Monday, April 20, 2015

“Rosetta” fixed ejection of gas and dust from the comet 67P – Mail.Ru

Comet Churyumov-Gerasimenko 67P, which is a loose ball of ice and dust diameter of 4 km, is now close to the Sun, which is stronger than all the heats its surface.

«Rosetta” is located about 100 km from the comet and the Earth continues to send interesting unique image transformation of this celestial body.

The system cameras “Osiris” recorded in the last days of violent eruption on the reverse side of the comet in an area that was designated “Imhotep” on behalf of the Egyptian god of wisdom and medicine.

The report of this event was presented to the General Assembly of the European Union of Geophysics in Vienna.

Chapter project “Osiris” Carsten Güttler said that the first image was acquired on March 12.

«Then shots were taken at intervals of two minutes. The first picture we see no activity. The second picture is visible already fully formed flow of gas and dust, “- said Güttler.

approaches the Sun

« The length of this release – about 900 meters, and the velocity of propagation – eight meters per second. Interestingly, this emission originated on the dark side of the comet, not illuminated by the sun, and the mechanism for the occurrence of such an anomaly, we have not understood “- he added.

It is believed that the main activity on the surface of the comet should occur at sites heated by the sun, and not in shaded areas.

Comet 67P quickly approaching the Sun and pass perihelion, that is, the point of minimum distance from him on 13 August.

It will be in the day inside the orbit of Mars at a distance of 189 million km from the sun.

It is expected that the activity of the processes occurring on the surface of a comet, will continuously grow up to this point.

In March, the leaders of the flight was transferred probe more distant from the comet’s orbit, as the dust emissions affected his navigation system.

Sensors orientation by the stars began to falter of Excessive amounts of dust.

It seems that in the coming months, this maneuver translation probe orbited have to repeat.

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