Hubble image archive
Decagon on Saturn’s South Pole (Single Filter)
A single wavelength of light from NASA’s Hubble Space Telescope's Wide Field Camera 3 provides a particularly clear view of the 10-sided atmospheric wave discovered encircling Saturn’s south pole. The feature, labeled “decagon,” is embedded within one of Saturn’s powerful jet str...
- Date
- Sep 8, 2026
- Mission
- Hubble Space Telescope
- Archive ID
- decagon-on-saturns-south-pole-single-filter
A single wavelength of light from NASA’s Hubble Space Telescope's Wide Field Camera 3 provides a particularly clear view of the 10-sided atmospheric wave discovered encircling Saturn’s south pole. The feature, labeled “decagon,” is embedded within one of Saturn’s powerful jet streams. The wave is centered around 63 degrees south latitude, and its apparent position shifts slightly depending on the wavelength of light observed. Observations from Hubble at different wavelengths of light reveal the structure at different altitudes. Hubble observations also show that the feature was present as early as 2023 and has become more pronounced over subsequent years.
The “X” and dashed circle in the image represents where data was not captured by Hubble.
Image Details
About the Data
| Data Description | These images were created with Hubble data from proposal: 17843 (A. Simon). |
|---|---|
| Instrument | WFC3/UVIS |
| Exposure Dates | 29 Aug 2025 |
| Filters | F395N, F502N, F631N |
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Source
Image and source material are credited to the official mission archive linked below.
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