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An Asteroid Passed By Earth At About Half the Distance Between Our Planet and Moon (smithsonianmag.com)
On Monday at 7:47 A.M. EST, an asteroid thought to be between 36 and 111 feet wide passed roughly 120,000 miles from Earth -- and astronomers didn't spot it until Saturday. Smithsonian reports: According to astronomer Eric Edelman at the Slooh Observatory, 2017 AG13 is an Aten asteroid, or a space rock with an orbital distance from the sun similar to that of Earth. AG13 also has a particularly elliptical orbit, which means that as it circles the sun it also crosses through the orbits of both Venus and Earth. Lucky for us, 2017 AG13 wasn't a planet killer; according to Wall, the asteroid was in the size range of the space rock that exploded in Earth's atmosphere over Chelyabinsk, Russia, in February, 2013. According to Deborah Byrd at EarthSky, that meteor exploded 12 miles in the atmosphere, releasing 30 times the energy of the Hiroshima nuclear bomb. Not only did it break windows in six cities, it also sent 1,500 people to the hospital. That meteor also came out of the blue, and researchers are still trying to figure out its orbit and track down its origins. While 2017 AG13 would have caused minor damage if it hit Earth, the close call highlights the dangers of asteroids.
Once again inanimate rock you have failed us you helped out the dinosaurs god really does hate us
"SPACEBAAAALL!"
Anons need not reply. Questions end with a question mark.
>> meteor also came out of the blue
There is no blue...in SPAAACE!
>> a space rock with an orbital distance from the sun similar to that of Earth
Presumably, that's why it almost hit us.
In what world does 30 times the energy of Hiroshima qualify as "minor damage"?
Asteroids are a Chinese hoax.
If it didn't hit the Earth, how are we more or less lucky that it wasn't a planet killer?
36 feet wide, 120,000 miles ?!
GROW UP.
> the close call highlights the dangers of asteroids.
One: Nothing happened. So how dangerous was this? If it HAD hit, maybe several hundred people would've visited hospitals and some windows woudl have had to be replaced.
Two: The danger is teaching people "an asteroid killed the dinosaurs, what if an asteroid kills us?". That is dangerous. A really BIG asteroid killed the dinosaurs. These small ones are nothing to worry about. Let's assume this thing is aiming for earth, but hits randomly somewhere inside the moon's orbit. The earth has a radius of about 6000km, the moon's orbit about 300000km. A ratio of 50, so the chances of hitting earth are 1/2500. The people making a stir about these things are the ones that stand to gain employment from scaring the general public about this.
Nope - common folk will say that after one hit, the odds of another hit is vanishingly small, so why bother doing anything. In actuality the hits are statistically independent, but try to explain that on family TV.
Carrington event.
Supervolcano.
Asteroid impact.
Widespread cretinism.
Take your pick.
"The solstice is a moment when the changing seasons and celestial rhythms of the planet are in unison as the northern latitudes acknowledge the shortest day of the year while the southern latitudes mark the calendarâ(TM)s march forward from the longest. Slooh will celebrate this global phenomenon by featuring live views of the Sun from both hemispheres as a means of fostering our deep and primal connection to Earth and sky.
Do they also feature live views of Wiccans dancing around Stonehenge at the Equinoxes?
"I don't know, therefore Aliens" Wafflebox1
Space rocks must be outlawed!
Rick B.
Were too busy trying to make the Trump/Russia connection,
AG13 just snuck up on them.
"Will someone bring Eric some fresh knickers, he's stinking up the place!"
Rick B.
Given the US, I'd say it would serve no good use but to get people to fall onto their knees, pray and essentially do nothing useful.
We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
A common measure of the "size" of an orbit is the semimajor axis -- which is half the length of the ellipse. You can have an orbit with a semimajor axis intermediate between those of Earth and Venus that can intersect both of them at various times, if its eccentricity is big enough.
Every gravitational interaction between two bodies alters both their orbits, to a degree that depends on their relative masses and on how close the approach is. This one's orbit will almost certainly change significantly -- hell, even Earth's orbit will change, but by an amount too small to observe.
In the sense that when a big one eventually hits, we'll all vanish.
I volunteer Washington DC with all of congress and the pres and vice-pres in town when it happens
"get people to fall onto their knees, pray and essentially do nothing useful."
Redundant
remember this is the real scale of the Earth to the moon.
http://colchrishadfield.tumblr.com/image/57696912776
Aten asteroids are defined by having the semi-major axis of their elliptical orbit be less than one AU. So your guess about 'mean orbit' is pretty close.
A list of known Aten asteroids doesn't seem to be updated with this one yet.
Should've written "generally" instead of "essentially", agreed.
We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
*sigh*. 2016 will go down in history as the year every single campaign, including Giant Meteor 2016, failed us all.
There's more than one crazy born every minute...
He produced at least one fraudulent pdf of one...with 9 layers
"I'll pray for you" is the same as saying "I want to look like I care, but I don't care enough to actually do anything useful to help and can't admit there's nothing I can do"
should be "help and/or can't"
I believe GP was puckishly alluding to the fact a "near-miss" by definition implies an instantaneous orbital distance approximately equal to that of the Earth.
As for near Earth asteroid orbits being perturbed -- sure. It's believed that most of them will remain in their orbits for only a few million years before they are ejected or hit something.
But it may clarify things to note that asteroids routinely strike the Earth's atmosphere. Automated systems on any night might pick up a dozen meteors an hour you'd be able to see -- if you happen to be looking in the right direction and you don't blink. The catch is most of the asteroids that create these meteors are tiny -- grains of dust or pea sized grave. Around 100 tons of meteors fall on the Earth every day, mostly dust particles.
From an orbital mechanics standpoint there's no real difference between an asteroid the size of a grain of rice and a one the size of a school bus. So probably the best way to think of it is that asteroid strikes are a routine event that happen every few minutes. It's just that from a public safety standpoint we're only interested in unusually large specimens.
Post may contain irony: discontinue use if experiencing mood swings, nausea or elevated blood pressure.
I volunteer Washington DC with all of congress and the pres and vice-pres in town when it happens
You figure President Rex Tillerson will sort out the problem?
(Sorry, but don't recall where I got the following, but it wasn't that long ago.): Why care about asteroids possibly hitting the earth? The odds in your children's lifetime: "City-killer"-sized - 30% (Larger than the one which hit Russia in 1908.) (There are about a million near-earth asteroids out there about this size. We've located about 10,000 of them. "World War"-sized - 1% (The chance of your house burning down is less than 1% Do you buy insurance for that?). "End-of-us-all"-sized - .001%
What is the solution? Detect ... and deflect.
On Feb. 15, 2013 a small asteroid hit Siberia. It was about 50 feet in diameter. Explosive effect was about 30 X the force of the Hiroshima atomic bomb.
"I'll pray for you" is the same as saying "I want to look like I care, but I don't care enough to actually do anything useful to help and can't admit there's nothing I can do"
I always figured it was a passive-aggresive way of saying "I'm holier-than-thou."
That too ;)
Other than it not being true as a legit birth certificate was produced, riddle me this Batman...lets say he was born in Kenya, is a muslim, and wants to take all of our guns.
He had 8 years in office. What exactly did he do that makes any of that relevant?
(...waiting for the blurry obfuscated implausible answer, like "he destroyed the economy" when he produced the a huge economic recovery or "he cozied up with Isis" when in fact he bombed the crap out of them, or "he was too soft on our enemies" when he came into office with the vast majority of voters saying they wanted to get out of the two wars we were already in and not start another...)
I think that proctologists should be renamed astronauts.
anything can happen after Jan 19...
The 'document' regarding Mr Trump has more validity than Mr Trump's claims about Mr Obama's nationality and birthplace.
New Zealanders are well balanced with a chip on each shoulder. One represents Australia, the other the rest of the world
He let Russia take Crimea?
You asked, just figured I would deliver.
APK likes to ask for responses to the same things over and over. Maybe he just likes the responses?
APK, get over yourself. You are the only one who cares.
APK likes to ask for responses to the same things over and over. Maybe he just likes the responses?
The YOUNG Space Pope! Starring Jude Lawe! Coming soon on HBO! With Tit-Tays!
Pussy? Really? I wasn't the one who backed down last time. Keep it coming, you only prove your mental illness.
Also, it is kind of funny that you post links to where I totally thrashed you. You really need to check yourself, you always declare victory before even making a point. The only person who thinks you win arguments is you, posting as if you are an interested third party, as if that isn't obvious.
APK likes to ask for responses to the same things over and over. Maybe he just likes the responses?
You mean like you using a bridge? Who doesn't get computing? Also, your comment about using group policy to distribute hosts files as if it is a good solution to the problem?
Yeah, I never get the best of you, except in every conversation we have.
APK likes to ask for responses to the same things over and over. Maybe he just likes the responses?
Um, if you are using a bridged router, you have about the most insecure network I have heard of. Did you build Hillary's email server too?
I also forgot about your since recanted DNS BL mistake, I also pointed that one out to you, and you corrected your list to reflect the change.
Also, I have to ask, why do you keep mentioning a book name as if it is some kind of obscure tome?
https://www.google.com/search?...
APK likes to ask for responses to the same things over and over. Maybe he just likes the responses?
Sure they can...if they are morons who don't know how DNS works, and is REQUIRED for Active Directory already. I can see you haven't run any networks, it was already obvious from your bridge comments, and the fact that you don't even understand what a bridge is. But this seals the deal.
I also have to ask...do you often forget previous conversations? I didn't pull that group policy comment out of my ass, it was a response you gave me as to why you feel DNS shouldn't host the entries from your hosts files, even in a domain environment, where DNS is required for the proper functioning of the network. Perhaps if you actually bothered to have an account I could point it out to you, instead you hide behind AC so that your previous comments can't be used against you. You have proven yourself to be incompetent with networks, maybe you are afraid of further incompetence being demonstrated as well?
APK likes to ask for responses to the same things over and over. Maybe he just likes the responses?
If you want people to remind you of things you have said, create an account and use it. Until then, you are asking for the needle you threw in a haystack. After all, you are one of the most prolific posters on this board.
Also, if you have this much trouble remembering conversations you have participated in, perhaps you need to be tested for alzheimer's.
APK likes to ask for responses to the same things over and over. Maybe he just likes the responses?
You are simultaneously posting anonymously to avoid being quoted, and asking to be quoted. Perhaps you need to go back to high school, yous logic is terrible.
APK likes to ask for responses to the same things over and over. Maybe he just likes the responses?
Login and comment, then you can request people to quote your old comments.
It just makes me so warm and fuzzy when you show me this much attention. It is so cute that you think saying the same thing over and over again will change the response though, it is almost like you don't understand how conversations work.
APK likes to ask for responses to the same things over and over. Maybe he just likes the responses?
Funny, but you are the one who is claiming to not remember having conversations you have had with me previously and asking for proof. This would be an indication of previously undiagnosed alzheimer's, which would indeed be a brain defect.
When you start logging in to make comments, you can ask people to provide you with proof, until then your use of AC is intentionally hiding your posting history. You know this, and have even commented on it yourself previously when challenged about not logging in. The only conclusion I can therefore come to is that this is an attempt to lie and deceive. Perhaps you should think these things through before you, yet again, post the same damn argument I have no responded to 4 times.
APK likes to ask for responses to the same things over and over. Maybe he just likes the responses?
Do you honestly think my answer will change significantly the more you post the exact same request? Who do you think is being made into a fool here?
Ask again, pretty please.
APK likes to ask for responses to the same things over and over. Maybe he just likes the responses?
Show us.
No.
APK likes to ask for responses to the same things over and over. Maybe he just likes the responses?
It appears that I am still here. Am I running on a treadmill? You are the one who hides your posts behind AC, so wouldn't you be the one running and hiding?
Show us.
No, you know that I can't, which is intentional on your part. You hide, not I.
APK likes to ask for responses to the same things over and over. Maybe he just likes the responses?
Funny, as all you have exposed is yourself, and no one wants to see that.
APK likes to ask for responses to the same things over and over. Maybe he just likes the responses?
Aww, did you want to send me flowers to express your undying love for me? Grow up APK, I am younger than you, but I know better than to use my real name online. The only reason it burns you is that you want to stalk and harass me in person. I don't need to give my real name, as it has no bearing on the conversation, and won't help you to disprove anything I have typed.
APK likes to ask for responses to the same things over and over. Maybe he just likes the responses?