Asteroid passing close to the Earth
26-01-2023, 19:00
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#1
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Dr Pepper Addict
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Asteroid passing close to the Earth
Asteroid 2023 BU will pass closer to the earth than some satellites.
It will pass over the southern tip of South America just after midnight GMT.
https://www.bbc.co.uk/news/science-environment-64411469
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26-01-2023, 19:13
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#2
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Trollsplatter
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Re: Asteroid passing close to the Earth
A pity in a way that it isn’t going to hit - a rock that size would make a spectacular fireball but not pose any significant threat to anyone on the ground.
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30-01-2023, 05:12
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#3
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An Awesome Dude
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Yea it would be interesting if it splashed down in the ocean somewhere.....
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01-02-2023, 21:36
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#4
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cf.addict
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Re: Asteroid passing close to the Earth
Central Russia !
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01-02-2023, 22:55
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#5
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The Dark Satanic Mills
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Re: Asteroid passing close to the Earth
Is this the green comet we can see tonight, or something else?
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02-02-2023, 01:33
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#6
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Re: Asteroid passing close to the Earth
It was something else, it flew past and was gone on the night of the 26th.
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24-03-2023, 19:56
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#7
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Re: Asteroid passing close to the Earth
Another one this weekend.
Quote:
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An asteroid large enough to destroy a city will pass between the orbits of the Earth and the Moon this weekend
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https://www.bbc.co.uk/news/science-environment-65061818
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24-03-2023, 20:12
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#8
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Just a Geek
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Re: Asteroid passing close to the Earth
Quote:
Originally Posted by Paul
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Isn't that crazy close?
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25-03-2023, 01:41
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#9
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Re: Asteroid passing close to the Earth
Yep, just under 110,000 miles is pretty close.
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25-03-2023, 06:11
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#10
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cf.mega pornstar
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Re: Asteroid passing close to the Earth
Quote:
Originally Posted by Jaymoss
Isn't that crazy close?
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Crazy that they only noticed it a year ago, it'll be back near missing again next year to
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25-03-2023, 10:38
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#11
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Trollsplatter
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Re: Asteroid passing close to the Earth
In galactic terms it’s less than a hair’s breadth. It’s worth remembering though that on a planetary scale, the chances of a city-killing meteorite actually landing close to a major population centre are pretty low. Most of the surface is water and most of the land is uninhabited.
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25-03-2023, 14:12
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#12
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Re: Asteroid passing close to the Earth
Quote:
Originally Posted by Chris
Most of the surface is water and most of the land is uninhabited.
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Unfortunately, the water part is still a bit of an issue, as any hitting an ocean would cause a tsunami.
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26-03-2023, 21:25
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#13
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The Dark Satanic Mills
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Re: Asteroid passing close to the Earth
Quote:
Originally Posted by Chris
In galactic terms it’s less than a hair’s breadth. It’s worth remembering though that on a planetary scale, the chances of a city-killing meteorite actually landing close to a major population centre are pretty low. Most of the surface is water and most of the land is uninhabited.
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Tell that to the dinosaurs.
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26-03-2023, 21:35
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#14
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Trollsplatter
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Re: Asteroid passing close to the Earth
Quote:
Originally Posted by Pierre
Tell that to the dinosaurs.
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That was an extinction event rather than a mere city-killer … their space rock was likely 50 or 60 times bigger than this one.
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29-03-2023, 23:15
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#15
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RIP Tigger - 12 years?!
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Re: Asteroid passing close to the Earth
It's not the size that matters as much as the velocity of impact. KE = 1/2 mass times the square of the velocity. Any rock hitting us is bad news.
(Incidentally, that's why, in some areas, the speed limit was lowered from 40mph to 30. Reason: square 30, you get 900...but square 40 and you get 1600, i.e. nearly double the kinetic energy. This is why impacts at 30 are so much more survivable...and why motorways are so dangerous if things go wrong.)
We definitely need Spaceguard to spot these wayward rocks sooner. Come back, Clarke, all is forgiven.
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