composition. However, various man-made space probes have also been sent around the moon and mars to study their structure. Some planets have small celestial bodies revolving around them, and these are known as their natural satellites.įor example, the moon is the natural satellite of the Earth. A planet also rotates about its axis, and the time taken to complete one rotation around its axis is known as the rotation period. The period of revolution of a planet increases with its distance from the sun. The time taken by a planet to complete one revolution around the sun is known as its period of revolution. These planets move around the sun in a definite path called an orbit. The eight planets in the increasing order of distance from the Sun are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Like all other planets in the solar system, Earth revolves around the sun. The sun lies at the approximate centre of the solar system. The gravitation force of attraction between the sun and the other bodies around it holds our solar system in its place. It is composed of many heavenly bodies like comets, asteroids, meteors, and planets. Our solar system consists of the sun and the celestial bodies revolving in it. Learn about Satellite here What is a Solar System? Let us learn more about Solar System the planets with a diagram. Over the years, there have been new studies on the solar system. The solar system as we know it is almost (4.6) billion years old. Comets and other ice things formed of incredibly tenuous gases and dust particles are found in the solar system. For example, a NASA Astronomy Picture of the Day refers to the Moon eclipsing and occulting Saturn interchangeably.The solar system comprises the Sun, eight planets, stars from the Milky Way galaxy orbiting the Sun, 210 planetary satellites, and countless asteroids. The term eclipse is also used more generally for bodies passing in front of one another. By extension, transits of the Sun by a satellite of a planet may also be called eclipses, as with the transits of Phobos and Deimos shown on NASA's JPL photojournal, as may the passage of a satellite into the planet's shadow, as with this eclipse of Phobos. Transits and occultations of the Sun by Earth's Moon are called solar eclipses regardless of whether the Sun is completely or partially covered. An eclipse occurs when a body totally or partially disappears from view, either by an occultation, as with a solar eclipse, or by passing into the shadow of another body, as with a lunar eclipse (thus both are listed on NASA's eclipse page).In the combined case where the smaller body regularly transits the larger, an occultation is also termed a secondary eclipse.A transit occurs when a smaller body passes in front of a larger one.An occultation occurs when an apparently larger body passes in front of an apparently smaller one.Syzygy sometimes results in an occultation, transit, or eclipse. On June 3, 2014, the Curiosity rover on Mars observed the planet Mercury transiting the Sun, marking the first time a planetary transit has been observed from a celestial body besides Earth. It is also used to describe situations when all the planets are on the same side of the Sun although they are not necessarily in a straight line, such as on March 10, 1982. For example, one such case occurred on March 21, 1894, around 23:00 GMT, when Mercury transited the Sun as would have been seen from Venus, and Mercury and Venus both simultaneously transited the Sun as seen from Saturn. The word syzygy is often used to describe interesting configurations of astronomical objects in general. Often applied when the Sun and Moon are in conjunction ( new moon) or opposition ( full moon). Solar and lunar eclipses occur at times of syzygy, as do transits and occultations. The word is often used in reference to the Sun, Earth, and either the Moon or a planet, where the latter is in conjunction or opposition.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |