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File:Widmanstatten hand.jpg

Description Acid-etched iron meteorite slice, revealing the characteristic Widmanstatten pattern, indicative of slow cooling and crystallization within the iron-nickel cores of larger asteroids. Note the "vug" inclusion on the middle left of the slice. From the California Polytechnic State University Physics Department meteorite collection, presented at the April 2009 meeting of the Central Coast Astronomical Society. Photo by Cuesta College Physical Sciences Division instructor Dr. Patrick M. Len.
Date 23 April 2009, 20:12:45
Source originally posted to Flickr as 090423-1080887
Author Waifer X
Permission
( Reusing this file)
Checked copyright icon.svg This image, which was originally posted to Flickr.com, was uploaded to Commons using Flickr upload bot on 09:41, 21 May 2010 (UTC) by Basilicofresco ( talk). On that date it was licensed under the license below.
w:en:Creative Commons
attribution		 This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified file.
Camera manufacturer Panasonic
Camera model DMC-LZ8
Exposure time 1/10 sec (0.1)
F-number f/3.3
ISO speed rating 400
Date and time of data generation 20:12, 23 April 2009
Lens focal length 5.2 mm
Orientation Normal
Horizontal resolution 180 dpi
Vertical resolution 180 dpi
Software used Ver.1.0
File change date and time 20:12, 23 April 2009
Y and C positioning Co-sited
Exposure Program Normal program
Exif version 2.21
Date and time of digitizing 20:12, 23 April 2009
Image compression mode 4
Exposure bias 0
Maximum land aperture 3.44 APEX (f/3.29)
Metering mode Pattern
Light source Unknown
Flash Flash did not fire, compulsory flash suppression
Colour space sRGB
Sensing method One-chip colour area sensor
Custom image processing Normal process
Exposure mode Auto exposure
White balance Auto white balance
Digital zoom ratio 0
Focal length in 35 mm film 32 mm
Scene capture type Standard
Contrast Normal
Saturation Normal
Sharpness Normal

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