File:ESO-Comet Halley at 28 AU-phot-27a-03-fullres.jpg

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Summary

Description	English: Faint, star-like image of Comet Halley (centre), observed with the ESO Very Large Telescope (VLT) at the Paranal Observatory on March 6-8, 2003. 81 individual exposures from three of the four 8.2-m VLT telescopes with a total exposure time of about 9 hours were combined to show the magnitude 28.2 object. At this time, Comet Halley was about 4200 million km from the Sun (28.06 AU) and 4080 million km (27.26 AU) from the Earth. All images of stars and galaxies in the field were removed during the extensive image processing needed to produce this unique image. Due to the remaining, unavoidable "background noise", it is best to view the comet image from some distance. The field measures 60 x 40 arcsec 2 ; North is up and East is left.
Date	2 March 2004
Source	http://www.eso.org/gallery/v/ESOPIA/SolarSystem/phot-27a-03-fullres.jpg.html http://www.astrobio.net/pressrelease/579/coma-for-halleys-comet
Author	ESO
Permission ( Reusing this file)	http://www.eso.org/public/outreach/press-rel/copyright.html

Search for more ESO images: http://www.eso.org/gallery/v/ESOPIA

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The following pages on Schools Wikipedia link to this image (list may be incomplete):

Halley's Comet

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Orientation	Normal
Horizontal resolution	300 dpi
Vertical resolution	300 dpi
Software used	Adobe Photoshop CS3 Macintosh
File change date and time	10:43, 20 January 2009
Colour space	Uncalibrated

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