View Full Version : NEO Earth Close Approaches
Close Approach Data!
The following table shows close approaches to the Earth by near-Earth objects (NEOs) limited as selected in the “Table Settings” below. Data are not available prior to 1900 A.D nor after 2200 A.D. Data are further limited to encounters with https://cneos.jpl.nasa.gov/ca/neo_ca_info.html
https://cneos.jpl.nasa.gov/ca/
https://www.jpl.nasa.gov/asteroidwatch/
When it comes to a "dangerously close" object that is likely to hit the earth in the near future, no or very little information will be given.:ping:
Platapus
10-20-20, 05:59 PM
Sure close, but they never seem to hit the earth.
Just my luck.
Random Asteroid 2020!
Sure close, but they never seem to hit the earth.
Just my luck.
Random Asteroid 2020!Why not play the lottery then? :up:
Platapus
10-21-20, 04:18 PM
And use up all my luck?
No thanks, saving that for the asteroid. :up:
And use up all my luck?
No thanks, saving that for the asteroid. :up::Kaleun_Applaud:
About a "Hypothetical event". https://www.youtube.com/watch?v=PyMkD6pUWlg&t=29s
Rockstar
10-28-20, 08:09 PM
lets not forget about the possibility of a coronal mass ejection large enough to burn off earth's atmosphere, so there's that too.
Trying to remember what a viewer got as an answer to their question.
Question:
How big must a meteor/asteroid be before it can destroy earth - smashed into billions of stones(Like Alderaan in S.W.)
Answer:
The meteor must have a mass of 80 % of earth mass.
A mass lower than this will not destroy earth.
(I could remember wrong though)
Markus
Jimbuna
10-29-20, 12:36 PM
I;m not sure it would have to be that big, just big enough to knock Earth out of its orbit.
Platapus
10-29-20, 01:02 PM
That would depend on what the specific question is
Destroying the earth and destroying life on earth are different. Destroying higher level lifeforms will require a smaller mass than destroying lower lifeforms*
*For the purpose of this post, politicians are not considered lower life forms. Just go with me on this.
Jimbuna
10-30-20, 04:56 AM
Politicians....more akin to pond life mostly :03:
Here Platapus, look if ya can find any luck of random NEO https://en.wikipedia.org/wiki/List_of_asteroid_close_approaches_to_Earth_in_2020
https://theskylive.com/2020cx1-info :)
Aktungbby
10-30-20, 11:27 AM
Politicians....more akin to pond life mostly :03:C'MON NOW, just the green scum on the surface; surely not frogs n' turtles n' crawdads n' such! That's good eatin'! Oh my!:o
Texas Red
10-30-20, 01:08 PM
Even if we were to get hit by a rogue planet, if it had a greater gravitational pull or was larger, it would be very likely that we won't collide with the planet but rather we would get "Spaghettified" by its intense gravitational pull. So we would get stretched until we are shaped like an egg and then Earth will give way and it will just explode. The same thing can happen with a black hole. Theoretically, though, we can pass through the black hole unharmed because of the "worm-hole" theory that black holes are a passageway into other places of space. Something with Einstein's theory of relativity.
Though we wouldn't survive for long because we would freeze to death, lol.
Jimbuna
10-30-20, 01:44 PM
Even if we were to get hit by a rogue planet, if it had a greater gravitational pull or was larger, it would be very likely that we won't collide with the planet but rather we would get "Spaghettified" by its intense gravitational pull. So we would get stretched until we are shaped like an egg and then Earth will give way and it will just explode. The same thing can happen with a black hole. Theoretically, though, we can pass through the black hole unharmed because of the "worm-hole" theory that black holes are a passageway into other places of space. Something with Einstein's theory of relativity.
Though we wouldn't survive for long because we would freeze to death, lol.
What a charmer! :o
... if it had a greater gravitational pull or was larger, it would be very likely that we won't collide with the planet but rather we would get "Spaghettified" by its intense gravitational pull. So we would get stretched until we are shaped like an egg ...
I'm pretty sure a planet with that much mass cannot exist according to the laws of physics.
Scientists estimate that several dozen asteroids in the 6–12 m (20–39 ft) size range fly by Earth at a distance closer than the moon each year, but only a fraction of these are actually detected, which means having some form of "control" over what they are in principle impossible.
https://en.wikipedia.org/wiki/Asteroid_impact_avoidance#/media/File:Asteroid_Capture.jpg
Rockstar
10-30-20, 08:38 PM
Scientists estimate that several dozen asteroids in the 6–12 m (20–39 ft) size range fly by Earth at a distance closer than the moon each year, but only a fraction of these are actually detected, which means having some form of "control" over what they are in principle impossible.
https://en.wikipedia.org/wiki/Asteroid_impact_avoidance#/media/File:Asteroid_Capture.jpg
I had an app called 'Asteroid Alert' and there was more than just a few alerts of objects flying closer than the moon is to earth. First time it alerted my eyes got real big, I was like "damn that's close!" :o
I had an app called 'Asteroid Alert' and there was more than just a few alerts of objects flying closer than the moon is to earth. First time it alerted my eyes got real big, I was like "damn that's close!" :o You said "you had", does that mean it no longer exists, you have a link? ... Such a small sweet app could give a little excitement ... as the rest of life gives. Especially then with regard to what you experienced yourself. :yeah:
A Nasa probe sent to collect rock from an asteroid several hundred million kilometres from Earth is back on track after some technical concerns.
Officials behind the Osiris-Rex probe, which landed on Bennu earlier this week, were worried https://www.bbc.co.uk/news/science-environment-54672691 This meant that samples were spilling out from the craft.
But now the space agency says the rock samples have been safely sealed and the probe is ready to return to Earth.
https://www.bbc.com/news/science-environment-54738045
https://cneos.jpl.nasa.gov/about/target_earth.html
Texas Red
11-01-20, 06:42 PM
If you want a cool app that you can have on your phone where you can have a guide to the night sky and see everything there, you should get the Skyguide app, amazing!
I love it, very nicely mapped.
P.S. I am not a bot or anything even though it may sound like it.
If you want a cool app that you can have on your phone where you can have a guide to the night sky and see everything there, you should get the Skyguide app, amazing!
I love it, very nicely mapped.
P.S. I am not a bot or anything even though it may sound like it.
I know, YOU are not a bot!! :yep:
Is it good? Suitable for Android ....this app.:hmmm:
Texas Red
11-01-20, 10:09 PM
I know, YOU are not a bot!! :yep:
Is it good? Suitable for Android ....this app.:hmmm:
Yes, it is.
Yes, it is. Thanks, I will download it for fun.
Sky Map (https://play.google.com/store/apps/details?id=com.google.android.stardroid&hl=en_US&gl=US) by Google and Stellarium (https://play.google.com/store/search?q=Stellaruim&c=apps&hl=en_US&gl=US) are also excellent apps. Stellarium (http://stellarium.org/) is also available for free for desktop.
Sky Map (https://play.google.com/store/apps/details?id=com.google.android.stardroid&hl=en_US&gl=US) by Google and Stellarium (https://play.google.com/store/search?q=Stellaruim&c=apps&hl=en_US&gl=US) are also excellent apps. Stellarium (http://stellarium.org/) is also available for free for desktop. Great, thanks! :up:
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2020%20UR2;old=0;orb=1;cov=0;log=0;c ad=0#orb
https://ssd.jpl.nasa.gov/
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