2012 DA14

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This topic contains 2 replies, has 2 voices, and was last updated by  Mark Galvin 4 years, 2 months ago.

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  • #4331

    Brian
    Registered user
    5p

    Anyone know what the ‘DA’ stands for?

    #4332

    Brian
    Registered user
    5p

    Looks like I’ve won the prize !!!

    ref Minor Planet Centre http://www.minorplanetcenter.net/iau/info/OldDesDoc.html

    The standard designation consists of the following parts, all of which are related to the date of discovery of the object:

    2012 a 4-digit number indicating the year;
    D a letter to show the half-month; ie D = second half of February, see website
    A other letter to show the order within the half-month; A ie 1st BUT
    14 optional number to indicate the number of times the second letter has been repeated in that half-month period ie 14.
    which I think means that there were 325 ( 13 x 25 {‘I’ is not used so only 25 letters used} ) Near Earth Objects identified in the second half of February 2012.

    Brian

    #4338

    Mark Galvin
    Administrator
    0p

    Ahh I wondered about that myself! So it’s like a bit like a car registration plate :-)

    I’ve posted a link to an observing guide and also to Slooh, which will be showing live images from robotic telescopes of the flyby: http://liverpoolas.org/2013/02/15/how-to-observe-near-earth-asteroid-2012-da14/

    Arthur Dent: "But what is it? What’s worth a statue fifteen miles high? "
    Bird: "It was of great symbolic importance to our ancestors, it’s called ’Arthur Dent Throwing the Nutrimatic Cup’. "
    Arthur: "Sorry, what did you say?"

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