Asteroid to hit Mars

Discussion in 'Astronomy, Exobiology, & Cosmology' started by Orleander, Dec 21, 2007.

  1. Myles Registered Senior Member

    Messages:
    5,553
    Thanks for pointing out my SMALL oversight. I did a rough calculation which suggests that from a distance of 1 mile above earth and mars respectively the addition velocities would be about 392 mph and 218 mph. As you say small beer compared to the original velocity of the asteroid . I estimate , using 1/2 m V^2 that the kinetic energy in both cases would be increased byabout 8K M and 2.4K M respectively.

    For the sake of comparison with your figures, I have translated the velocities into metric measure on the basis of 1m=3'. They work out as 191m/sec and 106m/sec respectively. Obviously. these value will be larger if we were to calculate them from the time the asteroid enters earth's atmosphere as opposed to my values based on a height of 1 mile. They would, however, still be insignificant , in relation to 17-20km/sec.
     
    Last edited: Dec 25, 2007
  2. Google AdSense Guest Advertisement



    to hide all adverts.
  3. orcot Valued Senior Member

    Messages:
    3,414
    This asteoid is most probably going to miss the opportunity rover But what are the changes that it would feel the resulting earthquake and could it possible see the ejecta in the high atmosphere?

    The region is known to had water in the past resent theories predict that there would be large sulpher deposits could it's impact be measured in the atmosphere composition and could this have a effect on the temprature?
     
  4. Google AdSense Guest Advertisement



    to hide all adverts.
  5. blobrana Registered Senior Member

    Messages:
    2,214
    MRO to track possible asteroid impact

    "New Mexico Tech's Magdalena Ridge Observatory is already making its mark in the annals of astronomy research after being recently tasked by NASA to make detailed observations of an asteroid that is now given a 1 in 75 chance of hitting Mars on January 30.
    On Dec. 18, observatory researchers began tracking the asteroid, designated 2007 WD5, with the research facility's 2.4-meter telescope."

    Read more

    Latitude 33 58 36 S, Longitude –107 11 05
     
  6. Google AdSense Guest Advertisement



    to hide all adverts.
  7. Enmos Staff Member

    Messages:
    43,184
    Is it possible to deflect it ? With nukes or something ?
     
  8. blobrana Registered Senior Member

    Messages:
    2,214
    Hum,
    unfortunatly, not this time.

    But there is ample time, if it misses, to get better knowledge of its orbit and launch a constellation of nuclear warheads so that we can finally destroy that face, once and for all.
     
  9. Enmos Staff Member

    Messages:
    43,184
    I was thinking more along the lines of deflecting it towards us..
    Wouldn't it be great to study the impact and the consequences ?
    It would also mean a serious increase in the funding of research that deals with this kind of thing.
     
  10. blobrana Registered Senior Member

    Messages:
    2,214
    Hum,
    yeah, i would be fascinating.
    But it smacks of you being on the side of the Arachnids.
     
  11. Enmos Staff Member

    Messages:
    43,184
    So ?
     
  12. Orleander OH JOY!!!! Valued Senior Member

    Messages:
    25,817
    you would kill my children because it would be interesting to see how they would die??
     
  13. Enmos Staff Member

    Messages:
    43,184
    Sure..

    Please Register or Log in to view the hidden image!



    I was kidding of course.. lol
     
  14. Orleander OH JOY!!!! Valued Senior Member

    Messages:
    25,817
    Woo-Hoo!!!:yay:

    The odds were increased to 1-in-25 this week after a Ph.D. student pored through the archives and plotted the asteroid's motions before its official discovery. The new information allowed scientists to improve their calculations of the asteroid's orbit and flight path.
     
  15. blobrana Registered Senior Member

    Messages:
    2,214
    "Pre-discovery observations of asteroid 2007 WD5, taken on November 8, 2007 have allowed its orbit to be refined and the uncertainties for the late January Mars encounter have been improved. The impact probability resulting from the recent orbit refinement has increased to a surprising 3.9% (about 1 in 25 odds)...In the unlikely event of an impact, the time would be 2008 January 30 at 10:56 UT (2:56 a.m. PST) with an uncertainty of a few minutes."

    Source
     
  16. Killjoy Propelling The Farce!! Valued Senior Member

    Messages:
    5,238
    'Course, that probably also increases the likelyhood of a "deflection shot" which ends up comin' right at us.

    You got a catcher's mitt ?

    Please Register or Log in to view the hidden image!

     
  17. Janus58 Valued Senior Member

    Messages:
    1,789
    The problem comes in when someone applies " a little learning" to something that requires a lot more.

    The entire poem:

    A little learning is a dangerous thing ;
    Drink deep, or taste not the Pierian spring :
    There shallow draughts intoxicate the brain,
    And drinking largely sobers us again.
    Fired at first sight with what the Muse imparts,
    In fearless youth we tempt the heights of Arts ;
    While from the bounded level of our mind
    Short views we take, nor see the lengths behind,
    But, more advanced, behold with strange surprise
    New distant scenes of endless science rise !
    So pleased at first the towering Alps we try,
    Mount o’er the vales, and seem to tread the sky ;
    The eternal snows appear already past,
    And the first clouds and mountains seem the last ;
    But those attained, we tremble to survey
    The growing labours of the lengthened way ;
    The increasing prospect tires our wandering eyes,
    Hill peep o’er hills, and Alps on Alps arise !

    Alexander Pope
     
  18. cosmictraveler Be kind to yourself always. Valued Senior Member

    Messages:
    33,264
    All that need be done is to explode a 10 megaton warhead approxamatly a half of a mile away from the asteroid and the shock wave will deflect it enough for it not to create any problems.
     
    Last edited: Dec 30, 2007
  19. Janus58 Valued Senior Member

    Messages:
    1,789
    For an asteroid with an initial relative speed of 20 km/sec, the impact speed difference between Earth and Mars works out to about 2.29 Km/sec. In terms of kinetic energy, the Earth impact would be about 23% more energetic.
     
  20. superluminal . Registered Senior Member

    Messages:
    10,717
    Excellent! Thank you very much. That's significant.
     
  21. Janus58 Valued Senior Member

    Messages:
    1,789
    With what I could find out with a quick search, 2007 WD5 should have a initial relative velocity to Mars of around 12.5 km/sec. With this initial speed, the Earth/Mar's impact velocity difference comes out to a about 24.5% and the Energy of Impact difference to over 50%.
     
  22. Read-Only Valued Senior Member

    Messages:
    10,296
    Heh! So much for Kaneda's statements about forming a larger crater on Mars! :bugeye:

    Thank you very much.

    Please Register or Log in to view the hidden image!

     
  23. kaneda Actual Cynic Registered Senior Member

    Messages:
    1,334
    You should ask your teacher to help you with your reading skills as they still need work. I said Mars would have a larger crater than Earth from a similar impact and that a large impact on Mars would be good for astronomers on Earth. I never said there would be a large crater.
     

Share This Page