Björn Jónsson
@bjornjonsson.bsky.social
Software engineer interested in solar system exploration + many other things. Advanced amateur planetary image processor. Ruler of several non-existent planets.
Reposted by Björn Jónsson
'Sea Of Light'
Some high quality stills from the short film. Source photography by Zena Cardman on ISS is repaired, remastered & retimed.
The 4k UHD video with music by Jesse Gallagher can be viewed here...
youtu.be/0Izl-XNE9ZY
Some high quality stills from the short film. Source photography by Zena Cardman on ISS is repaired, remastered & retimed.
The 4k UHD video with music by Jesse Gallagher can be viewed here...
youtu.be/0Izl-XNE9ZY
December 22, 2025 at 12:36 PM
'Sea Of Light'
Some high quality stills from the short film. Source photography by Zena Cardman on ISS is repaired, remastered & retimed.
The 4k UHD video with music by Jesse Gallagher can be viewed here...
youtu.be/0Izl-XNE9ZY
Some high quality stills from the short film. Source photography by Zena Cardman on ISS is repaired, remastered & retimed.
The 4k UHD video with music by Jesse Gallagher can be viewed here...
youtu.be/0Izl-XNE9ZY
Reposted by Björn Jónsson
1/n
2 NEW epic images of Phobos over Mars just released by @esa.int Mars Express
This view is especially striking, with Phobos between the Tharsis volcanoes and Noctis Labyrinthus–Valles Marineris
Full resolution 300MP(!) & info on: flic.kr/p/2rMW4so
Credit: ESA/DLR/FUBerlin/AndreaLuck CC BY 🧪🔭
2 NEW epic images of Phobos over Mars just released by @esa.int Mars Express
This view is especially striking, with Phobos between the Tharsis volcanoes and Noctis Labyrinthus–Valles Marineris
Full resolution 300MP(!) & info on: flic.kr/p/2rMW4so
Credit: ESA/DLR/FUBerlin/AndreaLuck CC BY 🧪🔭
December 21, 2025 at 2:12 PM
1/n
2 NEW epic images of Phobos over Mars just released by @esa.int Mars Express
This view is especially striking, with Phobos between the Tharsis volcanoes and Noctis Labyrinthus–Valles Marineris
Full resolution 300MP(!) & info on: flic.kr/p/2rMW4so
Credit: ESA/DLR/FUBerlin/AndreaLuck CC BY 🧪🔭
2 NEW epic images of Phobos over Mars just released by @esa.int Mars Express
This view is especially striking, with Phobos between the Tharsis volcanoes and Noctis Labyrinthus–Valles Marineris
Full resolution 300MP(!) & info on: flic.kr/p/2rMW4so
Credit: ESA/DLR/FUBerlin/AndreaLuck CC BY 🧪🔭
No new JunoCam images have appeared since July but there are many older, spectacular images I still haven't processed. I processed this one recently. This is from the PJ14_21 raw image data obtained on July 16, 2018. Approx true color/contrast and enhanced versions. North is to the upper left.
December 22, 2025 at 10:31 PM
No new JunoCam images have appeared since July but there are many older, spectacular images I still haven't processed. I processed this one recently. This is from the PJ14_21 raw image data obtained on July 16, 2018. Approx true color/contrast and enhanced versions. North is to the upper left.
Reposted by Björn Jónsson
Martian moon Phobos from Mars Express' HRSC camera.
A color composite of three images taken through ND, GRN, and BL filters.
Largest crater with bright splotches is Stickney.
North is up.
Date: September 19, 2025.
Credit: ESA\DLR\FU Berlin\D. Machacek.
A color composite of three images taken through ND, GRN, and BL filters.
Largest crater with bright splotches is Stickney.
North is up.
Date: September 19, 2025.
Credit: ESA\DLR\FU Berlin\D. Machacek.
December 20, 2025 at 12:19 PM
Martian moon Phobos from Mars Express' HRSC camera.
A color composite of three images taken through ND, GRN, and BL filters.
Largest crater with bright splotches is Stickney.
North is up.
Date: September 19, 2025.
Credit: ESA\DLR\FU Berlin\D. Machacek.
A color composite of three images taken through ND, GRN, and BL filters.
Largest crater with bright splotches is Stickney.
North is up.
Date: September 19, 2025.
Credit: ESA\DLR\FU Berlin\D. Machacek.
Reposted by Björn Jónsson
3/3 If you’ve been following my work this won’t come as a surprise. I’ve once again updated the family portrait of the Solar System’s giant planets captured in near infrared by JWST
Full size+info flic.kr/p/2oUkYSY 🧪🔭
I’ll keep updating it whenever an improved version of these giants is released🙂
Full size+info flic.kr/p/2oUkYSY 🧪🔭
I’ll keep updating it whenever an improved version of these giants is released🙂
December 14, 2025 at 8:55 PM
3/3 If you’ve been following my work this won’t come as a surprise. I’ve once again updated the family portrait of the Solar System’s giant planets captured in near infrared by JWST
Full size+info flic.kr/p/2oUkYSY 🧪🔭
I’ll keep updating it whenever an improved version of these giants is released🙂
Full size+info flic.kr/p/2oUkYSY 🧪🔭
I’ll keep updating it whenever an improved version of these giants is released🙂
Reposted by Björn Jónsson
Reposted by Björn Jónsson
Photorealistic animation of a Carboniferous scene from 320 million years ago featuring Lepidodendron at various stages of growth. Not AI. Created with Blender, Photoshop, & Premiere Pro.
#carboniferous #lepidodendron #flora #prehistoric #artadventcalendar
vimeo.com/1089774111?f...
#carboniferous #lepidodendron #flora #prehistoric #artadventcalendar
vimeo.com/1089774111?f...
Lepidodendron forest rain
Photorealistic animation of a Carboniferous scene from 320 million years ago featuring Lepidodendron at various stages of growth.. Also featured is Noeggerathia…
vimeo.com
December 7, 2025 at 10:28 PM
Photorealistic animation of a Carboniferous scene from 320 million years ago featuring Lepidodendron at various stages of growth. Not AI. Created with Blender, Photoshop, & Premiere Pro.
#carboniferous #lepidodendron #flora #prehistoric #artadventcalendar
vimeo.com/1089774111?f...
#carboniferous #lepidodendron #flora #prehistoric #artadventcalendar
vimeo.com/1089774111?f...
Reposted by Björn Jónsson
Tried something new. I used WinJUPOS to de-rotate the #JWST #Saturn 🪐 images. Filters (F150W2, F164N) and F212N. Makes the storms and other features better visible.🔭 #astronomy
Observation date: 2024-11-29
Observation date: 2024-11-29
December 7, 2025 at 10:49 AM
Tried something new. I used WinJUPOS to de-rotate the #JWST #Saturn 🪐 images. Filters (F150W2, F164N) and F212N. Makes the storms and other features better visible.🔭 #astronomy
Observation date: 2024-11-29
Observation date: 2024-11-29
On this day back in 1995, the Galileo spacecraft performed its Jupiter orbit insertion burn. Due to problems with the tape recorder, no images were taken. However, these images showing the Great Red Spot were obtained on June 26, 1996 during the G1 orbit. The contrast and color has been exaggerated.
December 7, 2025 at 5:54 PM
On this day back in 1995, the Galileo spacecraft performed its Jupiter orbit insertion burn. Due to problems with the tape recorder, no images were taken. However, these images showing the Great Red Spot were obtained on June 26, 1996 during the G1 orbit. The contrast and color has been exaggerated.
Reposted by Björn Jónsson
Moving clouds slowly reveal sea ice twisting and turning hypnotically off the east coast of Greenland.
November 5, 2025 at 6:37 PM
Moving clouds slowly reveal sea ice twisting and turning hypnotically off the east coast of Greenland.
Reposted by Björn Jónsson
Fresh JWST view of Uranus taken Oct 6 2025 with NIRCam.
Full size & more info: flic.kr/p/2rByidu 🔭🧪
Credit: NASA/ESA/CSA/STScI/Andrea Luck CC BY
Proposal PI: Varun Bajaj
Proposal ID: 8975
Filters: F150W2-F162M, F410M
Full size & more info: flic.kr/p/2rByidu 🔭🧪
Credit: NASA/ESA/CSA/STScI/Andrea Luck CC BY
Proposal PI: Varun Bajaj
Proposal ID: 8975
Filters: F150W2-F162M, F410M
October 26, 2025 at 2:04 PM
Fresh JWST view of Uranus taken Oct 6 2025 with NIRCam.
Full size & more info: flic.kr/p/2rByidu 🔭🧪
Credit: NASA/ESA/CSA/STScI/Andrea Luck CC BY
Proposal PI: Varun Bajaj
Proposal ID: 8975
Filters: F150W2-F162M, F410M
Full size & more info: flic.kr/p/2rByidu 🔭🧪
Credit: NASA/ESA/CSA/STScI/Andrea Luck CC BY
Proposal PI: Varun Bajaj
Proposal ID: 8975
Filters: F150W2-F162M, F410M
Reposted by Björn Jónsson
Alrighty, ready to see something really cool? (and maybe a little nauseating)
The evolution of Hurricane Melissa's mesovortices at peak strength.
The evolution of Hurricane Melissa's mesovortices at peak strength.
October 29, 2025 at 8:10 PM
Alrighty, ready to see something really cool? (and maybe a little nauseating)
The evolution of Hurricane Melissa's mesovortices at peak strength.
The evolution of Hurricane Melissa's mesovortices at peak strength.
Reposted by Björn Jónsson
1/3 You might’ve seen last week’s newly released JWST data of Planetary Nebula NGC2440, here’s my take on it 😵
Full size 4K image and more info in this thread 🧵 🔭🧪
Credit: NASA/ESA/CSA/STScI/j. Roger/Andrea Luck CC BY
Full size 4K image and more info in this thread 🧵 🔭🧪
Credit: NASA/ESA/CSA/STScI/j. Roger/Andrea Luck CC BY
November 1, 2025 at 2:04 PM
1/3 You might’ve seen last week’s newly released JWST data of Planetary Nebula NGC2440, here’s my take on it 😵
Full size 4K image and more info in this thread 🧵 🔭🧪
Credit: NASA/ESA/CSA/STScI/j. Roger/Andrea Luck CC BY
Full size 4K image and more info in this thread 🧵 🔭🧪
Credit: NASA/ESA/CSA/STScI/j. Roger/Andrea Luck CC BY
Reposted by Björn Jónsson
CASSINI #SATURN MISSION
Planet: #Saturn
Start time: 2013-05-08
Instr.: #UVIS
Activity name: AURSTARE
t.me/landru79/838
NASA/JPL/j. ROGER
Planet: #Saturn
Start time: 2013-05-08
Instr.: #UVIS
Activity name: AURSTARE
t.me/landru79/838
NASA/JPL/j. ROGER
November 3, 2025 at 6:48 PM
CASSINI #SATURN MISSION
Planet: #Saturn
Start time: 2013-05-08
Instr.: #UVIS
Activity name: AURSTARE
t.me/landru79/838
NASA/JPL/j. ROGER
Planet: #Saturn
Start time: 2013-05-08
Instr.: #UVIS
Activity name: AURSTARE
t.me/landru79/838
NASA/JPL/j. ROGER
Reposted by Björn Jónsson
Another closeup of Saturn from Voyager 2 on August 21, 1981. This one shows a closer view of one of an eddy.
November 1, 2025 at 11:34 PM
Another closeup of Saturn from Voyager 2 on August 21, 1981. This one shows a closer view of one of an eddy.
Reposted by Björn Jónsson
Planet #Uranus 🪐 and inner moons with #JWST NIRCam 🔭 #planetsci Observation from this Monday (lol moon🌕day).
Filters: F150W2; F162M
Date: 2025-10-06 between 02:15:43 UT and 04:46:47 UT
Program: www.stsci.edu/jwst-program...
Filters: F150W2; F162M
Date: 2025-10-06 between 02:15:43 UT and 04:46:47 UT
Program: www.stsci.edu/jwst-program...
October 9, 2025 at 1:18 PM
Planet #Uranus 🪐 and inner moons with #JWST NIRCam 🔭 #planetsci Observation from this Monday (lol moon🌕day).
Filters: F150W2; F162M
Date: 2025-10-06 between 02:15:43 UT and 04:46:47 UT
Program: www.stsci.edu/jwst-program...
Filters: F150W2; F162M
Date: 2025-10-06 between 02:15:43 UT and 04:46:47 UT
Program: www.stsci.edu/jwst-program...
Reposted by Björn Jónsson
A distant shot of Saturn's system while Cassini was still was on its way. This was taken after they had resolved the condensation residue issue on the ISSNA optics by heating it, and still almost 2 years before Saturn arrival. Magnified 2x from original pixel scale.
Taken on 2002-10-21 14:43 UTC
Taken on 2002-10-21 14:43 UTC
September 20, 2025 at 1:25 PM
A distant shot of Saturn's system while Cassini was still was on its way. This was taken after they had resolved the condensation residue issue on the ISSNA optics by heating it, and still almost 2 years before Saturn arrival. Magnified 2x from original pixel scale.
Taken on 2002-10-21 14:43 UTC
Taken on 2002-10-21 14:43 UTC
Reposted by Björn Jónsson
A more distant shot of Io, moon of Jupiter, showing Loki Patera, the dark feature in the upper center, from Juno as it receded from Io on December 30th, 2023.
September 18, 2025 at 10:11 PM
A more distant shot of Io, moon of Jupiter, showing Loki Patera, the dark feature in the upper center, from Juno as it receded from Io on December 30th, 2023.
Reposted by Björn Jónsson
A few selected images of Mars processed from a new batch of data from the EXI camera aboard the Hope probe.
The dates and times of the images and some details are in the ALT text.
The dates and times of the images and some details are in the ALT text.
September 14, 2025 at 3:01 AM
A few selected images of Mars processed from a new batch of data from the EXI camera aboard the Hope probe.
The dates and times of the images and some details are in the ALT text.
The dates and times of the images and some details are in the ALT text.
I recently improved the color of my Voyager 1 map of Jupiter that I created in 2022. The main improvement is better synthetic green data (the original data doesn't include green).
Below are small previews of the old and new version of the map. The map is available here: bjj.mmedia.is/data/jupiter...
Below are small previews of the old and new version of the map. The map is available here: bjj.mmedia.is/data/jupiter...
September 15, 2025 at 6:47 PM
I recently improved the color of my Voyager 1 map of Jupiter that I created in 2022. The main improvement is better synthetic green data (the original data doesn't include green).
Below are small previews of the old and new version of the map. The map is available here: bjj.mmedia.is/data/jupiter...
Below are small previews of the old and new version of the map. The map is available here: bjj.mmedia.is/data/jupiter...
Reposted by Björn Jónsson
The sun was just 10 degrees above the horizon when NASA's Perseverance rover captured this morning view of Nili Planum yesterday. The rim of Jezero crater is casting a long shadow over the rover and foreground landscape. 🔭
Full res: flic.kr/p/2rt54pJ
Credit: NASA/JPL-Caltech/Simeon Schmauß
Full res: flic.kr/p/2rt54pJ
Credit: NASA/JPL-Caltech/Simeon Schmauß
September 13, 2025 at 9:54 PM
The sun was just 10 degrees above the horizon when NASA's Perseverance rover captured this morning view of Nili Planum yesterday. The rim of Jezero crater is casting a long shadow over the rover and foreground landscape. 🔭
Full res: flic.kr/p/2rt54pJ
Credit: NASA/JPL-Caltech/Simeon Schmauß
Full res: flic.kr/p/2rt54pJ
Credit: NASA/JPL-Caltech/Simeon Schmauß
(1/4) Test renders of Jupiter using my Voyager 1 global map (first image) and a version of the map with improved color (second image). Versions with and without enhanced contrast/colors are shown. The raw source data consists of orange and violet filtered images only.
September 3, 2025 at 9:20 PM
(1/4) Test renders of Jupiter using my Voyager 1 global map (first image) and a version of the map with improved color (second image). Versions with and without enhanced contrast/colors are shown. The raw source data consists of orange and violet filtered images only.
Reposted by Björn Jónsson
NASA released some shape models of four of Saturn's moons. These have every lump and bump; they're not simple spheres.
Here's a test render I did in #Blender showing #Mimas in false color - red is high, blue low. Clearly shows how non-spherical it is!
#sciart #spaceart
1/2
Here's a test render I did in #Blender showing #Mimas in false color - red is high, blue low. Clearly shows how non-spherical it is!
#sciart #spaceart
1/2
September 3, 2025 at 1:20 PM
Reposted by Björn Jónsson
#Hubble 🛰️🔭 images of #Saturn from yesterday, a 🧵
From proposal 17843 (PI: Amy Simon) archive.stsci.edu/proposal_sea...
First image with Filters F225W, F467M, F763M Observing start Time 20:24:08 to 20:28:15
From proposal 17843 (PI: Amy Simon) archive.stsci.edu/proposal_sea...
First image with Filters F225W, F467M, F763M Observing start Time 20:24:08 to 20:28:15
August 30, 2025 at 8:44 AM
#Hubble 🛰️🔭 images of #Saturn from yesterday, a 🧵
From proposal 17843 (PI: Amy Simon) archive.stsci.edu/proposal_sea...
First image with Filters F225W, F467M, F763M Observing start Time 20:24:08 to 20:28:15
From proposal 17843 (PI: Amy Simon) archive.stsci.edu/proposal_sea...
First image with Filters F225W, F467M, F763M Observing start Time 20:24:08 to 20:28:15
Reposted by Björn Jónsson
Today in 1979, Pioneer 11 was speeding away from Saturn, giving humanity a perspective from beyond the planet that it had never have. However, Saturn was also close to solar conjunction, which led to it being increasingly hard to transmit data. The right hand version shows how bad the dropouts were.
September 2, 2025 at 10:45 AM
Today in 1979, Pioneer 11 was speeding away from Saturn, giving humanity a perspective from beyond the planet that it had never have. However, Saturn was also close to solar conjunction, which led to it being increasingly hard to transmit data. The right hand version shows how bad the dropouts were.