# The activity that produced the dips has ended or declined.

> Still possible: The activity that produced the dips has ended or declined.

Source: https://mysteriesdept.com/mysteries/tabbys-star/answers/ANS0D8E7KDM7HCY/the-activity-that-produced-the-dips-has-ended-or-declined  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

---

[Questions](https://mysteriesdept.com/questions)[Tabby's star (KIC 8462852)](https://mysteriesdept.com/mysteries/tabbys-star)[Has the dipping stopped, or does it come in episodes?](https://mysteriesdept.com/mysteries/tabbys-star/questions/QST0D8E77ET2CAQ/has-the-dipping-stopped-or-does-it-come-in-episodes)Answer

Answer · Tabby's star (KIC 8462852)

# The activity that produced the dips has ended or declined.

The activity that produced the dips has ended or declined.

**Still possible** Answers **1** questionInduced0

## Where it stands

**Still possible** Its test haven't settled it: two pieces of evidence for, one against. It needs two reviews to be accepted.

## What it predicts

- No dips deeper than about 0.5 per cent in future monitoring.

## What would rule it out

- A new deep dip.

## Evidence 2 for · 1 against

[No dips deeper than 0.5 per cent shorter than about half a day in TESS data from July 2019 to September 2022](https://mysteriesdept.com/mysteries/tabbys-star/evidence/EVD0D8E7KNE02N0/no-dips-deeper-than-0-5-per-cent-shorter-than-about-half-a)

Suggestive

FOR

[No dips to 0.5 per cent in the 2024 TESS sectors (81 and 82)](https://mysteriesdept.com/mysteries/tabbys-star/evidence/EVD0DDYFG8VM2NN/no-dips-to-0-5-per-cent-in-the-2024-tess-sectors-81-and-82)

Supported

FOR

[A 1.1 per cent symmetric dip on 3 September 2019 in TESS Sector 15](https://mysteriesdept.com/mysteries/tabbys-star/evidence/EVD0DDYFGRCSV6G/a-1-1-per-cent-symmetric-dip-on-3-september-2019-in-tess)

Supported

AGAINST

## Tested by 1 run

| Run | Measured | Result | Against | Decision | Date |
|---|---|---|---|---|---|
| Run | deepest box-dip SNR and depth per sector; recovery fraction per depth and duration | {'S014': {'deepest_snr': 5.2, 'scatter_pct': 0.106, 'deepest_depth_pct': 0.09}, 'S015': {'centre_utc': '2019-09-03T14:55', 'centre_btjd': 1730.121, 'deepest_snr': 76.2, 'scatter_pct': 0.123, 'deepest_depth_pct': 1.11, 'duration_days_box': 0.5}, 'S041': {'deepest_snr': 4.6, 'scatter_pct': 0.107}, 'S054': {'deepest_snr': 6.3, 'scatter_pct': 0.125, 'deepest_depth_pct': 0.17}, 'S055': {'deepest_snr': 4.9, 'scatter_pct': 0.108}, 'S081': {'deepest_snr': 4.2, 'scatter_pct': 0.176, 'deepest_depth_pct': 0.12, 'sap_bkg_decorrelated_deepest_snr': 7.9}, 'S082': {'deepest_snr': 3.5, 'scatter_pct': 0.159, 'sap_bkg_decorrelated_deepest_snr': 6.4}, 'recovery_2day_and_longer': 'about 0', 'recovery_0.5pct_1day_quiet_sectors': '0.90-1.00'} | yang2026 no dips > 0.5 per cent 2019-2022 with 0.56-day window; Sectors 81-82 not analysed | Sectors 14, 41, 54, 55, 81 and 82 show no dip of 0.5 per cent or deeper at 0.25-1 day durations, with 90-100 per cent recovery at that depth; the record of no short dips extends to August 2024. Sector 15 holds a 1.11 per cent symmetric dip on 2019-09-03 that the published 0.56-day-window analysis removed. The search is blind to dips of 2 days and longer. | |

## The questions it answers

[Has the dipping stopped, or does it come in episodes?](https://mysteriesdept.com/mysteries/tabbys-star/questions/QST0D8E77ET2CAQ/has-the-dipping-stopped-or-does-it-come-in-episodes)

Part of [What blocks the light during the deep, irregular dips?](https://mysteriesdept.com/mysteries/tabbys-star/questions/QST0D8E76FJ6B8S/what-blocks-the-light-during-the-deep-irregular-dips)

Most likelyDipping comes in episodes separated by years of quiet, with no strict period

## Cite it

```
Mysteries Department. (2026). The activity that produced the dips has ended or declined. [Answer ANS0D8E7KDM7HCY]. https://mysteriesdept.com/r/ANS0D8E7KDM7HCY
```

Key

**ANS** 0D8E7KDM7HCY

Kind

Answer · hypothesis

Origin

Induced

Version

1

Added by

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