File:NGC 6397 (ESO).jpg

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Summary

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Description
Polski: Gromada kulista NGC 6397
English: The globular cluster NGC 6397, located at a distance of approx. 7,200 light-years in the southern constellation Ara. It has undergone a "core collapse" and the central area is very dense. It contains about 400,000 stars and its age (based on evolutionary models) is 13,400 ± 800 million years. The photo is a composite of exposures in the B-, V- and I-bands obtained in the frame of the Pilot Stellar Survey with the Wide-Field-Imager (WFI) camera at the 2.2-m ESO/MPI telescope at the ESO La Silla Observatory. It was prepared and provided by the ESO Imaging Survey team. The spikes seen at some of the brighter stars are caused by the effect of overexposure (CCD "bleeding").

Colours & filters
Band Telescope
Optical B MPG/ESO 2.2-metre telescope WFI
Optical V MPG/ESO 2.2-metre telescope WFI

Optical I MPG/ESO 2.2-metre telescope WFI
Date
Source http://www.eso.org/public/images/eso0425a/
Author European Southern Observatory

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Date/TimeThumbnailDimensionsUserComment
current11:14, 12 October 2011Thumbnail for version as of 11:14, 12 October 20113,882 × 3,873 (1.68 MB)John Belushi (talk | contribs)

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