Omega2 Aquilae
star in the constellation Aquila
Omega2 Aquilae is a star in the equatorial constellation of Aquila, the eagle. Its name is a Bayer designation that is Latinized from ω2 Aquilae, and abbreviated Omega2 Aql or ω2 Aql. This star has an apparent visual magnitude of 6.0, which is close to the lower limit of detectability with the naked eye. According to the Bortle Dark-Sky Scale, this star can be viewed from dark rural skies. As the Earth orbits about the Sun, this star undergoes a parallax shift of 11.7 mas. This is equivalent to a physical distance of 279 light-years (86 parsecs) from Earth. The star is drifting closer to the Sun with a radial velocity of −26 km/s.
Analysis of the spectrum of this white-hued star shows it to match a stellar classification of A2 V, indicating it is an A-type main sequence star. (A 2001 study found a discrepant class of F0V.) It has about 2.25 the size and 2.1 times the mass of the Sun. The star is radiating 23.4 times the luminosity of the Sun from its photosphere at an effective temperature of 9,245 K, giving it the white hue of an A-type star.
Begin with the source’s own compact description: “Omega2 Aquilae” is star in the constellation Aquila. The dossier treats that line as a proposition to test through Omega2, Aquilae and star, not as a finished interpretation.
Why this record matters
The phrase “star in the constellation Aquila” 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.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 12, 2026. The linked authority identifier is Q3304210. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2001.
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.
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.
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Three-step research path
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- Expand the search: follow Omega2 Aquilae primary sources, Omega2 Aquilae archive and Omega2 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
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This entry incorporates text from “Omega2 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.