The two asteroids were discovered a total of three days ago. These are small asteroids, and if they collided with the Earth, they would break up in the atmosphere and create a meteor shower
Two asteroids will pass near the Earth today at a distance that is equal to the distance of the Moon from us. The two bodies were discovered on September 5 by Andrea Boatini, who works with the XNUMX-meter reflector on Mount Lemon in Arizona, as part of the Mount Lemon study involving various researchers.
The estimated size of both bodies is between 8 and 12 meters, with possible ranges of between 5-15 and 7-25 meters respectively. The smaller of the two, 2010 RF12, will pass by Earth at a distance that is 21 percent of that separating Earth from the Moon. That is, it will pass at a distance of 75 thousand kilometers from us. It is currently moving at an apparent speed of up to 20 arcseconds per minute. When the body reaches its maximum approach to Earth today at approximately 9:70 PM GMT (midnight Israel time), it will probably accelerate to an apparent speed of between 160 and 14 arcseconds per minute and it will reach a brightness unit of 0.82. It is in orbit from 1.17 to AU XNUMX And it circles the sun once a year, when it comes close to the earth only once in a hundred years.
The larger body, 2010 RX30, will pass by the Earth at a distance that is 0.66 of that separating the Earth from the Moon. It is about 12 meters in size and it will pass by the Earth at 10 AM GMT (110 PM Israel Time). It will move at an estimated speed of between 400 and 14 arcseconds per minute and at a brightness unit of 0.5. Its orbit spans between 1.15 and 4.5 AU and is inclined by XNUMX degrees from the plane of the Melaka.
Early photometric observations with the 6-meter southern Fulks telescope on September 2010 of the first asteroid 12 RF6 showed that this body does not rotate quickly but rather slowly, taking more than 0.11 hours to rotate on its axis. For two and a half hours its brightness increased by slightly more than ten percent (brightness unit XNUMX).
None of the asteroids pose a danger to Earth. If they entered the atmosphere they would disintegrate immediately as soon as they fell in the thick atmosphere of the earth. Most of the mass of the asteroid would have burned up, with the smaller fragments that survived landing as meteorites.
For information on the NASA website
The details of the locations of the bodies
The Fox Telescope Project has given instructions on how to observe asteroids with the Fox Telescope:
11 תגובות
Hello Dr. Gali.
Can you tell me what the object is that is discovered in the following coordinates
19-25
Site
http://www.sky-map.org/
The blue bone (you have to zoom plus 2 on the scale down to find it - after that you can really zoom in on it)
Thanks
At what brightness can objects be seen with the naked eye (at night)?
I think it's a little different. But there might still be a chance to see the asteroids and also bring live pictures to channel 1 or 2.
You can place a huge cannon in Ramon Crater like the one built by Jules Verne's Cannon Club in Baltimore.
It's not a problem, the IDF would probably be happy to have one such volunteer for the important and urgent task.
Then shoot a huge lead bullet projectile.
Baron Münchhausen will stretch his bootstraps and fly the bullet straight to the moon and on the way with the help of his bootstraps he will climb the asteroids. He will go around them a bit like on a carousel and then he will come back with a second cannonball.
and will bring us pictures from the moon.
No. The asteroids, both the one that passed at noon and the one that is passing now, are too small to be seen without a telescope.
Faster
Is it possible to see it with the naked eye?
Daniel:
The speed is specified in arc seconds per minute.
That's how fast you'll see it move through the sky.
It cannot be translated into normal speed (like km/h) because normal speed refers to three-dimensional space and apparent speed speaks of two-dimensional space.
This is due to the fact that you cannot simply "see" the distance at which the observed body is located, but only the angle at which you look at it. Therefore, the apparent speed is not the rate of change of position in three-dimensional space, but the rate of change of the angle at which the object is seen by the viewer.
Gali - could you, please, "translate" the speed into km-per-second and/or explain the units of measure you used?
The real mistake in the late discovery is that we have such a body so close to "home" and there is no plan to get out close and check it properly. I wonder if in a few decades there will be technology that will make it possible to stop this body ahead of time and bring it to Earth (and maybe extract the precious minerals inside it and learn about the alchemy of the universe).
If there was enough time to send some device there to push in the opposite direction and slow down, or put it into orbit around the moon so that we have an asteroid available - that could be great.
Happy new year to the scientists and the knowledgeable and may the coming year yield fascinating and interesting science for all of us.
Greetings friends,
Ami Bachar
Lol ..
The end of the world today and not in two years.
For commenter 1, anything is possible, if he arrives from the direction of the sun it will be difficult to see him.
"They were discovered 3 days ago".. Is it possible for a large asteroid (say, like the one that killed the dinosaurs) to be discovered a few days before a collision with the Earth?
Thank you and Happy New Year.