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Is the 507 ppm, 2.2-hour dip in TESS Sector 91 at BTJD 3778.55 real, and is it on star A or star B?

Asked 29 Oct 2026 by ·Part of Do the dips still occur?·0 answers·0·0 following
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Why it matters

It is the only candidate dip since 2017. If real, it would be the first sign the dipping continued after CHEOPS saw none. Its false-alarm probability is 0.5–2 %, it coincides with a small background bump, and the noisier TARS light curve neither confirms nor rules it out. A single dip can't be confirmed by looking again, but its depth and shape can be checked against the K2 dips with more pipelines and full-frame photometry that models both stars.

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