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Asteroid "Beast"

  1. Jun 8, 2014 #1
    Did anybody see the "beast" as it whizzed by earth today at 31,000 mph ?
    Just checking to make sure we didn't get hit. :tongue:

    Oops; maybe I should have put this under "stargazing & Telescopes"
     
    Last edited: Jun 8, 2014
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  3. Jun 9, 2014 #2

    davenn

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    well its Monday night here and my seismograph didn't record sny quakes
    so I guess that the NASA prediction that it posed no threat to earth held true

    Dave
     
  4. Jun 9, 2014 #3
    I missed it! Sounds like a fun one!

    http://www.latimes.com/science/sciencenow/la-sci-sn-asteroid-the-beast-sunday-20140606-story.html
     
  5. Jun 10, 2014 #4
    Thanks for the assurance , Dave ....maybe I need to add a seismograph to my astronomical instrument collection....or my astronomical instrument "wish list". It poses no threat, but they insist on calling it a "Potentially" Hazardous Asteroid, PHA.. Hmmm. ;)
    Creator
     
    Last edited: Jun 10, 2014
  6. Jun 10, 2014 #5
    Greg; thanks for the info; apparently it only achieved a maximum magnitude of about 13.7.
    Seems I thought I read that it was originally thought to be 30 to 40 miles across when discovered a few months ago using the Wide Field Infrared (whatever) Survey scope. But I think I probably read it wrong. I wondered how such a large error could have arisen, (seeing it is ONLY the size of a Nimitz Class Aircraft Carrier.)
    Apparently the velocity is lower than that of earth speed around the sun because the asteroid is overtaking the earth in its orbit...so a slower relative speed.
    Creator

    -- "Its bad luck to be superstitious." --
     
    Last edited: Jun 10, 2014
  7. Jun 15, 2014 #6

    PhysicoRaj

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  8. Jun 17, 2014 #7
    Cool; nice pics Raj.:approve:

    .....Looks like a hole in the middle.....shoulda named it the donut asteroid.:tongue:
    ....
     
  9. Jun 18, 2014 #8

    Borek

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    No, it missed you.

    For some reason it looks to me like a Venus of Willendorf (or one of her numerous cousins).
     
  10. Jun 20, 2014 #9
    I live in Florida and on Sunday night June 8 (Monday morning really) at 2:15 I was sitting on my lanai having a smoke when a HUGE white ball went flying across the sky. I mean huge...not what I see when I see a falling star. I watched it go across my field of vision...it had a tail and it seemed to be glowing green/blue at the front. I hadn't heard of The Beast at all...but was so amazed by this huge thing that I got on my computer and was shocked that this is what I might have witnessed. I've looked at dozens of sights, but no one seems to have taken a pic of it (oh how I wish I had...!!!! I'd love to look at that sight forever!). I tried to find out the trajectory of it...but all I could find was the path in relation to stars and planets. I wanted to know if it was supposed to go over Florida at that time. I can't find that info anywhere...or any pics (other than NASA's radar images) anywhere out here. Could that have been what I saw??? It was so huge...I thought it might be a plane going down and I fully expected a big boom and some shaking...but nothing happened. What do you think....did I see it??
     
    Last edited: Jun 20, 2014
  11. Jun 20, 2014 #10

    PhysicoRaj

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  12. Jun 20, 2014 #11

    Borek

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    The Beast - despite being huge and close - was pretty faint. On some random web page I found information its magnitude was around 13.7 - which means you need a decent glass to be able to see it (something like a 10" reflecting telescope).

    What you describe sounds definitely as something in the atmosphere, the Beast was over three times more distant than the Moon.
     
  13. Jun 20, 2014 #12

    PhysicoRaj

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    Deager might have seen this:
    sonic-boom-from-possible-bolide-last-nights-lyrids-meteor-shower.w654.jpg
     
  14. Jun 20, 2014 #13
    Raj, odd little chart. Guess the closest to what I saw was a fireball...although it was green and blue and not red and orange. Much more like the pic above. And what is that? And when? The tail was much more white than the fiery colors in the pic, the front is almost exactly what I saw. Thanks for your post.
     
  15. Jun 21, 2014 #14

    davenn

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    That meteor pic falls within the Bolide - fireball range as at the lower left corner of the chart :)

    2 things that will have some effect on the colours seen are the speed through the atmosphere
    and the mineral composition of the meteor


    Dave
     
  16. Jun 21, 2014 #15
    Thanks Dave. That was a cool pic. I'll have to dig around and see if there are any pics out here of the one I saw that night. I couldn't be the only person that saw it...my first fireball!
     
  17. Jun 22, 2014 #16

    jim hardy

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    Did you notice any sound?

    In early 70's i saw a similarly huge meteor track(also in Florida) but was unsure if the accompanying sound was real or a figment of my imagination - because it didnt make any physics sense for sound to travel that fast.
    Later my grandmother described witnessing an intense meteor shower as a little girl in Missouri, around 1900, also accompanied by sound. She described a "phfffft" accompanying the large ones, which is what i thought i'd heard.
    That set me to wondering(for four decades now) and i've since seen several reports of sound accompanying meteors.

    This recent article offers a plausible explanation...

    http://www.livescience.com/38651-meteor-sound-electrophonics-perseids.html

    The sound i thought i'd heard seemed to come from the overhead electrical wires.
     
  18. Jun 22, 2014 #17

    Jonathan Scott

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    I've previously noticed hissing or crackling sounds which appeared to be exactly synchronised with a Perseid meteor (especially one which went "pop" at the end of its trail), and I knew that there was no way that sound could travel that fast, but it was so definite that I decided it had to be something electromagnetic inducing vibrations in something near to me, possibly even in my spectacles. I'm glad to see that this is now considered scientifically plausible!
     
  19. Jun 24, 2014 #18

    PhysicoRaj

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    This is interesting! I hope to be more observant in the future and try to "listen" to the meteors.
     
  20. Jun 24, 2014 #19

    jim hardy

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  21. Jun 25, 2014 #20

    PhysicoRaj

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