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Schwassmann-Wachmann 73P; Here's what I learned about its trajectory
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Anonymous Coward
User ID: 75343
4/25/2006 5:34 PM | | Re: Schwassmann-Wachmann 73P; Here's what I learned about its trajectory | Quote |
"It appears that Earth never gets hit by any fragments from space. That's really lucky. So apparently on that basis we have nothing whatsoever to be concerned about."
Some stats, calcs and more
Simulation of Asteroid/Comet Impacts with Earth
[link to www4.tpgi.com.au]
Related
Simulating Armageddon on Your PC: Asteroid Impacts with Earth
[link to www.space.com] |
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Boo
User ID: 76560
4/25/2006 5:34 PM | | Re: Schwassmann-Wachmann 73P; Here's what I learned about its trajectory | Quote |
We only see a small percentage of the rocks that are flying around out there. I have trouble believing from the link provided by Urantia that a rock the size of a truck would do that much damage. Some chunks that size hit Australia within the last couple of years. |
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Anonymous Coward
User ID: 84505
4/25/2006 5:43 PM | | Re: Schwassmann-Wachmann 73P; Here's what I learned about its trajectory | Quote |
the urantia garbage was unsolicited
this is SO's thread |
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Anonymous Coward
User ID: 82844
4/25/2006 5:44 PM | |
Urantia
User ID: 85587
4/25/2006 5:44 PM | | Re: Schwassmann-Wachmann 73P; Here's what I learned about its trajectory | Quote |
Sorry, one last post")
I thought this was interesting (it is factual) so I guess it is science related to this thread.
Wachmann (der)
n. guard, watchman, one who performs a lookout, watch, guardian, security guard |
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Urantia
User ID: 85587
4/25/2006 5:46 PM | | Re: Schwassmann-Wachmann 73P; Here's what I learned about its trajectory | Quote |
Garbage? Wow! I thought that is what forums were all about......sharing views? |
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Thomas Dolby 5.5
User ID: 37525
4/25/2006 5:46 PM | | Re: Schwassmann-Wachmann 73P; Here's what I learned about its trajectory | Quote |
nothing like this has occured in earth's orbit in many centuries
it's hard to say scientifically WHAT will happen until after the fact
That's true.
"Some dance to remember, some dance to forget"
"Don't worry, everything is going to be Ok" |
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Anonymous Coward
User ID: 84505
4/25/2006 5:47 PM | | Re: Schwassmann-Wachmann 73P; Here's what I learned about its trajectory | Quote |
why don't you start your own urantia prophecy thread? |
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Anonymous Coward
User ID: 84505
4/25/2006 5:47 PM | | Re: Schwassmann-Wachmann 73P; Here's what I learned about its trajectory | Quote |
it still doesn't hurt to do some calculations |
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Anonymous Coward
User ID: 10264
4/25/2006 5:47 PM | | Re: Schwassmann-Wachmann 73P; Here's what I learned about its trajectory | Quote |
Ok, I don't know if this was already mentioned but are these chunks supposed to hit north or south of the equator and what east coast cities are to be affected by this 200 meter wave?
I would imagine the entire east coast would be wiped out especially Florida.
The part I think is a little far fetched is the triggering of any underwater volcanos. |
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Urantia
User ID: 85587
4/25/2006 5:48 PM | | Re: Schwassmann-Wachmann 73P; Here's what I learned about its trajectory | Quote |
Don't know any Urantia Prophecies? Sorry! |
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Urantia
User ID: 85587
4/25/2006 5:50 PM | | Re: Schwassmann-Wachmann 73P; Here's what I learned about its trajectory | Quote |
Aloha, sorry if I caused trouble, you have been warned!!!!!!!!!!!!!!1 |
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Anonymous Coward
User ID: 84967
4/25/2006 5:54 PM | | Re: Schwassmann-Wachmann 73P; Here's what I learned about its trajectory | Quote |
10264: "I would imagine the entire east coast would be wiped out especially Florida."
It is highly unlikely that there will be any really devastating effects; the enormous chunks (i.e. the ones that are visible right now) will all be too far away. Looks quite possible that we will be struck by a lot of dust-particle-sized fragments and maybe some bigger chunks but even so *probably* nothing to be overly concerned about
the uncertainty comes when you think about how many fragments the size of houses there might be ... coz they wouldn't be visible yet (not big enough) but would be big enough to do some damage |
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Anonymous Coward
User ID: 85649
4/25/2006 5:59 PM | | Re: Schwassmann-Wachmann 73P; Here's what I learned about its trajectory | Quote |
Object 2004XP14 orbit: [link to neo.jpl.nasa.gov]
Forward to July 3, 2006 when it comes within .0034 AU |
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skycat
User ID: 7670
4/25/2006 6:00 PM | | Re: Schwassmann-Wachmann 73P; Here's what I learned about its trajectory | Quote |
If you break a magnet apart the fragments repell each other so the "electric comet" would tend to form a "shotgun" shape! |
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Anonymous Coward
User ID: 84505
4/25/2006 6:00 PM | | Re: Schwassmann-Wachmann 73P; Here's what I learned about its trajectory | Quote |
you are showing disrespect when you post urantia prophecies on a scientific thread |
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Anonymous Coward
User ID: 84505
4/25/2006 6:02 PM | | Re: Schwassmann-Wachmann 73P; Here's what I learned about its trajectory | Quote |
check out the pics of comet linear after it broke up
the pieces are quite scattered
[link to science.nasa.gov] |
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Halcyon Dayz
User ID: 84549
4/25/2006 6:02 PM
 | | Re: Schwassmann-Wachmann 73P; Here's what I learned about its trajectory | Quote |
Comets aren't magnets.
An idea is not responsible for the people who believe in it. - Don Marquis
To defy the authority of empirical evidence is to disqualify oneself as someone worthy of critical engagement in a dialogue. - Tenzin Gyatso
Entia non sunt multiplicanda praeter necessitatem - William of Ockham
The truth maybe out there, but lies are inside your head - Terry Pratchett
HALCYON DAYS STOP BEING A DIPSHIT ALL YOUR LIFE YOU MORON - Anonymous Coward |
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Anonymous Coward
User ID: 85649
4/25/2006 6:03 PM | | Re: Schwassmann-Wachmann 73P; Here's what I learned about its trajectory | Quote |
Object 2006 GY2: [link to neo.jpl.nasa.gov]
May 16 comes within .0172 AU |
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Anonymous Coward
User ID: 84505
4/25/2006 6:04 PM | | Re: Schwassmann-Wachmann 73P; Here's what I learned about its trajectory | Quote |
August 7, 2000 -- To the surprise and delight of astronomers, NASA's Hubble Space Telescope has discovered a small armada of "mini-comets" left behind by what seemed to be a total disintegration of the explosive comet LINEAR.
Hubble's powerful vision has settled the fate of the mysteriously-vanished solid nucleus of the comet, which disappeared from the view of Earth-bound telescopes following its passage around the Sun on July 26
Above: (lower right) This Hubble picture of comet LINEAR's core shows that the icy nucleus has been reduced to a shower of glowing "mini-comets." (upper left) A ground-based telescopic view (2.2-meter telescope) of Comet LINEAR taken at nearly the same time as the Hubble observations shows a diffuse elongated cloud of debris without any visible nucleus. The inset box corresponds to the HST field of view.
large pic of fragments from linear:
[link to imgsrc.hubblesite.org] |
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tomek
User ID: 85651
4/25/2006 6:05 PM | | Re: Schwassmann-Wachmann 73P; Here's what I learned about its trajectory | Quote |
On the night of April 23 to 24, ESO's Very Large Telescope observed fragment B of the comet Schwassmann-Wachmann 3 that had split a few days earlier.
[link to www.eso.org] |
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Anonymous Coward
User ID: 84505
4/25/2006 6:06 PM | | Re: Schwassmann-Wachmann 73P; Here's what I learned about its trajectory | Quote |
[link to imgsrc.hubblesite.org]
contrast photos of comet linear vs the fragments remaining after it broke up |
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Atma
User ID: 74028
4/25/2006 6:08 PM | | Re: Schwassmann-Wachmann 73P; Here's what I learned about its trajectory | Quote |
"check out the pics of comet linear"
Thanks for the link AC. That's pretty cool.
"Some astronomers find it hard to imagine how an object the size of a mountain could totally disintegrate in only two weeks. "Actually, I would have been more amazed if Hubble saw no pieces," adds co-investigator Carey Lisse, of STScI. "The comet's breakup was too violent and fast for it to completely vaporize. How do you pulverize something the size of a mountain?"" |
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Anonymous Coward
User ID: 85649
4/25/2006 6:08 PM | | Re: Schwassmann-Wachmann 73P; Here's what I learned about its trajectory | Quote |
When you get through worrying about Schwassman-Wachmann, here is a list of more objects: [link to cfa-www.harvard.edu] |
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Anonymous Coward
User ID: 84505
4/25/2006 6:08 PM | | Re: Schwassmann-Wachmann 73P; Here's what I learned about its trajectory | Quote |
they thought it was just dust (linear) until they captured that photo of the fragments |
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Anonymous Coward
User ID: 84505
4/25/2006 6:09 PM | | Re: Schwassmann-Wachmann 73P; Here's what I learned about its trajectory | Quote |
73p is different because it's close to 100 fragments now in the same orbit path
all of those others on the list are on object per orbit |
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Atma
User ID: 74028
4/25/2006 6:10 PM | | Re: Schwassmann-Wachmann 73P; Here's what I learned about its trajectory | Quote |
"73p is different because it's close to 100 fragments now"
Link for 100 fragments? |
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Halcyon Dayz
User ID: 84549
4/25/2006 6:16 PM
| | Re: Schwassmann-Wachmann 73P; Here's what I learned about its trajectory | Quote |
"781 known Potentially Hazardous Asteroids."
[link to neo.jpl.nasa.gov]
An idea is not responsible for the people who believe in it. - Don Marquis
To defy the authority of empirical evidence is to disqualify oneself as someone worthy of critical engagement in a dialogue. - Tenzin Gyatso
Entia non sunt multiplicanda praeter necessitatem - William of Ockham
The truth maybe out there, but lies are inside your head - Terry Pratchett
HALCYON DAYS STOP BEING A DIPSHIT ALL YOUR LIFE YOU MORON - Anonymous Coward |
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Anonymous Coward
User ID: 85649
4/25/2006 6:22 PM | | Re: Schwassmann-Wachmann 73P; Here's what I learned about its trajectory | Quote |
We don't get hit? Here are some impact crater pictures: [link to miac.uqac.ca]
Look at this image: [link to www.geotoursafrica.com]
Throughout earth history, the earth’s surface has been bombarded with meteorites from outer space. There are about 150 known impact sites in the world, of which only 5 are accessible. The Tswaing meteorite crater is one of the best-preserved craters on earth and owes its existence to a meteorite impact which occurred about 220 000 years ago.
The Tswaing crater, situated 40 kilometres north-northwest of Pretoria, is strikingly similar in size and structure to the meteorite crater in Arizona which was formed approximately 50, 000 years ago. It has a diameter of approximately 1 kilometre and has salt deposits and a highly saline pond in its centre, which gave rise to the name Tswaing (Tswaing means “place of salt”). The excellently preserved crater rim is elevated 60 metres above the surrounding plains and has a maximum elevation of 119 metres above the rather flat crater floor. This is an ideal educational trip for people of all ages and backgrounds, and is certainly not only for specialists! In the crater museum, we give you an introduction to meteorites, their origin and their impact on the evolution of life. We then go on a two to three-hour bush walk up to and through the crater. We inspect various rock types, look at plants and birds and the archaeological evidence of visitors to the crater going back to the stone age, as well as exploring evidence that Tswaing is a meteorite impact site. |
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Atma
User ID: 74028
4/25/2006 6:22 PM | | Re: Schwassmann-Wachmann 73P; Here's what I learned about its trajectory | Quote |
As of April 23, 2006, 4030 Near-Earth objects have been discovered. 832 of these NEOs are asteroids with a diameter of approximately 1 kilometer or larger. Also, 768 of these NEOs have been classified as Potentially Hazardous Asteroids (PHAs). [link to neo.jpl.nasa.gov]
And God only knows how many times those numbers haven't been discovered. |
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