HD 34790
binary star system in the constellation Auriga
HD 34790 is a double-lined spectroscopic binary star system in the northern constellation of Auriga. It has a combined apparent magnitude of 5.66, which means it is faintly visible to the naked eye. Based upon observations by the Gaia space telescope, it is located around 317 light-years away. It has a combined stellar classification of A1Vs, matching that of an A-type main sequence star.
The two stars orbit each other with a period of only 2.15 days and an eccentricity of zero, indicating their orbit is close to circular. They are orbiting sufficiently close to each other that their rotation periods have most likely become tidally locked—meaning they always maintain the same face toward each other.
A faint third star 204″ away, shares a common proper motion and almost identical parallax. Any orbit is likely to take over a million years. The star is a faint red dwarf.
Begin with the source’s own compact description: “HD 34790” is binary star system in the constellation Auriga. The dossier treats that line as a proposition to test through binary, star and system, not as a finished interpretation.
Why this record matters
The phrase “binary star system in the constellation Auriga” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
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 Sep 14, 2026. The linked authority identifier is Q1748516. None of the 0 selected statements returned an explicit reference.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. 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.
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This entry incorporates text from “HD 34790” 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.