File:Hun Kal crater on Mercury.jpg

Original file ‎(1,294 × 1,102 pixels, file size: 310 KB, MIME type: image/jpeg)

Summary

Description
English: A fresh new crater in the center of an older crater basin provides a landmark for the tiny crater named Hun kal- the Mayan number 20 - which is the basis for positioning the longitudes on Mercury. By definition, the 20° meridian passes through the center of this small crater. Assuming that the spin axis of Mercury is perpendicular to its orbital plane, the latitude of Hun Kal is 0.23°S. This picture, which covers an area of 130 by 170 km ( 90 by 105 mi), was taken from a distance of about 20,700 km (12,860 mi), a half-hour before Mariner made its first close flyby of Mercury, March 1974.
Source http://history.nasa.gov/SP-424/p112.htm
Author Mariner 10
Other versions cropped to show Hun Kal more plainly

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Date/TimeThumbnailDimensionsUserComment
current21:06, 9 April 20081,294 × 1,102 (310 KB)Bryan Derksen{{Information |Description={{en|A fresh new crater in the center of an older crater basin provides a landmark for the tiny crater named Hun kal- the Mayan number 20 - which is the basis for positioning the longitudes on Mercury. By definition, the 20° me
The following pages on the English Wikipedia use this file (pages on other projects are not listed):

Global file usage

The following other wikis use this file:

  • Usage on fr.wikipedia.org
    • Altitudes et coordonnées géographiques sur les corps célestes
    • Hun Kal (cratère)
  • Usage on hy.wikipedia.org
    • Մերկուրի (մոլորակ)
  • Usage on ja.wikipedia.org
    • フン・カル
  • Usage on ml.wikipedia.org
    • ഹൂൺ കാൽ
  • Usage on pl.wikibooks.org
    • Wikijunior:Układ Słoneczny/Merkury
  • Usage on ru.wikipedia.org
    • Меркурий
  • Usage on zh.wikipedia.org
    • 婚咯 (坑穴)

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