Author Topic: Fireballs, comets, meteorites, meteors and asteroids  (Read 55990 times)

MadMax

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #390 on: April 15, 2017, 06:07:09 AM »
82,000 mph Fireball Blazes through S.C. Sky | A true "High Roller"

https://www.youtube.com/watch?v=k9uN_eoWCcY

Published on April 14, 2017

April 14, 2017: A high altitude, what 'appeared' to be a slow moving fireball was witnessed by probably thousands of people, reported by 417 people from 9 different states at the American Meteor Society. How fast was it moving? We calculate in the video based off of the overall average given by the fine folks that took the time to share their experience with the AMS. (report any meteors you see at their website, its very user friendly and your input is important to understanding the event) link below...

Max.
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MadMax

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #391 on: April 18, 2017, 02:23:35 AM »
Bright meteor with house-shaking sound reported over Queensland, Australia!

https://www.sott.net/article/348402-Bright-meteor-with-house-shaking-sound-reported-over-Queensland-Australia

THERE have been reports of a house-shaking thud in Killarney after the meteorite was spotted in our skies last night.

Our sister paper, the Warwick Daily News reported the buzz on social media: Brigitte Jones said, "I felt it out here, the house shook."

Madeline Wilkins posted "I'm in Toowoomba and saw a burning light in the sky maybe a meteorite, heading that direction just before I saw this post... Maybe related?"

Killarney resident Krissy Bloomfield said, "On Brosnan Rd kids saw what we thought shooting star just before the bang."

Some residents reported thinking the noise was thunder or fireworks.

Louise Reed from the Queen Mary Falls Caravan Park posted, "We heard it up here too. It looked like a shooting star right before it and then bang."

And this from Krystal N Lillee Cook, "We heard it in oak street...was really loud like a big crack of thunder."

Max.

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MadMax

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #392 on: April 20, 2017, 03:43:41 PM »
Good WSO Video ..

WSO - SPECIAL - Near Earth Objects Dramatically Rise in Number and are COMING CLOSER

https://www.youtube.com/watch?v=68gg_wlfvNA

Published on Apr 20, 2017
Using JPL Data, we have been able to uncover that over 93% of discovered objects in NEO have been discovered in 2016 and 2017..

Max.

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ilinda

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #393 on: April 21, 2017, 05:20:13 PM »
Haven't viewed the video yet, but your post is quite significant! 

MadMax

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #394 on: April 29, 2017, 03:25:37 PM »
Although these objects passed by several months ago it’s a reminder of what “close calls” we have been having recently (and getting closer all the time)..

Earth Narrowly Dodges Three Large Asteroids

https://sputniknews.com/science/201701311050178574-asteroid-impact-earth-dodges-three/

A car-sized asteroid narrowly missed the Earth on Monday, January 30, six days after another asteroid the size of a house had a similar near-miss, and ten days after a third passed by that was about the size of a killer whale. All three asteroids were detected only shortly before they passed their closest point to Earth.

Asteroid 2017 BH30 zipped past the Earth just 32,200 miles away at its closest approach. By comparison, the Moon is never closer than 225,000 miles from Earth. BH30 was estimated to be 19 feet across, according to NASA's Jet Propulsion Laboratory.

The week prior, on January 25, 2017 AG13, an even larger asteroid, made a pass across the sky. While it did not come as close as BH30, at a little over 110,000 miles away, it was much larger, at some 50-110 feet across. That would make it at least as big as the Chelyabinsk meteor that caused over $30 million of damage when it exploded in midair over Russia in 2013.

On January 20, asteroid 2017 BX, between 10-40 feet across, blew by just 16,252 miles from Earth. That makes three Near Earth Object (NEO) close calls in just ten days, all noticed only days before they made their closest pass.

The next close pass identified by astronomers is 2012 TC4, a known asteroid 33-100 feet across, which will come within 13,200 miles of Earth during its expected October flyby.

"The larger these things are, the easier they are to spot. It's the little ones that we tend to not really find. And when we do, it's a little too late," said Antonio Paris, astronomy expert with Tampa's Museum of Science and Industry.

In late 2016, NASA senior scientist Joseph Nuth said that if a large meteor were to be found on a collision course with Earth, "there's not a hell of a lot we can do about it." In response to his comments, former President Barack Obama commissioned a White House report to improve international preparedness for such an event (Yea all the Elites are heading underground as Marshall always says the reset of us are “steerage”..)

Max.
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ilinda

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #395 on: May 01, 2017, 02:02:35 PM »
Three in January, and one expected in October, but no doubt there is a bunch of (smaller?) ones to be experienced between now and October. 

MadMax

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #396 on: May 01, 2017, 05:02:29 PM »
Yes and the ones that they are not telling us about are the ones that are most concerning .. :(

Max.
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MadMax

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #397 on: May 04, 2017, 06:49:07 AM »
Another close call on 5/2..

Max.
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MadMax

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #398 on: May 07, 2017, 04:20:58 AM »
Apocalyptic Fireball Caught on Videos From Different Locations

http://beforeitsnews.com/paranormal/2017/05/apocalyptic-fireball-caught-on-videos-from-different-locations-video-2523847.html

The sight of a flaming ball falling from the sky has made some viewers baffled and frightened. Two videos recorded from two separate places caught an apparent the same sight of what seemed like a massive fireball.

Taken in Louisiana on April 29, the first video shows what looks like a falling object from the sky having a huge trail of smoke behind.

The second video, uploaded on the same night, was recorded from the neighbouring state of Texas. It also shows a large UFO falling to the ground with a bright reddish colour around it and a huge trail behind.

Both videos show an object, seemingly burning, falling out of the sky or possibly a bomb coming down to the Earth’s surface.

Some UFO hunters suggest it could be an unusual weather phenomenon or a downed satellite.

Other commenters joked about the two videos saying they show Superman from Krypton coming down to Earth.

Still others described the incident as alarming as it involved an apocalyptic fireball streaking across the sky above the two states in the U.S. As of posting time, no official explanation yet as to what caused such a thing to happen. One viewer commented that how come the thing is considered apocalyptic as it never made a big headline, just moments after both videos began circulating online (Ya just trying to keep such things hidden from the public).


Max.


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ilinda

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #399 on: May 08, 2017, 05:35:52 PM »
If you use your imagination a bit--doesn't take much--the one video'd in Louisiana could resemble a chemtrail sprayer that was just shot down.  Check out the side-by-side "points of combustion" at the leading edge.  Some of those sprayers spray from both sides. 

Just sayin'.

MadMax

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #400 on: May 25, 2017, 01:10:52 PM »
It’s the ones they aren’t telling us about that we need to worry about ..

Five asteroids will cruise by Earth in the next year, and one is coming very close..

https://www.sott.net/article/351985-Five-asteroids-will-cruise-by-Earth-in-the-next-year-and-one-is-coming-very-close

There's so many cool things to see out in space — from gorgeous views of Jupiter to stunning glimpses of Saturn, and a star that might have aliens hanging out nearby — that it's easy to forget that it's actually a pretty hostile place. We're reminded of that whenever NASA alerts the world that an asteroid is making a close appearance, and a scientists with the Jet Propulsion Laboratory just took some time to break down the next five asteroid flybys that we should all keep our eyes on, including one that might be too close for comfort.

The handful of asteroids, which are thought to be as small as 8 meters in diameter to as large as 90 meters, will all pass within five lunar distances. One lunar distance is the space between the Earth and our moon, or about 238,900 miles. That might seem like a pretty comfortable gap, but in terms of the vastness of space, a rock jetting past our planet at such a distance is a pretty close shave.

The next asteroid encounter will be the closest pass of them all, with asteroid "2012 TC4" coming within 0.15 lunar distances of Earth on October 12th, 2017. That's a distance of just over 35,000 miles, which is an extremely close pass, but the asteroid is only thought to be 12 to 27 meters in diameter, making the event slightly less worrisome (Really??).

Max.

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Yowbarb

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #401 on: May 27, 2017, 06:41:06 AM »
One thing I have observed over the past dozen years, objects sometimes do not get discovered until it is time to whiz past. Once or twice in 2005 I was watching the upcoming and past close approaches closely. A fairly large close thing came and went. It was not listed until it went.
It happens. We can be sure of one fact:
If PX is really coming to its closest approach it will being with it a group of objects.

For right now I would not be too concerned about objects listed at 1 lunar distance or more...
Looking ahead:
  https://phys.org/news/2015-04-asteroid-tc4-earth-october.html

Will asteroid 2012 TC4 hit Earth in October 2017?

On Oct. 12, 2017, the asteroid 2012 TC4 is slated to whizz by Earth dangerously close. The exact distance of its closest approach is uncertain, as well as its size. Based on observations in October 2012 when the space rock missed our planet, astronomers estimate that its size could vary from 12 to 40 meters. The meteor that exploded over the Russian city of Chelyabinsk in February 2013, injuring 1,500 people and damaging over 7,000 buildings, was about 20 meters wide. Thus, the impact of 2012 TC4 could be even more devastating. "It is something to keep an eye on," Judit Györgyey-Ries, astronomer at the University of Texas' McDonald Observatory, told astrowatch.net. "We could see an airburst maybe broken windows, depending on where it hits."

The house-sized asteroid was discovered on Oct. 4, 2012 by the Pan-STARRS observatory in Hawaii. Week later, it gave Earth a close shave when it passed the planet at the distance of 0.247 LD (lunar distance), or 94,800 km. 2012 TC4 is an elongated and rapidly rotating object and has been known to make many close approaches to Earth in the past. Now, the scientists try to determine the exact path of 2017 fly-by and the probability of a possible impact.
"It has a 0.00055% cumulative chance that it will hit," Györgyey-Ries said. "The fact that the MOID [minimum orbit intersection distance] is only 0.079 LD flags it as a possible impactor. However it is just the smallest possible distance between the orbits."
"There is one in a million chance that it could hit us," Detlef Koschny, head of the Near-Earth Object (NEO) Segment in the Space Situational Awareness (SSA) programme office at ESA, told astrowatch.net. He also tried to estimate the exact size of the celestial body. "The size was estimated from the brightness, but we don't know the reflectivity. So it could be smaller or larger, assume from 10 m to 40 m. A 40 m iron object would go through the atmosphere and make a crater; a 10 m rocky object would be hardly noticed."
Makoto Yoshikawa of the Japanese Aerospace Exploration Agency (JAXA), member of NEOs Division at the International Astronomical Union (IAU) is convinced that the asteroid poses no danger to Earth. "The distance is very small. But this distance does not mean the collision," he said.
NASA's Asteroid Watch has assured there is no chance this asteroid will hit our planet, but Györgyey-Ries admits more observations are needed to mitigate the uncertainties.

"Although it has a large uncertainty along the orbit, it is much less than the radial uncertainty, so it just changes the time of the closest flyby. I would say based on this, that there is no chance of impact in 2017, but more observations could help to reduce the uncertainties," she said.
Koschny is also aware of the incertitude. Speaking of the asteroid's size and orbital characteristics, he indicated that "certain items have large uncertainties, in particular the size." He noted that if it's a rocky asteroid and if it hit, the effects would be similar to the Chelyabinsk impact.
As of Apr. 12, 2015, there are 1572 potentially hazardous asteroids (PHA) detected. None of the known PHAs is on a collision course with our planet, although astronomers are finding new ones all the time.
 
Read more at: https://phys.org/news/2015-04-asteroid-tc4-earth-october.html#jCp


MadMax

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #402 on: May 31, 2017, 02:41:56 AM »
Rare daytime meteor photographed at Namadgi National Park, Australia!

https://www.sott.net/article/352504-Rare-daytime-meteor-photographed-at-Namadgi-National-Park-Australia

was an uncanny case of right time and right place when photographer Ari Rex snapped this streaking ball of light at the Namadgi National Park.

Mr Rex was teaching a photography workshop at the Orroral Homestead when he unexpectedly captured a meteor hurtling past Earth.

"Last Friday, during the new moon, I went to Namadgi National Park to teach an advanced Milky Way photography workshop," he said.

"It's very dark out there when there is no moon so it makes it perfect for photographing the Milky Way, especially now in winter."

Although he expected to snap some stellar shots of the twilight sky, he was completely surprised by the photos when he looked back at them.

"I was lucky enough to capture this meteor in my frame. This is a rare phenomenon," he said.

"Usually you see them at night. But you typically never see them during the day. (These are not typical times)..

"According to some quick calculations I did - considering the shutter speed of the shot - I found that the meteor was travelling at least 60,000 kilometres per hour."

Max
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MadMax

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #403 on: June 07, 2017, 04:27:30 PM »
Note the timing of this!!

Czech scientists say hidden asteroids could pose a threat to Earth!!

http://www.upi.com/Science_News/2017/06/06/Czech-scientists-say-hidden-asteroids-could-pose-a-threat-to-Earth/1271496773133/

June 6 (UPI) -- A team of Czech scientists say they have discovered a new branch of meteors belonging to the meteor stream known as the Taurus -- a branch featuring asteroids that could pose a serious threat to Earth in the near future.

In a new study, researchers describe the branch as a "real source of potentially hazardous objects, which can be large enough to cause significant regional or even continental damage on the Earth.”


Researchers believe the meteor stream is made up of fragments left behind by the breakup of at least one large comet some 30,000 years ago.

The newly discovered branch belongs to the Southern Taurids, which pepper Earth's skies with shooting stars and fireballs each fall, between October 25 and November 17.

Taurid meteor showers are reliable but not usually prolific. However, some years feature enhanced meteor activity. In 2015, the Southern Taurids provided an unusually large amount of extremely bright fireballs.

Analysis of the new branch revealed the presence of at least two asteroids measuring between 650 and 100 feet in diameter. The authors of the new study hypothesize that the branch likely hosts even larger asteroids.

But one needn't travel back millennia to witness the dangers of the Taurids. Just over a century ago, in 1908, a 150-foot-wide Taurid meteor exploded in the sky above Siberia, releasing a force the equivalent of a 20-megaton nuclear bomb. The explosion leveled 400 square miles of forest.

Max.
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MadMax

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #404 on: June 08, 2017, 03:47:30 PM »
Possible meteorite impact in Jaipur, India!

https://www.sott.net/article/353194-Possible-meteorite-impact-in-Jaipur-India

Monday night turned into a nightmarish experience for the people of Mukundpura village when a mysterious object resembling a fireball fell on the farm of Banshi Bagha. Scared and skeptical of the object, people spent the night fearing an explosion. The area is situated on the outskirts of city of Jaipur

        Locals spotted the object in the morning and informed us. It seems the object fell at a great speed as it has created a small crater on the ground in Mukundpura village.

He further added that the Geological Survey of India and Forensic Science Laboratory officials have been informed about the occurrence and asked to examine the stone weighing around 4 kg.

Max
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