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Asteroid 2004-B186 fly-by

  1. Jan 26, 2015 #1

    Andy Resnick

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    Asteroid 2004-B186 is passing by this evening (monday), with a maximum magnitude 9.5 (visible with bionculars/small telescopes). Here's a chart:

    http://neo.jpl.nasa.gov/images/2004bl86_starchart.jpg [Broken]

    Hoping for a (reasonably) clear evening....
    Last edited by a moderator: May 7, 2017
  2. jcsd
  3. Jan 26, 2015 #2
  4. Jan 26, 2015 #3


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    wall to wall cloudy with rain here in eastern Australia :(
  5. Jan 26, 2015 #4


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    Hm. 10 degrees of movement per 4 hours.

    Not fast enough to be discernible to the eye, except if really close to some background stars.
  6. Jan 26, 2015 #5


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    but easily picked up in photo's say 10 - 15 minutes apart :)

  7. Jan 27, 2015 #6
  8. Jan 27, 2015 #7


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    The "Cloudy Nights" astro forum I'm on has a guy that posted his video of the asteroid to Youtube...

    his comments in the forum are as follows .....

    so cool!! :)

  9. Jan 27, 2015 #8
    Pretty awesome radio-photos , Greg. I was unaware about such small asteroids having moons.... Furthermore, that is an incredible series of shots, and showing great detail. I wish they would have given the time between each frame so we could determine the rotation rate; it appears to be a shot from directly above the rotation axis.. However, I am sort of stumped as to how they got such high resolution...down to several meters using a radio telescope.?. Yikes; Wasn't this thing almost 3 times the lunar distance. I find it hard to believe Goldstone can even get that sort of resolution on the lunar surface...I' certainly have never seen such. Maybe I'm just not up to date on radio imaging.
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