Jupiter 360 Degree Rotation (walkman)

Jupiter 360 Degree Rotation

Acquisition type: Lucky imaging

My first attempt at a 360 degree planetary rotation. I imaged Jupiter over 3 nights (Aug 22--24) during its 2021 opposition from my backyard outside of Houston, TX. I was specifically trying to get enough coverage to create a full rotation. Luckily, I had 3 consecutive nights with mostly good seeing. I processed some of the capture files but was not able to work on all of them at the time as we were in the process of selling our house in Texas and moving to Hawaii. Fast forward 8 months and I picked up where I had left off and processed all of the data collected back in August.

I used WinJupos to derotate the individual images and to create Lambert cylindrical equal-area map tiles for the images selected for the 360 degree coverage. I then constructed a 2D map of Jupiter from these map tiles in PhotoShop CC 2019.   The construction of this map is the most time-consuming and tedious part of this process and I admit that my attempt here is far from perfect and I hopefully will revisit this process with better success in the future with a revision. The vertical darker zones are where my attempt to blend some of the individual map tiles fell a little short. There is also still a problem at the seam where the two ends of the 2D map join.   I also complicated things a bit while capturing the data as I used different equipment during the 3 nights as I was also trying out various imaging setups.

WinJupos was again used to create the final rotating animation showing a full rotation of Jupiter. I saved it as an animated GIF file as that is a file format that can be displayed in astrobin.   However, the animated GIF file from WinJupos, which played perfectly in Windows would not play completely in astrobin. It would play a few frames and then reset, never showing the complete rotation.

I found a solution by creating an AVI file from WinJupos and then using PIPP to input the AVI and output an animated GIF and this works as can be seen above.

Link to the 2D map if interested:    https://astrob.in/vk4hxv/0/      (Use back arrow to return to this image or open in a new window).

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