Kometer i Helixtågen

Fora ASTRO-FORUM GENEREL ASTRONOMI Kometer i Helixtågen

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  • #11462

    henrik
    Deltager
    • Nova

    jeg undrede mig lidt over de “Pilars” der er på billedet af Helicx tågen fra ESO. Da Helixtågen kun er 2 lysår i diameter, mkan det jo ikke være nabostjerner, men hvad er det så.

    ESO skriver om dem: “All around the inside of the ring are small blobs, known as “cometary knots”, with faint tails extending away from the central star. They look remarkably like droplets of liquid running down a sheet of glass. Although they look tiny, each knot is about as large as our Solar System. These knots have been extensively studied, both with the ESO Very Large Telescope and with the NASA/ESA Hubble Space Telescope, but remain only partially understood”

    https://lists.ipac.caltech.edu/pipermail/spitzer-news/2007/000028.html

    LÆS MERE på astronomibladetHenrik2009-02-28 10:26:09

    #11504

    john.st
    Deltager
    • Giant

    Der findes nogle fortrinlige detailbilleder på Hubble-sitet:

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