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K2-138 g: Spitzer Spots a Sixth Planet for the Citizen Science System

25 May 2021, 16:00 UTC
K2-138 g: Spitzer Spots a Sixth Planet for the Citizen Science System
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Kevin K. Hardegree-Ullman et al 2021 AJ 161 219
Spitzer photometry has been used to validate a sixth planet in the planetary system K2-138, which had previously been shown by citizen science discoveries to contain one super-Earth and four sub-Neptunes.

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