Friday, November 29, 2013

Comet C/2012 S1 (ISON) did not survive - Money.pl

2013-11-29 9:50

Comet C/2012 S1 ( ISON) did not survive

[Photo: sxc / cc / flaivoloka]

Comet C/2012 S1 (ISON) did not survive the passage through the perihelion yesterday – NASA announces service called SpaceWeather.com.

Comet ISON had to go through perihelion (closest to the Sun) on November 28 in the evening. At this time there was to be only less than two million kilometers from the center of our daily star. This meant that on the celestial sphere ISON was about 1.3 degree from the sun and could be seen only by special koronografy.

One such instrument is placed on board the SOHO spacecraft. Comet came into his field of vision already November 27 and then still it seemed that everything is in order. ISON shone quickly, becoming brighter than a star Antares (also visible in the field of view of SOHO), and then even clearly overexpose the detector. Sorry, around noon on November 28 the comet glow began to fade, despite the fact that she is still approaching the Sun.

detailed images taken by NASA’s Solar Dynamics called Observatory clearly show that before passing through perihelion comet is a large and bright object, and then disappears for a moment in the glare of the sun and the guards coronograph. After the re-emergence of the field of view of the instrument is only very weak, barely visible haze. Certainly there has been a breakdown and strong evaporation of cometary nuclei. However, there is a chance that survived his little piece, which, however, certainly did not give such a spectacle that was expected in the event that a comet has survived the passage near the Sun. (PAP)

aol / mrt /

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