WASP-39
star
WASP-39, also named Malmok, is a G-type main-sequence star about 702 light-years (215 parsecs) away in the constellation Virgo. With an apparent magnitude of 12.1, it is much too faint to be visible to the naked eye. The star is slightly smaller and cooler than the Sun. It hosts one known exoplanet, WASP-39b.
Nomenclature
The designation WASP-39 comes from the Wide Angle Search for Planets. Since the planet transits the star, the star is classified as a planetary transit variable and has received the variable star designation V732 Virginis.
This was one of the systems selected to be named in the 2019 NameExoWorlds campaign during the 100th anniversary of the IAU, which assigned each country a star and planet to be named. This system was assigned to Aruba. The approved names were Malmok for the star and Bocaprins for the planet, named after Malmok and Boca Prins, both beaches in Aruba.
Planetary system
The planet WASP-39b, later named Bocaprins, is a low-density hot Jupiter, about the mass of Saturn but larger, discovered in 2011 by the Wide Angle Search for Planets using the transit method.
The public source identifies “WASP-39” as star. This brief keeps that definition visible, then builds a research path around WASP-39 and star.
Why this record matters
A short description can identify a subject without explaining its stakes. For “WASP-39”, the useful work is to connect “star” to the records capable of establishing context and consequence.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Apr 15, 2026. The linked authority identifier is Q4052842. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2019 and 2011.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. 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 “WASP-39”, its source revision and the description used here.
- Expand the search: follow WASP-39 primary sources, WASP-39 archive and WASP-39 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 “WASP-39”?
- Which institution is responsible for the underlying evidence?
- What terminology or title could unlock a more precise catalogue search?
Search terms from this dossier
This entry incorporates text from “WASP-39” 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.