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MoneyAsteroid nearly a mile wide seen approaching with its own moon

05:51  22 may  2019
05:51  22 may  2019 Source:   cnet.com

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An asteroid nearly a mile (1.5 kilometers) wide is flying in for a visit soon and it ' s bringing its sidekick along for the ride. This will be the second-closest approach it ' s An asteroid nearly two miles wide will pass by Earth Friday and it will bring with it an unexpected guest: Its own 2,000-foot wide moon .

The binary system make its nearest pass by the planet on Saturday. STATEN ISLAND, N.Y. -- A nearly mile - wide asteroid with its Discovered in 1999, NASA describes the asteroid as a binary system made up of two objects -- Beta, which is about one-third of a mile in diameter and orbits the

Asteroid nearly a mile wide seen approaching with its own moon © CNET didymos-asteroid-system

A "potentially hazardous" asteroid and its smaller sidekick have been spotted from the ground coming in for flyby of our planet that will see the space objects pass by us safely on Friday.

The unnamed space rock designated as Asteroid (66391) 1999 KW4 is a binary system, meaning it's composed of one large asteroid orbited by a smaller moon. The larger half of the duo is nearly a mile (1.5 kilometers) wide, while its smaller satellite is about a third of a mile wide (0.5 kilometers). The asteroid was first discovered 20 years ago, and both backyard and professional astronomers are preparing to observe it as it makes its latest close approach May 25.

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A large asteroid that has its own tiny companion moon is set to whiz past Earth this weekend. The so-called binary asteroid , known as 1999 KW4, will make its closest approach at 7:05 p.m. ET on May 25, when it will be roughly 3.2 million miles from Earth—a safe distance but relatively paltry in space

An asteroid nearly a mile wide with a moon of its own is expected to pass by Earth this weekend, traveling at 48,000 mph. On Saturday evening, 1999 KW4 will make its closest approach to Earth. It will be visible until May 27. Because it carries a large moon along with it, the asteroid is technically

Asteroid nearly a mile wide seen approaching with its own moon © Provided by CBS Interactive Inc. 1999

The European Space Agency released a brief animation of the approaching system captured from an observatory on Reunion Island in the Indian Ocean on May 9.

While its serious size has earned 1999 KW4 the title "potentially hazardous," it'll clear Earth this year at a very safe distance of 3,219,955 miles (5,182,015 kilometers). This will be the second-closest approach it's made in the past two decades, and the nearest it'll come to our planet until 2036. It'll also be by far the largest object to come within about 20 lunar distances (4,647,790 miles or 7,479,894 kilometers) of us this year.

The Las Cumbres Observatory describes the main asteroid in the system as "slightly squashed at the poles and with a mountain ridge around the equator, which runs all the way around the asteroid. This ridge gives the primary an appearance similar to a walnut or a spinning top."

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An asteroid which measures nearly a mile wide and is orbited by its own moon , is expected to pass by the Earth on Saturday, May 25, at speeds of 48,000 miles per 3, 2008, shows an artist's rendition of ESA's probe Rosetta's closest approach to Earth during its second swing-by of our planet on Nov.

NASA has warned an asteroid big enough to boast its own mini moon has made a near-Earth approach . NASA asteroid Earth approach : Space rocks do occasionally collide with our planet (Image: Getty). See today's front and back pages, download the newspaper, order back issues and

Some of the world's largest telescopes, including the massive Arecibo radio observatory on Puerto Rico, will observe 1999 KW4 as it flies by to get more data on both rocks and the separation between them.

The system will be moving fast when it visits, at 48,123 miles per hour (77,446 kilometers per hour), which may make it easier for amateur observers to get a look at it. If you want to try to spot it, NASA solar system ambassador Eddie Irizarry has some tips and helpful charts to get you started over at EarthSky.

Read more

The Moon That Got Away.
For the first time, astronomers thought they’d discovered a moon in another solar system. But others weren’t sure it actually existed.

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