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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 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 as seen by NASA’s Juno spacecraft

Not published yet

This animation shows how Jupiter appeared to NASA's Juno spacecraft when its JunoCam camera was imaging Jupiter at approximately 13:13:40 on February 2, 2017. The animation is based on the images obtained by JunoCam at this time. Due to the spacecraft's spin the camera sweeps across Jupiter's disc and is able to image a large area over a period of several seconds. For clarity this animation is slowed down by a factor of 1.8.

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.

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.

astronaut on Phobos
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