Meteorit vs Earth Impact-Apophis

Predicting Apophis' Earth Encounters in 2029 and 2036 ,Upon its discovery in 2004, Apophis was briefly estimated to have a 2.7% chance of impacting the Earth in 2029. Additional measurements later showed there was no impact risk at that time from the 210-330 meter (690-1080 foot) diameter object, identified spectroscopically as an Sq type similar to LL chondritic meteorites. However, there will be a historically close approach to the Earth, estimated to be a 1 in 800 year event (on average, for an object of that size).Arecibo Radar Image of Apophis

Apophis Position Uncertainty
The Arecibo planetary radar telescope subsequently detected the asteroid at distances of 27-40 million km (17-25 million miles; 0.192-0.268 AU) in 2005 and 2006. Polarization ratios indicate Apophis appears to be smoother than most NEAs at 13-cm scales. Including the high precision radar measurements in a new orbit solution reduced the uncertainty in Apophis' predicted location in 2029 by 98%.

While trajectory knowledge was substantially corrected by the Arecibo data, a small estimated chance of impact (less than 1 in 45,000 using standard dynamical models) remained for April 13, 2036. With Apophis probably too close to the Sun to be measured by optical telescopes until 2011, and too distant for useful radar measurement until 2013, the underlying physics of Apophis' motion were considered to better understand the hazard.
Have a nice live ,you got not that much :)

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Science & Technology

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• meteorit

[UzumakiNarutoKun96]

Omh retards. apophis is only 300 metres wide. ahahaha. It wont be an apocalypse. U know if it hits the water it will make an 3 miles wide hole. The one that fucked up the dinosaurs made a 150 miles hole "i think" "might have been more" and it also had ALOT of rocks with it that ignited the athmosphere. Relax ppl. If you move away from the impact place you WILL be fine.

[reinux]

ah, the things they'll find when they excavate our extinct civilizations.

[LastSpartanInforce]

Apparently there gonna mine it or something. No joke

[albedoshader]

@albedoshader: The air “blast” would arrive after about 2½ minutes. After 20 s the earth would shake. According to the Mercall scale these are the effects: Felt indoors by many, outdoors by few during the day. At night, some awakened. Windows, doors disturbed; walls make cracking sound. Standing cars rocked noticeably.

V. Felt by nearly everyone; many awakened. Some windows broken. Unstable objects overturned. Pendulum clocks may stop. Not very cataclysmic after all.

[albedoshader]

@koenigclinto: Apophis is too slow (just 13 km/s impact velocity) to generate a fireball. You need velocities above 15 km/s for that. And an impact crater of just a few km diameter is a lot smaller than any of these animations show. A worst-case impact (at 90°) would spread the fragments after atmospheric entry to a 500x500 m area and would generate a crater of roughly 4.3 km diameter and 500 m depth. At a 100 km distance the air blast would be about 76 dB loud, the wind velocity just 14 m/s.

[koenigclinto]

It would probably leave a crater about 6 miles wide(9.5km). At 100 miles(160km) away, you would have a minute or two of intense heat, some weaker buildings would be damaged, a minute later maybe some dusting, and a few minutes after that you'd maybe get a burst of wind up to 50mph(80kph) or so.

[koenigclinto]

Yeah, Apophis wouldn't do that much damage. If it was 330m in diameter, dense as iron, hit the earth at a 90degree angle, was going 20km/ps, and struck land, which would be about the worse case senario, it would definitely effect people within about a 100 mile radius, but not much more than that.

[Wodkahlicious]

thats one big banana

[RCT3Crashes100]

Heavens Above! In this video the asteroid is severely oversized! An asteroid this big compared to earth would probably be flung back into space or caught as a moon by earth's gravity! Earth already has an asteroid moon, Cruithne, which is far larger than Apophis.

[Turbovessa]

Apophis is not this big and people can nuke it. And no meteor is on its way to us in 2012 either, we haven't seen anything but stars on the sky til today. And impacts involving 300 mile rocks have stopped billions of years ago.