Why it matters

Pwyll matters as a compact but expressive object, showing how impact form changes on an active icy surface.

What happenedA Europa crater with bright ejecta that helps read impact processes in the icy shell of an ocean-world candidate.
Why it mattersPwyll matters as a compact but expressive object, showing how impact form changes on an active icy surface.
How scientists knowGazetteer of Planetary Nomenclature; NASA Image and Video Library

Measurements and uncertainty

直径45 km
Depthnot listed
Agerelatively young icy crater
状态已确认
Coordinates25.200° S / 88.600° E
Record levelextended

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

科学档案

Bright ejecta and disrupted icy texture around the crater invite discussion of composition, ice reworking, and local surface history.

Data provenanceGazetteer of Planetary Nomenclature; NASA Image and Video Library

重建图廊

更多陨石坑视觉解读

如果已验证图像不足，档案会补充科学重建：不是用幻想替代事实，而是与来源清晰区分的视觉假设。

世界调色icy turquoise, deep space, and distant moons
Scientific reconstruction: Pwyll's bright ejecta on Europa's icy surface.
当前视觉预览基础图版：来源图像、轨道资料或编辑图版，视觉解读从这里开始。
Reverse reconstructionmoving from the present trace back to the impact event
Chronological inversionreading the object from future state back through earlier layers
The present as an archive of the futuretreating today's profile as evidence for future analysis

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 1997 and is listed in the Gazetteer of Planetary Nomenclature.

来源

CSVJSONPwyll on Europa. 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.
Gazetteer of Planetary NomenclatureInternational Astronomical Union / USGSNASA Image and Video LibraryNASA

Education mode

事实

  • Official diameter: about 45 km.
  • The name comes from Celtic mythology.
  • Scientifically interesting because impact interacts with an icy shell.
Glossaryejecta, impact melt, breccia, central peak, erosion
Classroom questionWhich evidence separates an impact crater from a volcanic caldera?
CompareOccator