Gula (crater)
crater on Ganymede
Gula is a pedestal impact crater on Jupiter's moon Ganymede. Located immediately to the north of the similarly sized Achelous, both craters are surrounded by a thick ring of impact ejecta blasted out by their respective impact events. Gula is named after the Mesopotamian goddess of medicine Gula, with the name being adopted by the International Astronomical Union (IAU) in 1979.
Geology
Gula is roughly 38 kilometres (24 mi) in diameter and hosts a central peak. Its crater rim is mostly circular, although it has two straight rim segments. Like Achelous, Gula is located in a region of one of Ganymede's grooved terrains, with the surrounding grooves oriented in a northeast–southwest direction. It is located north of Aquarius Sulcus and is about two-thirds of the way about two-thirds of the way from Ganymede's equator to its north pole. Gula located within the Perrine quadrangle of Ganymede (designated Jg2).
One of Gula's linear crater rim segments is aligned parallel to the surrounding grooves. Compared to Achelous, Gula is older and more degraded, with its floor hosting several small craters.
This brief starts where responsible research should: with the source description of “Gula (crater)” as crater on Ganymede. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the general reference register because the source frames it as crater on Ganymede. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated May 31, 2026. The linked authority identifier is Q12766523. Authority coordinates are 64.150, 12.300. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1979.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Gula (crater)”, its source revision and the description used here.
- Expand the search: follow Gula (crater) primary sources, Gula (crater) archive and Gula research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Gula (crater)”?
- Which cited source is closest to the event, object or claim?
- What terminology or title could unlock a more precise catalogue search?
Search terms from this dossier
This entry incorporates text from “Gula (crater)” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.