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- Pi3_Orionis abstract "Pi3 Orionis (π3 Ori, π3 Orionis) is the Bayer designation for a star in the equatorial constellation of Orion. It has the traditional name of Tabit and the Flamsteed designation 1 Orionis. At an apparent visual magnitude of 3.16, it is readily visible to the naked eye. Pi3 Orionis is the brightest star in the lion's hide (or shield) that Orion is holding. The distance to this star, as measured using the parallax technique, is 26.32 light-years (8.07 parsecs). Though no extrasolar planets have been observed around Pi3 Orionis, the star is considered a prime location for planets as small as the Earth.Pi3 Orionis is a main-sequence star of spectral type F6 V. Since 1943, the spectrum of this star has served as one of the stable anchor points by which other stars are classified. Compared to the Sun, it has about 124% of the mass, 132% of the radius, and nearly 3 times the luminosity. This energy is being radiated from the star's outer atmosphere at an effective temperature of 6,516 K, giving it the yellow-white glow of an F-type star. Pi3 Orionis is most likely single; a nearby star is probably an optical companion.Although a periodicity of 73.26 days has been observed in the star's radial velocity, it seems likely to be bound more to stellar activity than to a planetary object in close orbit. No substellar companion has been detected so far around Pi3 Orionis and the McDonald Observatory team has set limits to the presence of one or more planets with masses between 0.84 and 46.7 Jupiter masses and average separations spanning between 0.05 and 5.2 astronomical units. Thus, so far it appears that an Earth-like planet could easily orbit the star without any complications caused by a gravitationally perturbing body.".
- Pi3_Orionis thumbnail Orion_constellation_map.png?width=300.
- Pi3_Orionis wikiPageExternalLink pi3ori2.htm.
- Pi3_Orionis wikiPageID "1595585".
- Pi3_Orionis wikiPageRevisionID "605910309".
- Pi3_Orionis absmagV "3.65".
- Pi3_Orionis ageGyr "1.4".
- Pi3_Orionis appmagV "3.16".
- Pi3_Orionis bV "+0.46".
- Pi3_Orionis class "F6 V".
- Pi3_Orionis constell Orion_(constellation).
- Pi3_Orionis epoch Epoch_(astronomy).
- Pi3_Orionis gravity "4.4".
- Pi3_Orionis hasPhotoCollection Pi3_Orionis.
- Pi3_Orionis mass "1.236".
- Pi3_Orionis metalFe "0.02".
- Pi3_Orionis pError "0.17".
- Pi3_Orionis parallax "123.94".
- Pi3_Orionis propMoDec "11.21".
- Pi3_Orionis propMoRa "464.06".
- Pi3_Orionis radialV "24.1".
- Pi3_Orionis rotationalVelocity "17".
- Pi3_Orionis uB "+0.00".
- Pi3_Orionis variable "Suspected".
- Pi3_Orionis subject Category:Bayer_objects.
- Pi3_Orionis subject Category:F-type_main-sequence_stars.
- Pi3_Orionis subject Category:Flamsteed_objects.
- Pi3_Orionis subject Category:Objects_within_100_ly_of_Earth.
- Pi3_Orionis subject Category:Orion_(constellation).
- Pi3_Orionis subject Category:Stars_with_proper_names.
- Pi3_Orionis subject Category:Suspected_variables.
- Pi3_Orionis type CelestialBody.
- Pi3_Orionis type Star.
- Pi3_Orionis type PhysicalBody.
- Pi3_Orionis comment "Pi3 Orionis (π3 Ori, π3 Orionis) is the Bayer designation for a star in the equatorial constellation of Orion. It has the traditional name of Tabit and the Flamsteed designation 1 Orionis. At an apparent visual magnitude of 3.16, it is readily visible to the naked eye. Pi3 Orionis is the brightest star in the lion's hide (or shield) that Orion is holding. The distance to this star, as measured using the parallax technique, is 26.32 light-years (8.07 parsecs).".
- Pi3_Orionis label "Pi3 Orionis".
- Pi3_Orionis label "Pi3 Orionis".
- Pi3_Orionis label "Pi3 Orionis".
- Pi3_Orionis label "Pi3 Orionis".
- Pi3_Orionis label "Pi3 Orionis".
- Pi3_Orionis label "Pi3 Orionis".
- Pi3_Orionis label "Tabit".
- Pi3_Orionis label "Tabit".
- Pi3_Orionis label "オリオン座パイ3星".
- Pi3_Orionis label "參旗六".
- Pi3_Orionis sameAs Pi3_Orionis.
- Pi3_Orionis sameAs Tabit.
- Pi3_Orionis sameAs Pi3_Orionis.
- Pi3_Orionis sameAs Pi3_Orionis.
- Pi3_Orionis sameAs Pi3_Orionis.
- Pi3_Orionis sameAs オリオン座パイ3星.
- Pi3_Orionis sameAs 타비트.
- Pi3_Orionis sameAs Tabit.
- Pi3_Orionis sameAs Pi3_Orionis.
- Pi3_Orionis sameAs Pi3_Orionis.
- Pi3_Orionis sameAs m.05f90j.
- Pi3_Orionis sameAs Q14216.
- Pi3_Orionis sameAs Q14216.
- Pi3_Orionis wasDerivedFrom Pi3_Orionis?oldid=605910309.
- Pi3_Orionis depiction Orion_constellation_map.png.
- Pi3_Orionis isPrimaryTopicOf Pi3_Orionis.
- Pi3_Orionis name "Pi3 Orionis".
