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Thread: Giant Asteroid to hit the Earth on 11/9?

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    Re: Giant Asteroid to hit the Earth on 11/9?

    Quote Originally Posted by GreenvilleGrows View Post
    Question: Will the asteroid, as small as it is, exert gravitational or similar force upon the Earth? If so, how long would such force take to register and how significant could it be?
    Hey, bud... Thank you for the setup for my latest yo mama joke.

    Yo mama is so fat that, if she were to jump into the Atlantic Ocean, she would create a bigger tide than a fly by from asteroid YU55. Come to think of it, so could my mama, and she was skinny.
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    Re: Giant Asteroid to hit the Earth on 11/9?

    Quote Originally Posted by danarhea View Post
    Hey, bud... Thank you for the setup for my latest yo mama joke.

    Yo mama is so fat that, if she were to jump into the Atlantic Ocean, she would create a bigger tide than a fly by from asteroid YU55. Come to think of it, so could my mama, and she was skinny.
    What I found out was that if the distance between two objects decreases by a factor of 10, the gravitational influence exerted by each object upon the other would increase by a factor of 100. In the language of the physicist, the effect of gravitational force "varies inversely as the square of the distance". This principal is known as the inverse square law.

    So, I guess, if the asteroid is 1/2 the distance from earth as the moon, then its mass would exert 4x's the force on the earth compared to the moon's mass (if they were the same size). If the moon is about 2,000 miles in diameter, and the asteroid is about 1/4 mile, then would the asteroid have 1/2000th of the gravitational effect upon the earth as the moon? I don't really know how the moon’s gravity affects the earth except as to tides and scenery. But, whatever it does, it will have a tiny bit more help.

    Also, the moon is in constant orbit whereas the asteroid will be coming towards us and then going away. I don’t know if that kind of action in space has a correlating reaction or not.

    If the ocean is 1.3 billion cubic kilometers, and the moon exerts enough force on it to move it, then would the asteroid exert enough force to move 650,000 cubic kilometers of water? What if, due to the nature of the difference of the approach, it might condense that same effect on less overall volume but with more potency? Instead of a redistribution, more of a big ripple in the water from a push.

    How much water could your mama displace?

    Please, if you read any of the above, know that I don't know anything about science or math - it's just a thought I had.
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    Re: Giant Asteroid to hit the Earth on 11/9?

    How much water could your mama displace?
    Enough to make her a sizable force worthy of her own orbit?
    A screaming comes across the sky.
    It has happened before, but there is nothing to compare it to now.
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    Re: Giant Asteroid to hit the Earth on 11/9?

    Quote Originally Posted by GreenvilleGrows View Post
    What I found out was that if the distance between two objects decreases by a factor of 10, the gravitational influence exerted by each object upon the other would increase by a factor of 100. In the language of the physicist, the effect of gravitational force "varies inversely as the square of the distance". This principal is known as the inverse square law.

    So, I guess, if the asteroid is 1/2 the distance from earth as the moon, then its mass would exert 4x's the force on the earth compared to the moon's mass (if they were the same size). If the moon is about 2,000 miles in diameter, and the asteroid is about 1/4 mile, then would the asteroid have 1/2000th of the gravitational effect upon the earth as the moon? I don't really know how the moon’s gravity affects the earth except as to tides and scenery. But, whatever it does, it will have a tiny bit more help.

    Also, the moon is in constant orbit whereas the asteroid will be coming towards us and then going away. I don’t know if that kind of action in space has a correlating reaction or not.

    If the ocean is 1.3 billion cubic kilometers, and the moon exerts enough force on it to move it, then would the asteroid exert enough force to move 650,000 cubic kilometers of water? What if, due to the nature of the difference of the approach, it might condense that same effect on less overall volume but with more potency? Instead of a redistribution, more of a big ripple in the water from a push.

    How much water could your mama displace?

    Please, if you read any of the above, know that I don't know anything about science or math - it's just a thought I had.

    No, the asteroid is far too small. It's gravity is negligible.

    Look the moon is around 2000 miles in diameter. The asteroid is less than a quarter mile in diameter. V= pi x R cubed. The moon's volume is about 3.1 billion cubic miles. The asteroid's volume is around 0.14 cubic mile. The moon is tens of BILLIONS of times more massive (assuming density is roughly the same) than the asteroid.

    The 'roid's density will be somewhere between 1 and 8 tons per cubic meter. I forget what the moon's is, but it's in that range.

    This asteroid's gravitational field could barely cause a tsunami in a BUCKET of water. Even if it hits, gravitational effects will be negligible. It could take out a city, sure... if it hit offshore maybe a whole coastline, at worst. But they dont think it is going to hit so it almost certainly won't.


    175,000 miles is close in cosmic terms, but we've had plenty of asteroids come closer.


    in the words of Tony Soprano, "Fuggetaboutit."

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    Re: Giant Asteroid to hit the Earth on 11/9?

    Quote Originally Posted by Goshin View Post
    Nope, no earthquakes or tsunami or anything like that, from a near-miss. It's way too small.


    If it hit, it wouldn't be TEOTWAWKI. It would be pretty darn bad for somebody, but not a dino-killer or climate-wrecker, let alone a planet-killer.
    Actually it could be a very serious problem even at that size. People may be freaked at the idea, but the best outcome would probably be for it to hit land, obviously not a heavily-poplated area. Were it to hit water, especially a few dozens miles off a coastline, that could be a far more serious issue (see Deep Impact though at a somewhat smaller scale). Of course, it may break up from getting too close to the Earth's gravitational well or break apart in the atmosphere.
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    Re: Giant Asteroid to hit the Earth on 11/9?

    Quote Originally Posted by Goshin View Post
    Technically yes; pragmatically no. The asteroid is only 1300 feet across. It's gravitational field would be measured in 1/1000ths of one G. If you were standing on its surface, you might be in peril of achieving the asteroid's own escape velocity by jumping very hard. (IE fly off the surface and into space by jumping). I don't have the equations handy for calculating G from size/mass/density on hand or I'd tell you exactly.


    Nope, no earthquakes or tsunami or anything like that, from a near-miss. It's way too small.


    If it hit, it wouldn't be TEOTWAWKI. It would be pretty darn bad for somebody, but not a dino-killer or climate-wrecker, let alone a planet-killer.
    Plugged it into an escape velocity calculator, and you could reach escape velocity by sneezing, basically. Came out to like .02 inches per second, assuming average density of granite.

    Now to calculate the impulse generated by a sneeze...
    Last edited by Deuce; 11-06-11 at 03:52 PM.
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    Re: Giant Asteroid to hit the Earth on 11/9?

    Quote Originally Posted by Enola View Post
    When it's time, it's time. Why stress over it?
    I just don't want to go before Mass Effect 3 is released.

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    Re: Giant Asteroid to hit the Earth on 11/9?

    Quote Originally Posted by GreenvilleGrows View Post
    What I found out was that if the distance between two objects decreases by a factor of 10, the gravitational influence exerted by each object upon the other would increase by a factor of 100. In the language of the physicist, the effect of gravitational force "varies inversely as the square of the distance". This principal is known as the inverse square law.

    So, I guess, if the asteroid is 1/2 the distance from earth as the moon, then its mass would exert 4x's the force on the earth compared to the moon's mass (if they were the same size). If the moon is about 2,000 miles in diameter, and the asteroid is about 1/4 mile, then would the asteroid have 1/2000th of the gravitational effect upon the earth as the moon? I don't really know how the moon’s gravity affects the earth except as to tides and scenery. But, whatever it does, it will have a tiny bit more help.

    Also, the moon is in constant orbit whereas the asteroid will be coming towards us and then going away. I don’t know if that kind of action in space has a correlating reaction or not.

    If the ocean is 1.3 billion cubic kilometers, and the moon exerts enough force on it to move it, then would the asteroid exert enough force to move 650,000 cubic kilometers of water? What if, due to the nature of the difference of the approach, it might condense that same effect on less overall volume but with more potency? Instead of a redistribution, more of a big ripple in the water from a push.

    How much water could your mama displace?

    Please, if you read any of the above, know that I don't know anything about science or math - it's just a thought I had.
    If you know the inverse square law, then you know enough to realize that YU55 will have no effect on the earth.... Well, it will have SOME effect, but not enough to even notice.

    And my mama displaces less water than your mama..... Nyah Nyah Nyah.
    The ghost of Jack Kevorkian for President's Physician: 2016

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    Re: Giant Asteroid to hit the Earth on 11/9?

    What people don't realize is that this object is actually the 12th. Imam coming to Earth in fulfillment of prophecy. Now that a faithful follower of Allah has taken control of the great Satan, the way for his coming has been made clear.

    And, you won't read that in the liberal press.
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    Re: Giant Asteroid to hit the Earth on 11/9?

    Don't think you have to get too worried about the asteroid unless the Rev Harold Camping makes a prediction about it and the end of the world.

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