Help Shape the Future of Space Exploration

Join The Planetary Society Now  arrow.png

Join our eNewsletter for updates & action alerts

    Please leave this field empty
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.
Contact us to request publication permission.

Latest Blog Posts

Jupiter's Great Red Spot

Posted 2015/12/07 06:59 CST | 1 comment

On the 20th anniversary of Galileo's orbit insertion around Jupiter, amateur image processor Björn Jónsson shares some of the mission's first images of Jupiter's iconic massive storm.

Mapping Europa

Posted 2015/02/18 01:38 CST | 2 comments

Several global maps have been made of Europa, but amateur image processor Björn Jónsson felt they could be improved—so he decided to make a new one.

Revisiting Uranus with Voyager 2

Posted 2014/12/10 10:44 CST | 2 comments

Amateur image processor Björn Jónsson brings us some new views of Uranus from reprocessed Voyager 2 data.

Older blog posts »

Latest Processed Space Images

Jupiter from Voyager 2

Jupiter from Voyager 2

Posted 2016/01/19 | 0 comments

This is a mosaic of 12 color images obtained by Voyager 2 on July 5, 1979 from a distance of 4.5 million km. The resolution is 45 km/pixel. Each color image was composed from orange and violet images plus synthetic green. The end result is approximately natural color and contrast.

This mosaic shows a number of interesting details. There are fairly irregular filamentary cloud structures in the north polar region, gravity waves at several locations near the equator, brown barges can be seen, big and bright plumes, various small spots and ovals and a turbulent region at lower right that is just west of the Great Red Spot. And perhaps most interesting: Amalthea is visible at lower left (it's very dark).

Gibbous Mimas

Gibbous Mimas

Posted 2016/01/18 | 0 comments

Cassini made its second-closest flyby of Saturn's moon Mimas on January 14, 2016. During this flyby, Cassini obtained a mosaic of Mimas' trailing hemisphere through several filters. Saturnshine is especially apparent in these images, resulting in beautiful images of a gibbous Mimas where the nightside is also clearly visible. This four-frame mosaic is comprised of images obtained during that flyby at a range of ~40,000 km. North is up and the mosaic is centered near longitude 270°.

Jupiter's Great Red Spot

Jupiter's Great Red Spot

Posted 2015/12/07 | 0 comments

3x2 'anniversary image mosaic' of the Great Red Spot (GRS) that Galileo obtained during its first orbit of Jupiter on June 26, 1996 from a distance of 1.8 million kilometers.

More pictures processed by Björn Jónsson »

Facebook Twitter Email RSS AddThis

Essential Advocacy

Our Advocacy Program 
provides each Society member 
a voice in the process.



Funding is critical. The more 
we have, the more effective 
we can be, translating into more 
missions, more science, 
and more exploration.

Donate

Featured Video

Intro Astronomy 2016. Class 12: Exoplanets, the Sun, and Solar Physics

Watch Now

Space in Images

Pretty pictures and
awe-inspiring science.

See More

Join the New Millennium Committee

Let’s invent the future together!

Become a Member

Connect With Us

Facebook, Twitter, YouTube and more…
Continue the conversation with our online community!