Astronomers: The fate of the comet ISON was tragic




Astronomers: The fate of the comet ISON was tragic


According to the findings of a new study presented at the annual meeting of the American Geophysical Union (AGU), held in San Francisco, astronomers can now definitively conclude that Comet C/2012 S1 , or Comet ISON dead.

The announcement was made at a meeting on December 11 AGU researcher Carl Battamsom, an expert on comets from the Research Laboratory of the U.S. Navy, located in Washington, DC.

“It looks like nothing from her left. Comet ISON is dead, but her memory will remain forever, “- then announced Battams assembled audience of scientists.

ISON reached perihelion, that is its point closest to the Sun, November 28, 2013. On that day all the astronomical community held its breath in hopes to find out what will happen next – whether ISON survive the encounter with the solar corona.

Despite the fact that scientists initially thought that some parts of the comet survived a disastrous trajectory of movement, recent data suggest that there is no evidence of their remains at the moment. It is possible that some fragments of the comet really preserved, but even so, it is likely that they are already on the way out of the solar system. However, through this flight, according to journalists portal Space, debris will not be able to, and eventually completely destroyed.

The approach of the comet to the Sun ISON last month observed several space research vehicles. Among them, for example, STEREO (Solar Terrestrial Relations Observatory) Solar Dynamics Observatory and NASA, as well as a joint project of NASA and the European Space Agency spacecraft SOHO, whose main task is to observe the Sun.

Since the data at the beginning of December for scientists were not quite convincing in order to draw definitive conclusions, astronomers decided to check the status of the comet space telescope “Hubble”. Thereafter, December 3 NASA officials confirmed that ISON was completely destroyed in the moment when she was at a distance of 1.165 million kilometers from the Sun’s surface.

The main reason that astronomers thought that the comet ISON completely destroyed, is that the diameter of its nucleus, under assumptions, was less than 600 meters. Comets with the size of the nucleus is very rarely survive passage through the perihelion.

“Comet ISON lived a very rich life. However, the most striking part of it was the climax of the flight near the sun when its complex and durable outer shell revealed to us the secrets of its inner workings – a mystery which we are only now beginning to understand, “- commented Karl Battams.

«NASA is going to use” Hubble “and” Spitzer “and” Chandra “to follow up to make sure that the comet miraculously return. However, I’m not sure that they will be able to find it from at least some remnants “- added Battams in his report.

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Tags: NASA , Comet ISON , Comets .

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