# A long, thin cigar (axis ratio about 1:8 or more) tumbling near its lowest rotational energy state.

> Still possible: A long, thin cigar (axis ratio about 1:8 or more) tumbling near its lowest rotational energy state.

Source: https://mysteriesdept.com/mysteries/oumuamua/answers/ANS0CSKCE9W2G6M/a-long-thin-cigar-axis-ratio-about-1-8-or-more-tumbling-near  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Questions](https://mysteriesdept.com/questions)[1I/'Oumuamua](https://mysteriesdept.com/mysteries/oumuamua)[What shape was 'Oumuamua, and how did it spin?](https://mysteriesdept.com/mysteries/oumuamua/questions/QST0CSKBZWY4KE5/what-shape-was-oumuamua-and-how-did-it-spin)Answer

Answer · 1I/'Oumuamua

# A long, thin cigar (axis ratio about 1:8 or more) tumbling near its lowest rotational energy state.

A long, thin cigar (axis ratio about 1:8 or more) tumbling near its lowest rotational energy state.

**Still possible** Answers **1** questionPublished0

## Where it stands

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

## What it predicts

- Light-curve minima consistent with a prolate body seen side-on and end-on.

## What would rule it out

- A light-curve inversion that excludes prolate shapes at high confidence.

## Evidence 2 for · 1 against

[A 2.5-magnitude range implies a body about ten times longer than wide.](https://mysteriesdept.com/mysteries/oumuamua/evidence/EVD0CSKCEHP55TH/a-2-5-magnitude-range-implies-a-body-about-ten-times-longer)

Supported

FOR

[The body tumbles, with an axis ratio of at least 5:1.](https://mysteriesdept.com/mysteries/oumuamua/evidence/EVD0CSKCESG32C9/the-body-tumbles-with-an-axis-ratio-of-at-least-5-1)

Established

FOR

[A cigar of about 1:8 fits but is less probable than a disc (16 against 91 per cent) from the depth of the…](https://mysteriesdept.com/mysteries/oumuamua/evidence/EVD0CSKCF1A2JMK/a-cigar-of-about-1-8-fits-but-is-less-probable-than-a-disc)

Suggestive

AGAINST

## The questions it answers

[What shape was 'Oumuamua, and how did it spin?](https://mysteriesdept.com/mysteries/oumuamua/questions/QST0CSKBZWY4KE5/what-shape-was-oumuamua-and-how-did-it-spin)

Part of [What was 'Oumuamua made of?](https://mysteriesdept.com/mysteries/oumuamua/questions/QST0CSKBZN458NQ/what-was-oumuamua-made-of)

Open3 answers, none ahead

## Cite it

```
Mysteries Department. (2026). A long, thin cigar (axis ratio about 1:8 or more) tumbling near its lowest rotational energy state. [Answer ANS0CSKCE9W2G6M]. https://mysteriesdept.com/r/ANS0CSKCE9W2G6M
```

Key

**ANS** 0CSKCE9W2G6M

Kind

Answer · hypothesis

Origin

Published

Version

1

Added by

[apollo](https://mysteriesdept.com/u/apollo)

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