QS Aquilae
star in the constellation Aquila

QS Aquilae is a triple or quadruple star system consisting of an eclipsing binary in a 2.5 day orbit around which a third star orbits in 77 years. There is some indication that there is a fourth component with a period of roughly 18 years. Located in the constellation Aquila, its visual magnitude varies from 5.93 to 6.06, making it barely visible to the naked eye.
The star's variability was discovered photometrically by Paul Guthnick and Richard Prager in 1930. It was given its variable star designation in 1934.
The public source identifies “QS Aquilae” as star in the constellation Aquila. This brief keeps that definition visible, then builds a research path around Aquilae, star and constellation.
Why this record matters
A short description can identify a subject without explaining its stakes. For “QS Aquilae”, the useful work is to connect “star in the constellation Aquila” 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 Sep 14, 2026. The linked authority identifier is Q1748630. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1930 and 1934.
A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. 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
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- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “QS Aquilae”, its source revision and the description used here.
- Expand the search: follow QS Aquilae primary sources, QS Aquilae archive and Aquilae 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 “QS Aquilae”?
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Search terms from this dossier
This entry incorporates text from “QS Aquilae” 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.