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Bjorn Jonsson

Björn Jónsson

Björn Jónsson (Iceland) is the developer of the IMG2PNG software, which batch-converts spacecraft image data to PNG format.  His website contains simulated views of other planets produced using image maps generated from space image data; most of his image processing work is posted only within unmannespaceflight.com or on this website. (UMSF Moderator: Bjorn Jonsson)

Unless otherwise specified, the work of Jonsson is shared on planetary.org under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.
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Latest Blog Posts

Producing global views of Vesta from archival data

Posted 2013/08/21 12:18 CDT | 3 comments

Björn Jónsson produces beautiful color and 3D global mosaics of Vesta from Dawn's archival data.

Voyager 1 revisited: Io and Europa transiting Jupiter

Posted 2013/01/22 06:04 CST | 0 comment

What is the highest resolution global Jupiter mosaic that includes a satellite transit that can be assembled from Voyager images? Satellite transits are especially beautiful when the resolution is high enough for some details to be visible on the satellites so I decided to check this. And I was remarkably lucky.

Pretty picture: Landsat view of southern Greenland

Posted 2012/11/13 05:24 CST | 0 comment

This is a very large (19000 pixels square) mosaic of the fjords and glaciers of southern Greenland. I had been interested for a long time in experimenting with the processing of Earth satellite imagery just to get a comparison to the other planets.

Older blog posts »

Latest Processed Space Images

Dark spots on Vesta

Dark spots on Vesta

Posted 2014/09/05 | 0 comments

One of the more intriguing aspects of Vesta as seen by Dawn is the "dark material" found across its surface. In most places, dark material is associated with craters. In this photo, the dark material shows up in the ejecta around two large impact craters, but the relationship between the dark stuff and the crater is not obvious. The left crater is the 17-kilometer-diameter Fulvia. In some places the dark material seems to be associated with small secondary craters, but in other places there is no obvious origin. This photo consists of three high-resolution images taken on December 20, 2011, March 13, 2012 and April 17, 2012, colorized with a lower-resolution image taken on September 30, 2011.

Aelia crater, Vesta

Aelia crater, Vesta

Posted 2014/09/05 | 0 comments

Aelia is a 4.3-kilometer-diameter crater 14 degrees south of Vesta's equator that shows intriguing variety in the albedo of its ejecta. Streaks of ejecta radiate in all directions, including down the slope of the adjacent Rufillia crater, which is 15.8 kilometers across. This photo is a mosaic of two images taken during the Low Altitude Mapping Orbit phase of Dawn's mission on January 10 and April 30, 2012, colorized with data taken during the High Altitude Mapping Orbit phase on on October 4, 2011.

High-resolution global Neptune mosaic with small storms

High-resolution global Neptune mosaic with small storms

Posted 2014/08/25 | 0 comments

This mosaic is composed of approximately 20 images taken through green or clear filters about 2 to 3 days prior to Voyager 2's closest approach. It has been colorized with lower-resolution data taken from farther away.

More pictures processed by Björn Jónsson »

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