PDS 110
star
PDS 110 is a young 11th magnitude star located approximately 1,130 light-years (350 parsecs) away in the constellation Orion. A series of eclipses was observed in 2008 and 2011, which may have been caused by dust from the star's circumstellar disk.
Description
PDS 110 is a young star still approaching the main sequence. It has been classified as a T Tauri star, or as a pre-main sequence star. The emission lines indicative of a T Tauri classification are somewhat weaker than a typical T Tauri star, interpreted as a post-T Tauri stage.
PDS 110 hosts a circumstellar disk.
2008-2011 eclipses
Brightness measurements from SuperWASP and KELT showed two similar reductions in brightness in November 2008 and January 2011, both with a maximal luminosity reduction of 30% and a duration of 25 days. These events were interpreted as transits of a structure with a period of 808 ± 2 days, corresponding to an orbital distance of about 2 AU. The large reduction in brightness could have happened due to a planet or brown dwarf with a circum-secondary disk of dust with a radius of 0.3 AU around a central object with a mass between 1.8 and 70 times the mass of Jupiter.
Another transit was predicted for September 2017, but nothing similar to the previous events was seen, ruling out a periodic event. A search of 50 years of archival data also did not find any similar eclipses.
This brief starts where responsible research should: with the source description of “PDS 110” as star. 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 star. 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 17, 2026. The linked authority identifier is Q30099356. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2008, 2011 and 2017.
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 “PDS 110”, its source revision and the description used here.
- Expand the search: follow PDS 110 primary sources, PDS 110 archive and star 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 “PDS 110”?
- What terminology or title could unlock a more precise catalogue search?
- Which cited source is closest to the event, object or claim?
Search terms from this dossier
This entry incorporates text from “PDS 110” 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.