26 Aurigae

---

title: "26 Aurigae" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["b-type-main-sequence-stars", "g-type-giants", "binary-stars", "auriga", "durchmusterung-objects", "flamsteed-objects", "henry-draper-catalogue-objects", "hipparcos-objects", "bright-star-catalogue-objects", "suspected-variables"] description: "Star in the constellation Auriga" topic_path: "science/astronomy" source: "https://en.wikipedia.org/wiki/26_Aurigae" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Star in the constellation Auriga ::

name=26 Aurigae }} | epoch=J2000 | ra= | dec= | appmag_v=5.406 (6.29 / 6.21) | constell=Auriga | class=G8III + A1IV or B9.5V | r-i = | v-r = | b-v = +0.45 | u-b = +0.25 | variable=suspected | radial_v= | prop_mo_ra=−21.32 | prop_mo_dec=−10.10 | parallax= | p_error= | dist_pc=163 | absmag_v= | reference = | primary=26 Aur A | name=26 Aur B | period= | axis= | axis_unitless= | eccentricity= | inclination= | node= | periastron= | periarg= | component1= 26 Aur A | mass = 2.1 ± 1.0 | component2= 26 Aur B | mass2 = 3.0 ± 0.4 | names= | Simbad=26+Aur

26 Aurigae is a binary star system in the northern constellation of Auriga. It is visible to the naked eye as a faint star with an apparent visual magnitude of 5.41.

The distance to this system remains poorly constrained. The new Hipparcos reduction gives a parallax of . leading to a distance of being assumed in many texts. A distance of has been derived from fitting the spectrum.

26 Aurigae is a visual binary system, and the two stars orbit each other every 52.735 years with an ellipticity of 0.653 and an angular separation .

References

| last1=Eggleton | first1=P. P. | last2=Tokovinin | first2=A. A. | title=A catalogue of multiplicity among bright stellar systems | journal=Monthly Notices of the Royal Astronomical Society | volume=389 | issue=2 | pages=869–879 | date=September 2008 | doi=10.1111/j.1365-2966.2008.13596.x | doi-access=free | bibcode=2008MNRAS.389..869E | arxiv=0806.2878 | s2cid=14878976 }}

References

1. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics.
2. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics.
3. Rica Romero, F. M.. (2008). "Orbital Elements for BU 1240 AB. Nature of the C and D Components". Revista Mexicana de Astronomía y Astrofísica.
4. (1986). "Compilation of Eggen's UBV data, transformed to UBV (unpublished)". Catalogue of Eggen's UBV Data.
5. (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)". VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S.
6. (2002). "Spectral Classification of the Hot Components of a Large Sample of Stars with Composite Spectra, and Implication for the Absolute Magnitudes of the Cool Supergiant Components". The Astrophysical Journal Supplement Series.
7. (1997). "The Hipparcos and Tycho catalogues: astrometric and photometric star catalogues derived from the ESA Hipparcos Space Astrometry Mission". ESA Publications Division.
8. (2001). "The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog". The Astronomical Journal.

::callout[type=info title="Wikipedia Source"] This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page. ::