Fig. 9
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Left panels: C/2024 G3 ATLAS observed by the SOHO spacecraft on 2025 Jan. 13.446-13.487 UT in four LASCO C3 passbands (Sun at bottom, images 1.2 × 107 km wide). The horizontal trail is visible in the orange passband only (540-640 nm). Right panel: SOHO image taken on 2025 Jan. 14.454 UT in the clear passband. The curved continuous lines are the predicted atomic neutral tails, from left to right: LiI tail (syndyne of β = 440); NaI tail (syndyne of β = 71); KI tail (syndyne of β = 53); FeI tail (syndyne of β = 6). Dotted line: comet orbit fitting the trail.
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