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Reminder about Deep Impact on night of July 3

  1. Jun 28, 2005 #1

    marcus

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    Reminder about "Deep Impact" on night of July 3

    http://science.nasa.gov/headlines/y2005/images/deepimpact/skymap_north.gif

    here is a skymap

    NASA will send this 820 pound copper slug into the guts of comet Tempel 1
    at 11 PM Pacific Daylight Time on 3 July

    For people with home telescopes in, like, LA, who can watch it, Tempel 1 will be in the constellation Virgo near the bright star Spica

    here is the press release
    http://science.nasa.gov/headlines/y2005/28jun_deepimpact.htm?list45222

    the projectile will impact the comet at a speed of 23,000 mph, it says.

    I forget what that amounts to in kiloton TNT equivalent kinetic energy. it is a lot of energy. I guess something will be learned from watching the crater and the ejecta. tough on the comet.
     
    Last edited: Jun 28, 2005
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  3. Jun 28, 2005 #2

    turbo

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    Unfortunately, Temple1 will dive below the horizon long before impact in this location (Maine). Folks in Arizona and southern CA ought to have a great view, though.
     
  4. Jun 28, 2005 #3

    tony873004

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    I'm actually thinking you might be luckier in Maine.

    I live in San Francisco. Twilight will have just ended by the time of the collision, and the comet will be about 1-2 hours from setting. But unless I see the blast itself, I don't think that 1-2 hours is enough time for the debris and fresh outgassings to expand into a large enough coma for me to see. An observer in Maine just might see the results 3 hours before me, on the following night.
     
  5. Jun 29, 2005 #4

    marcus

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  6. Jun 30, 2005 #5

    Phobos

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  7. Jun 30, 2005 #6

    marcus

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  8. Jul 4, 2005 #7

    marcus

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    Last edited: Jul 4, 2005
  9. Jul 4, 2005 #8
    Here is a great link and video from the bbc:http://news.bbc.co.uk/1/hi/sci/tech/4647673.stm#

    When the link opens, click the 'See images of the comets collision' then click the: SEE ALSO Nasa Scientists give details of the cosmic collision.

    Pretty amazing video with latest details of impact.
     
  10. Jul 4, 2005 #9

    marcus

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    thanks, SN, I just used the link you supplied and watched that 28 minute
    "See Also Nasa..." movie all the way through. It's well worth watching, I think. A surprising amount of information to have so soon afterwards, although they keep going back to the fact that they need to do more analysis and image processing.
     
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