Technology: First Asteroid Ever Discovered Is Actually A Dwarf Planet - - PressFrom - US
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Technology First Asteroid Ever Discovered Is Actually A Dwarf Planet

15:30  15 january  2018
15:30  15 january  2018 Source:   ibtimes.com

"Potentially hazardous" asteroid to fly by Earth

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The first asteroid discovered in the solar system took an entire year to nail down. It was Ceres, the largest object in the asteroid belt. When it was first spotted shortly into 1801, scientists didn’t know what to make of the object or how to track it in the night sky, TED-Ed explains in a video (below).

A dwarf planet is a planetary -mass object that is neither a true planet nor a natural satellite. That is, it is in direct orbit of a star, and is massive enough for its gravity to compress it into a hydrostatically. © Provided by IBT US. The first asteroid discovered in the solar system took an entire year to nail down.

  First Asteroid Ever Discovered Is Actually A Dwarf Planet © Provided by IBT US

The first asteroid discovered in the solar system took an entire year to nail down. It was Ceres, the largest object in the asteroid belt.

When it was first spotted shortly into 1801, scientists didn’t know what to make of the object or how to track it in the night sky, TED-Ed explains in a video (below). Astronomers were stumped for months and could not find Ceres once they lost sight of it. It took a new mathematical model for predicting orbits before they were able to pinpoint it again, with its re-discovery taking place on the last day of the year.

“Ceres is a very large asteroid but through a telescope … Ceres looked like a pinpoint of light similar to a star,” according to the video. “We haven’t lost track of it since.”

Ceres Has Several Small Mountains

  Ceres Has Several Small Mountains NASA shared images captured by Dawn of a type of small mountain that is common to a specific region of the dwarf planet.The word tholus is derived from the Greek word tholos, and means a small dome-shaped hill or mountain (tholos means a circular building with a conical or vaulted roof). Kwanzaa is from Swahili and means “first fruits,” in reference to the harvest.

A dwarf planet is “a celestial body in direct orbit of the Sun that is massive enough for its shape to be controlled by Asteroids are also known as planetoids or minor planets . The term minor planet is actually preferred Furthermore, it was discovered that Pluto was actually roughly one-twentieth

Uranus was added as a planet in 1781 and Neptune was discovered in 1846 and Pluto in 1930. The first discovery of an asteroid -moon system was of asteroid Ida and its moon Dactyl in 1993. It is a dwarf planet and not an asteroid , because it satisfies the second criteria of having a round shape

Since its discovery more than 200 years ago, Ceres, which is about 600 miles across, has since been upgraded to a dwarf planet — the only one in the inner solar system. It has also had a visitor: NASA’s Dawn spacecraft entered Ceres’ neighborhood in 2015 and was the first craft to visit a dwarf planet.

Ceres is the biggest object in the asteroid belt and has been designated as a dwarf planet.Photo: NASA

The Occator Crater, as captured by NASA's Dawn spacecraft, is the brightest spot on Ceres because of a volcano that erupts salty material.Photo: NASA

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The term dwarf planet has been tossed around a lot in recent years. As part of a three-way categorization of bodies orbiting the Sun, the term was adopted in 2006 due Mike Brown (the leader of the Caltech team that discovered Eris) agrees with the reduction of the number of planets to eight.

Despite Planet X being discovered on February 18, 1930, the Lowell Observatory was not quite ready to announce this huge discovery until more research could be done. After a few weeks, it was confirmed that Tombaugh's discovery was indeed a new planet . On what would have been Percival

“Even though Ceres comprises 25 percent of the asteroid belt’s total mass, tiny Pluto is still 14 times more massive,” according to NASA.

Our understanding of asteroids has expanded tremendously since 1801 — as has the count of asteroids scientists have discovered. That number is in the several thousands.

“We must keep searching for asteroids in case there’s one out there on a collision course with Earth,” according to TED-Ed.

NASA, with help from other organizations, spends a good amount of time on preventing such a collision. That involves searching the sky for new asteroids and planning responses to asteroid emergencies. Contingency plans for avoiding a devastating asteroid crash include detonating a bomb on the space rock’s surface in the style of “Armageddon” and using gravity to draw it into a new course.

The space agency also recently sent its OSIRIS-REx spacecraft to a 4.5-billion-year-old asteroid named Bennu because, due to its age, it may hold clues about the formation of the solar system.

15 New Planets Discovered Near Solar System .
One of the 15 newly discovered planets, orbiting a red dwarf star located about 200 light years away from Earth, could be a super-Earth located within the habitable zone. "In our simulations, the atmosphere and the composition of the planet were assumed to be Earth-like, and there's no guarantee that this is the case,” Teruyuki Hirano, the lead researcher of the new study, from the Tokyo Institute of Technology, said in a statement. "Large planets are only discovered around metal-rich stars and what we found was consistent with our predictions.

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