QuestionsHD 139139, the "Random Transiter"Are the 28 dips real changes in starlight, or an instrumental effect?Answer
Answer · HD 139139, the "Random Transiter"
The dips are astrophysical, on star A or star B.
The dips are astrophysical, on star A or star B.
Where it stands
Most likelyIts test partly supported it: three pieces of evidence for, none against. It needs two reviews to be accepted.
What it predicts
- The dips appear in independent reductions (K2SFF, EVEREST, Kepler pipeline).
- The flux centroid does not move during dips.
- Dips recur in later sensitive photometry of the pair.
What would rule it out
- Later monitoring at sufficient precision, over several weeks, that finds no dips; or an identified detector or pointing effect that reproduces them.
Evidence 3 for · none against
FOR
Tested by 1 run
| Run | Measured | Result | Against | Decision | Date |
|---|---|---|---|---|---|
| Run | dips vs sign-flipped bumps at >=5.5 sigma; published dips recovered | {'EVEREST': [19, 4], 'K2SFF_all': [23, 12], 'K2SFF_ge1.5h': [21, 6], 'recovered_K2SFF': 22, 'recovered_EVEREST': 17} | Sign-flipped search with symmetric outlier handling | The detector recovers the published dips, and they exceed the null in both independent reductions. |
The questions it answers
Most likelyThe dips are astrophysical, on star A or star B
Cite it
Mysteries Department. (2026). The dips are astrophysical, on star A or star B. [Answer ANS0D79S0VG5ZJW]. https://mysteriesdept.com/r/ANS0D79S0VG5ZJW
@misc{mysteriesdept_ans0d79s0vg5zjw,
title = {The dips are astrophysical, on star A or star B.},
author = {{Mysteries Department}},
year = {2026},
note = {Answer, catalog key ANS0D79S0VG5ZJW},
url = {https://mysteriesdept.com/r/ANS0D79S0VG5ZJW}
}