Neptune Temperature: Figure 1 (IMAGE)

University of Leicester

Neptune Temperature: Figure 1

Caption

Observed changes in Neptune’s thermal-infrared brightness, a measure of temperature in Neptune’s atmosphere. The plot shows the relative change in the thermal-infrared brightness from Neptune’s stratosphere with time for all existing images taken by ground-based telescopes. Brighter images are interpreted as warmer. Corresponding thermal-infrared images (top) at wavelengths of ~12 µm show Neptune’s appearance in 2006, 2009, 2018 (observed by the European Southern Observatory’s Very Large Telescope’s VISIR instrument), and 2020 (observed by Subaru’s COMICS instrument). The south pole appears to have become dramatically warmer in just the past few years. Credit: Michael Roman/NASA/JPL/Voyager-ISS/Justin Cowart

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Michael Roman/NASA/JPL/Voyager-ISS/Justin Cowart

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Credit: Michael Roman/NASA/JPL/Voyager-ISS/Justin Cowart

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