Why it matters

Odysseus anchors the Saturn branch as a giant crater on an icy body: scale, preservation, and clear form.

What happenedOne of Tethys's largest craters, comparable in scale to the visual identity of the moon itself.
Why it mattersOdysseus anchors the Saturn branch as a giant crater on an icy body: scale, preservation, and clear form.
How scientists knowGazetteer of Planetary Nomenclature; NASA Image and Video Library

Measurements and uncertainty

直径445 km
Depthnot listed
Ageancient impact basin
状态已确认
Coordinates32.820° N / 128.890° W
Record levelextended

Extended record: core parameters have an editorial baseline, while age, depth, and preservation still require primary-source review.

科学档案

On small icy bodies, huge impacts can create structures occupying a large fraction of the disk and shaping how relief is read afterward.

Data provenanceGazetteer of Planetary Nomenclature; NASA Image and Video Library

Visual reconstruction

Reverse reconstruction → Chronological inversion → Bidirectional analysis → The present as an archive of the future

每张档案都需要视觉预览:现有图像、经过美学处理的来源,或科学重建图。

Reverse reconstructionmoving from the present trace back to the impact event
Chronological inversionreading the object from future state back through earlier layers
Bidirectional analysischecking past-to-present and present-to-past interpretations
The present as an archive of the futuretreating today's profile as evidence for future analysis

研究历史

The name was adopted by the IAU in 1982 and appears in the official nomenclature of Tethys.

来源

CSVJSONOdysseus on Tethys. Crater.world record. Last reviewed 2026-05-08.
Last reviewed
2026-05-08
Source baseline
Gazetteer of Planetary Nomenclature; NASA Image and Video Library
Uncertainty note
Extended record: core parameters have an editorial baseline, while age, depth, and preservation still require primary-source review.

Education mode

事实

  • Official diameter: about 445 km.
  • Named after the hero of the Odyssey.
  • Shows the scale of impacts on small icy bodies.
Glossaryejecta, impact melt, breccia, central peak, erosion
Classroom questionWhich evidence separates an impact crater from a volcanic caldera?
CompareOccator