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Author Topic: Fireballs, comets, meteorites, meteors and asteroids  (Read 188842 times)

Yowbarb

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #675 on: September 10, 2019, 09:58:37 PM »
That is probably how it will happen some day--an unnoticed space object is hurtling toward Earth, and is only observed a few hours prior to impact.  In that instance, the most likely scenario will be that only a handful of insiders will be in the know, and even at that, they still might not have time to predict, and move to a "safer" location.

It may be that some who are in the know can board a jet and get to a presumably safer location...
Seems that astronomers would  have a contingency plan for such an event. This is not to say they will arrive safely anywhere...  Hopefully they will be safe and hopefully the majority of the human race will get through it...

MadMax

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #676 on: September 11, 2019, 03:39:40 PM »
Another "Close-Call".. Sept. 7th ..

ilinda

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #677 on: September 11, 2019, 07:19:49 PM »
Only half the distance to the moon, and 7 miles across.  That would make a pretty hefty splash in any ocean it would hit.

Jimfarmer

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #678 on: September 11, 2019, 10:54:13 PM »
Only half the distance to the moon, and 7 miles across.  That would make a pretty hefty splash in any ocean it would hit.

The units abbreviation "m" means meters.  Miles is "mi".

Yowbarb

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #679 on: September 11, 2019, 11:42:13 PM »
Only half the distance to the moon, and 7 miles across.  That would make a pretty hefty splash in any ocean it would hit.

7 meters as Jim mentioned... which means a diameter of the object of 21 feet+
although much smaller this also would create a whole lotta damage.
One former town hall administrator in Georgia had a small meteorite crash through one wall near the ceiling and pass through the house and exit another wall. They never found the object. They feel it was a really small object but wow it sure carried with it a lot of velocity and force...

I am guessing maybe smaller than a baseball...

Yowbarb

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #680 on: September 11, 2019, 11:44:28 PM »
Another "Close-Call".. Sept. 7th ..

MadMax, yes that was fairly close.
It's the same one I mentioned in Reply #674.
That was a previous page, a few posts back you probably couldn't see that...
If PX comes in closer as we expect it will push and also carry objects with it...
Stay safe everyone... Reinforced concrete domes would probably stand up to smallish meteorites... If they were partly buried with bermed earth it would lessen impact...

https://cneos.jpl.nasa.gov/ca/   See: 2019 RC1  This is an Apollo Object

Sept 07, 2019        Object name: 2019 RC1
Minimum distance  Lunar Distances:  0.48
                            Au 0.00122
Condition Code: 8   
"...The uncertainty parameter is also known as condition code in JPL's Small-Body Database Browser."  The scale is 0 to 9. The higher the number the higher the uncertainty of astronomers about its cours

ilinda

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #681 on: September 12, 2019, 02:12:05 PM »
Only half the distance to the moon, and 7 miles across.  That would make a pretty hefty splash in any ocean it would hit.

The units abbreviation "m" means meters.  Miles is "mi".
Thanks for the correction--it would make no sense to mix metric with imperial systems in the same article/chart.

MadMax

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #682 on: September 13, 2019, 04:43:35 PM »
Guess they didn’t see this one coming ..

Boulder falls on Virginia highway after meteor lights up the night sky, confusing many  8) :-[

https://www.charlotteobserver.com/news/article235053072.html

Read more here: https://www.charlotteobserver.com/news/article235053072.html#storylink=cpy

A boulder came out of nowhere and landed on a Virginia highway overnight, leading to confusion when the timing followed widespread reports of a fireball streaking along the East Coast late Thursday.

The American Meteor Society says it received nearly 40 reports from people who saw a “fireball” over the Carolinas and Virginia, including callers from the Richmond area where the boulder fell.

Witnesses said the fireball appeared around 8 p.m. moving to the north, and dash cam video obtained by ABC11 showed it appeared on the horizon as a bright white ball with a tail of fire.

Hours later came news that a boulder had mysteriously appeared on a highway southeast of Richmond — and it was big enough to throw a passing car onto its roof, Lt. Justin Aronson of the Chesterfield County Police said on Twitter.

Aronson posted photos of the boulder surrounded by orange cones and flares, along with an image of the unlucky car resting on its front windshield. The rock was the size of a picnic table, TV station WTVR reported.


MadMax

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #683 on: September 14, 2019, 04:44:02 PM »
An asteroid larger than some of the world's tallest buildings will zip by Earth Saturday  ???

On Saturday, an asteroid will pass by Earth that's larger than some of the tallest buildings on the planet.

Asteroid 2000 QW7 is estimated to be between 290 meters and 650 meters in diameter, or between 951 and 2,132 feet, according to NASA. The world's tallest building is the Burj Khalifa in Dubai, which reaches 2,717 feet tall. The second tallest building is the Shanghai Tower at 2,073 feet.


MadMax

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #684 on: September 21, 2019, 01:11:30 PM »
Two more "close calls" (i.e. LD < 1.0)!  ???

Yowbarb

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #685 on: September 21, 2019, 07:48:17 PM »
Thks for the info, MadMax,
true today's object 2019 SD1 is 0.7 Lunar distances! Not sure if it went by yet,
Barb T.
...
https://www.spaceweather.com/

Yowbarb

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #686 on: September 21, 2019, 10:10:32 PM »
Yowbarb Note: This might be the meteorite from May. Didn't see a date in the video description.

METEORITE CAUGHT ON CAMERA ABOVE TASMANIA!!! (Full Version) 2019  0:20  24,324 views

https://youtu.be/2etAOarqKLs

Undergrounds Most Hated Gaming
Published on Sep 20, 2019

MadMax

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #687 on: September 26, 2019, 03:01:11 PM »


Four more "close calls":  :o

https://www.spaceweather.com/

MadMax

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #688 on: September 26, 2019, 03:12:10 PM »
They have been missing a *lot* recently haven’t they ..  ???

NASA pushes ahead with its plan to build a $600million telescope to detect potentially devastating 'city killer' asteroids

https://www.dailymail.co.uk/sciencetech/article-7502445/NASA-pushes-ahead-plan-build-telescope-spot-potentially-devastating-asteroids.html

According to NASA, 2019 OK would have triggered a blast wave with the power to lay waste to an area of around 50 miles (81 kilometres) in diameter, had it entered the Earth's atmosphere.

Astronomers have expressed concern at how close to the Earth the asteroid had managed to get before it was detected. 

'This one did sneak up on us and it is an interesting story on the limitations of our survey network,' said NASA planetary defence officer Lindley Johnson on July 25.

'This object slipped through a whole series of our capture nets,' NASA Centre for Near-Earth Studies manager Paul Chodas told The Times.

'I wonder how many times this situation has happened without the asteroid being detected ???

The earliest that NASA could launch the monitoring satellite now would be 2025. (Too Late!!)

Dr Mainzer cautioned that current telescopes are ineffective at spotting asteroids before it becomes too late to avert a potentially catastrophic impact.

The Chelyabinsk meteor that only measured around 56–66 feet (17–20 m) across, for example, caused extensive ground damage and around 1,500 injuries when it exploded in the Earth's atmosphere over Russia back in the February of 2013.

In contrast, the large asteroid that hit the Earth and triggered the extinction of the dinosaurs was thought to have been around 6 miles (10 km) across.

MadMax

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #689 on: September 26, 2019, 03:27:28 PM »
One chart “says it all” ..

http://zetatalk.com/newsletr/issue678.htm

Nibiru is denied. From Heads of State to observatories to the media to the very wealthy – they are all guilty as Hell. The elite hope to maintain the Status Quo where they are on top of the pile as long as possible. They rightfully should expect the public to be furious about the lack of warning. How does one warn the public and ensure they survive to service the elite in the future? Apparently, by presenting Nibiru in disguise. Take for instance the increasing barrage of debris from Nibiru’s tail. Why are there so many Asteroids lately? We are told the result of Nibiru’s presence, but not the true cause of the debris traffic.


An Asteroid Larger than some of the World's Tallest Buildings will Zip by Earth Saturday
September 14, 2019
https://www.cnn.com/2019/09/14/world/asteroid-flyby-2000
   
 Astronomers don't believe the asteroid poses any danger, but NASA's Center for Near Earth Object Studies is tracking it. In June, astronomers showed that telescopes could provide enough warning to allow people to move away from an asteroid strike on Earth.

ZetaTalk Comment 7/31/2019: Asteroid 2019 OK came from the direction of the Sun, and thus astronomers failed to notice its approach. When Near Earth Asteroids come from the direction of the Sun, where Nibiru rides at present, these are not Asteroids. This is debris in the tail of Nibiru, and we suggest that astronomers start looking in that direction for the next threat, as this debris will be on the increase. Chelyabinsk, which the Russians shot down in 2013, was such a chunk of debris from the tail of Nibiru, and it too came from the direction of the Sun.

ZetaTalk Comment 3/15/1998: The asteroid 1997 XF11 is one such effort to prepare the populace for cataclysmic Earth changes and to start them thinking about the likelihood of such changes.


 

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