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- Xi_Geminorum abstract "Xi Geminorum (ξ Gem) is a star in the zodiac constellation Gemini with the traditional name Alzirr. It forms one of the four feet of the outline demarcating the Gemini twins. The star has an apparent visual magnitude of 3.35, which is bright enough for it to be seen with the naked eye. From parallax measurements, its distance from the Earth can be estimated as 58.7 light-years (18.0 parsecs).Alzirr has a stellar classification of F5 IV, which is subgiant star that is in the process of evolving away from the main sequence of stars like the Sun. It has about 162% of the Sun's mass and is radiating more than 11 times the luminosity of the Sun. This energy is being emitted from the outer envelope of the star at an effective temperature of 6,464 K. This causes the star to take on the yellow-white hue common to F-type stars.X-ray emission has been detected from this star, which has an estimated X-ray luminosity of 1.06 × 1029 erg s–1. It has the spectroscopic signature of a rapidly rotating star, with a projected rotational velocity of about 66 km s–1. Although generally considered a single star, there is some evidence that it may instead be a spectroscopic binary system consisting of two component stars of equal mass.".
- Xi_Geminorum thumbnail Gemini_IAU.svg?width=300.
- Xi_Geminorum wikiPageExternalLink alzirr.html.
- Xi_Geminorum wikiPageID "3116364".
- Xi_Geminorum wikiPageRevisionID "602424623".
- Xi_Geminorum absmagV "2.14".
- Xi_Geminorum ageGyr "1.5".
- Xi_Geminorum appmagV "3.35".
- Xi_Geminorum bV "+0.43".
- Xi_Geminorum class "F5 IV".
- Xi_Geminorum constell Gemini_(constellation).
- Xi_Geminorum epoch Epoch_(astronomy).
- Xi_Geminorum equinox "J2000.0".
- Xi_Geminorum hasPhotoCollection Xi_Geminorum.
- Xi_Geminorum pError "0.19".
- Xi_Geminorum parallax "55.56".
- Xi_Geminorum propMoDec "–190.55".
- Xi_Geminorum propMoRa "–115.73".
- Xi_Geminorum radialV "+25.6".
- Xi_Geminorum uB "+0.06".
- Xi_Geminorum subject Category:Bayer_objects.
- Xi_Geminorum subject Category:F-type_subgiants.
- Xi_Geminorum subject Category:Gemini_(constellation).
- Xi_Geminorum subject Category:Gliese_and_GJ_objects.
- Xi_Geminorum subject Category:Stars_with_proper_names.
- Xi_Geminorum type BayerObjects.
- Xi_Geminorum type CelestialBody109239740.
- Xi_Geminorum type NaturalObject100019128.
- Xi_Geminorum type Object100002684.
- Xi_Geminorum type PhysicalEntity100001930.
- Xi_Geminorum type Star109444100.
- Xi_Geminorum type StarsWithProperNames.
- Xi_Geminorum type Whole100003553.
- Xi_Geminorum type CelestialBody.
- Xi_Geminorum type Star.
- Xi_Geminorum type PhysicalBody.
- Xi_Geminorum comment "Xi Geminorum (ξ Gem) is a star in the zodiac constellation Gemini with the traditional name Alzirr. It forms one of the four feet of the outline demarcating the Gemini twins. The star has an apparent visual magnitude of 3.35, which is bright enough for it to be seen with the naked eye.".
- Xi_Geminorum label "Alzir".
- Xi_Geminorum label "Alzir".
- Xi_Geminorum label "Alzirr".
- Xi_Geminorum label "Xi Geminorum".
- Xi_Geminorum label "Xi Geminorum".
- Xi_Geminorum label "Xi Geminorum".
- Xi_Geminorum label "Xi Geminorum".
- Xi_Geminorum label "井宿四".
- Xi_Geminorum sameAs Alzir.
- Xi_Geminorum sameAs Alzir.
- Xi_Geminorum sameAs Xi_Geminorum.
- Xi_Geminorum sameAs Xi_Geminorum.
- Xi_Geminorum sameAs Xi_Geminorum.
- Xi_Geminorum sameAs Alzirr.
- Xi_Geminorum sameAs Xi_Geminorum.
- Xi_Geminorum sameAs m.08sghf.
- Xi_Geminorum sameAs Q450766.
- Xi_Geminorum sameAs Q450766.
- Xi_Geminorum sameAs Xi_Geminorum.
- Xi_Geminorum wasDerivedFrom Xi_Geminorum?oldid=602424623.
- Xi_Geminorum depiction Gemini_IAU.svg.
- Xi_Geminorum isPrimaryTopicOf Xi_Geminorum.
- Xi_Geminorum name "Xi Geminorum".
