File:Tvashtar Catena.jpg
Original file (1,215 × 823 pixels, file size: 116 KB, MIME type: image/jpeg)
Captions
DescriptionTvashtar Catena.jpg |
English: This mosaic of Tvashtar Catena (now called Tvashtar Paterae) on Jupiter's moon Io, taken by NASA's Galileo spacecraft on Oct. 16, 2001, completes a series of views depicting changes in the region over a period of nearly two years. A catena is a chain of volcanic craters.
Streaks of light and dark deposits that radiate from the central volcanic crater, or "patera," are remnants of a tall plume that was seen erupting in earlier images. This image and the others from November 1999, February 2000, December 2000, and August 2001 were all taken to study aspects of this ever-changing, extremely active volcanic field. Tvashtar is pictured here just 10 months after both the Galileo and Cassini spacecraft observed the eruption of a giant plume of volcanic gas emanating from it. The plume rose 385 kilometers (239 miles) high and blanketed terrain as far as 700 kilometers (435 miles) from its center. Tvashtar has erupted in a variety of styles over the course of almost two years: (1) a lava curtain 50 kilometers (30 miles) long in the center patera, (2) a giant lava flow or lava lake eruption in the giant patera at far left, and (3) the large plume eruption. Therefore, Galileo scientists expected that the lava flow margins or patera boundaries within Tvashtar would have changed drastically. However, the series of observations revealed little modification of this sort, suggesting that the intense eruptions at Tvashtar are confined by the local topography. North is to the top of the mosaic, which is approximately 300 kilometers(186 miles) across and has a resolution of 200 meters (656 feet) per picture element. |
Date | |
Source | http://photojournal.jpl.nasa.gov/catalog/?IDNumber=PIA03529 |
Author | NASA's Galileo spacecraft team |
Public domainPublic domainfalsefalse |
This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) | ||
Warnings:
|
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 23:58, 29 March 2005 | 1,215 × 823 (116 KB) | Smartech~commonswiki (talk | contribs) | {{PD-USGov-NASA}} |
You cannot overwrite this file.
File usage on Commons
The following page uses this file:
File usage on other wikis
The following other wikis use this file:
- Usage on bg.wikipedia.org
- Usage on br.wikipedia.org
- Usage on ca.wikipedia.org
- Usage on da.wikipedia.org
- Usage on it.wikipedia.org
- Usage on nn.wikipedia.org
- Usage on pt.wikipedia.org
- Usage on sl.wikipedia.org
- Usage on zh.wikipedia.org
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
_error | 0 |
---|