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Answer · HD 139139, the "Random Transiter"

Star B, the fainter K star, with occulters of one to two Jupiter radii or deep intrinsic dips.

Star B, the fainter K star, with occulters of one to two Jupiter radii or deep intrinsic dips.

Still possibleAnswers 1 questionPublished0

Where it stands

Still possibleIts test haven't settled it: no evidence yet. It needs two reviews to be accepted.

What it predicts

  • Resolved photometry shows dips of a few millimagnitudes on B.

What would rule it out

  • Resolved photometry showing B steady during dips.

Evidence none for · none against

Tested by 1 run

RunMeasuredResultAgainstDecisionDate
Runchi2 of stacked per-pixel deficits vs PRF patterns for A, B and column-only; robustness of chi2(B) - chi2(A){'col7_ppm': [153, 33], 'wings_ppm': [101, 71], 'baseline_features14': {'A': 11.6, 'B': 89.6, 'dof': 13, 'column_only': 12.9}, 'dchi2_B_minus_A_range_under_robustness': [-52, 84]}1000 random non-dip epochs, 5000 null stacksInconclusive. A vs B and real dimming vs column glitch can't be separated; the apparent exclusion of star B is not robust to B's position or the PSF model.

The questions it answers

Cite it

Mysteries Department. (2026). Star B, the fainter K star, with occulters of one to two Jupiter radii or deep intrinsic dips. [Answer ANS0D79S6F66ZK9]. https://mysteriesdept.com/r/ANS0D79S6F66ZK9
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