mardi 1 décembre 2015

New comet shape model












ESA - Rosetta Mission patch.

December 1, 2015

A new 3D shape model of Comet 67P/Churyumov-Gerasimenko has been released by ESA’s Rosetta archive team today. The model includes images taken by Rosetta’s NAVCAM up until mid-late July 2015, and reveals parts of the comet’s southern hemisphere that were not included in earlier shape models.


Image above: The updated shape model now includes recent images of the comet’s southern hemisphere. Click to explore and for download options. Image Credit: ESA/Rosetta/NAVCAM, CC BY-SA IGO 3.0.

The release also includes .WRL, OBJ, STL files, which can be used for 3D printing.

At the same time, 681 images have been added to the Archive Image Browser covering the period 6 May to 30 June 2015 as part of ESA’s regular monthly release of NAVCAM images.

During this period the comet was heading towards perihelion on 13 August, the closest point to the Sun along its orbit, and so the images capture some details of the comet's increasing activity.


Images above: Caption: The latest Archive Image Browser release. Click to enter browser. All images Credits: ESA/Rosetta/NAVCAM, CC BY-SA IGO 3.0.

Taking into account the upcoming seasonal holiday, the next NAVCAM archive release will be made early-mid January 2016.

For background information on what a shape model is, read our blog post:

How Rosetta’s comet got its shape:
http://orbiterchspacenews.blogspot.ch/2015/09/how-rosettas-comet-got-its-shape.html

Related links:

New 3D shape model of Comet 67P/Churyumov-Gerasimenko: http://imagearchives.esac.esa.int/index.php?/page/navcam_3d_models

Archive Image Browser: http://imagearchives.esac.esa.int/

For more information about Rosetta mission, visit: http://www.esa.int/Our_Activities/Space_Science/Rosetta

Rosetta overview: http://www.esa.int/Our_Activities/Space_Science/Rosetta_overview

Rosetta in depth:http://sci.esa.int/rosetta

Rosetta factsheet: http://www.esa.int/Our_Activities/Space_Science/Rosetta/Rosetta_factsheet

Frequently asked questions: http://www.esa.int/Our_Activities/Space_Science/Rosetta/Frequently_asked_questions

Image (mentioned), Text, Credit: European Space Agency (ESA).

Best regards, Orbiter.ch

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