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Akatsuki Venus Climate Orbiter
JRehling
post Jan 17 2018, 10:08 PM
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These are wonderful. A similar palette is being used by many amateurs making IR/UV images at much lower resolution.
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jccwrt
post Jan 18 2018, 03:00 AM
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A couple of attempts to merge the sunlit cloud deck imaged in near-UV and near-IR with nighttime thermal data taken at the 2.26 micron wavelength, which appear to be the least overexposed of the 2 micron camera images. The two sets of images were taken up to 2 hours apart, so the geolocation of these images probably isn't super accurate but should be fairly representative. I've also added a heat colormap to colorize the thermal infrared data - the scale doesn't correspond to specific temperatures or anything, it's just there to enhance some of the detail present in those images while also emphasizing that it's thermal data.





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JRehling
post Jan 18 2018, 04:43 PM
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Nice display of IR! It certainly gives the impression that we should not touch Venus without protective gloves.

It's hard to tell from just a couple of images, but I'd like to see a global average of limb darkening. There should be some limb darkening but in any single image, the regional variations are a bigger factor.
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scalbers
post Jan 18 2018, 08:39 PM
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I would guess the limb darkening has an interesting dependence on phase angle and location along the limb. A fun simulation project as well.


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