# The front displayed all five planets with their synodic cycles, as reconstructed in 2021.

> Most likely: The front displayed all five planets with their synodic cycles, as reconstructed in 2021.

Source: https://mysteriesdept.com/mysteries/antikythera-mechanism/answers/ANS0D3FQFJ200V8/the-front-displayed-all-five-planets-with-their-synodic  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Questions](https://mysteriesdept.com/questions)[Antikythera Mechanism](https://mysteriesdept.com/mysteries/antikythera-mechanism)[Did the front dial display the five planets, and how?](https://mysteriesdept.com/mysteries/antikythera-mechanism/questions/QST0D3FQ61C2VH1/did-the-front-dial-display-the-five-planets-and-how)Answer

Answer · Antikythera Mechanism

# The front displayed all five planets with their synodic cycles, as reconstructed in 2021.

The front displayed all five planets with their synodic cycles, as reconstructed in 2021.

**Most likely** Answers **1** questionPublished0

## Where it stands

**Most likely** Its tests partly supported it: one piece of evidence for, one against. It needs two reviews to be accepted.

## What it predicts

- The inscription's planetary cycles match the gear ratios the reconstruction requires.
- Surviving fittings on the front plate are consistent with the proposed gearing.

## What would rule it out

- The surviving front-plate fittings exclude the proposed assembly.

## Evidence 1 for · 1 against

[The back-cover inscription names the planets and the reconstruction fits the described cycles with plausible…](https://mysteriesdept.com/mysteries/antikythera-mechanism/evidence/EVD0D3FQFSW3J3H/the-back-cover-inscription-names-the-planets-and-the)

Suggestive

FOR

[No planetary gears survive, so the reconstruction rests on inscriptions and inference.](https://mysteriesdept.com/mysteries/antikythera-mechanism/evidence/EVD0D3FQG1P60CW/no-planetary-gears-survive-so-the-reconstruction-rests-on)

Supported

AGAINST

## The questions it answers

[Did the front dial display the five planets, and how?](https://mysteriesdept.com/mysteries/antikythera-mechanism/questions/QST0D3FQ61C2VH1/did-the-front-dial-display-the-five-planets-and-how)

Part of [Did the mechanism function as built?](https://mysteriesdept.com/mysteries/antikythera-mechanism/questions/QST0D3FQ59Y5GC6/did-the-mechanism-function-as-built)

Most likelyThe front displayed all five planets with their synodic cycles, as reconstructed in 2021

## Cite it

```
Mysteries Department. (2026). The front displayed all five planets with their synodic cycles, as reconstructed in 2021. [Answer ANS0D3FQFJ200V8]. https://mysteriesdept.com/r/ANS0D3FQFJ200V8
```

Key

**ANS** 0D3FQFJ200V8

Kind

Answer · hypothesis

Origin

Published

Version

1

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