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Björn Jónsson

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)

Latest Blog Posts

Voyager 40th anniversary: Revisiting the Voyagers' planetary views

August 30, 2017

Björn Jónsson argues that even now, 40 years after Voyager 1 and 2 were launched, a lot of the data they returned is still of high interest.

New treasures from Juno: Jupiter dazzles during fourth close approach

March 27, 2017

Image processor Björn Jónsson shares some of his latest stunning images of Jupiter, created using data from NASA's Juno spacecraft.

A deep dive into the highest-resolution Voyager Jupiter data

September 14, 2016

A few weeks before the first Juno high resolution imaging, I decided to take a look at Voyager color images at various resolutions, with particular attention to high-resolution mosaics.

Latest Processed Space Images

Jupiter's limb

August 30, 2017

An approximately true color Voyager 1 mosaic showing Jupiter‘s limb. The resolution of the original imaging data is roughly 8 km/pixel. Jupiter‘s blue sky is visible at the limb.

Saturn's northern hemisphere from Voyager

August 30, 2017

A mosaic of 8 green filtered Voyager 2 narrow angle images obtained on August 21, 1981 when Voyager 2 was 4.9 million km from Saturn. The mosaic has been colorized from a lower resolutiom orange/green/blue color composite obtained at roughly the same time. The color should be fairly close to Saturn‘s true color.

Voyager 2 mosaic of Ganymede

August 30, 2017

This is a grayscale mosaic at a resolution of ~1 km/pixel that has been colorized from lower resolution (3 km/pixel) color images. The prominent bright feature near center is the crater Osiris. Its diameter is 107 km.

astronaut on Phobos
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