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- HD_102365 abstract "HR 4523 (66 G. Centauri) is a binary star system that is located in the northeastern part of the Centaurus constellation, at a distance of about 30.07 ly (9.22 pc) from the Solar System. The larger member of the system is a G-type star that is smaller than the Sun but of similar mass. It has a common proper motion companion that was discovered by W. J. Luyten in 1960. This M-type star appears to be in a wide orbit around the primary at a current separation of about 211 astronomical units (AU), (or 211 times the separation of the Earth from the Sun). By comparison, Neptune orbits at an average distance of 30 AU.The stellar classification for the primary star in this system is G2V; the same as the Sun. That of the red dwarf companion is M4V. The primary star has an estimated 86% to 89% the mass of the Sun, 96% of the Sun's radius, and 85% of the Sun's luminosity. It is a slow rotator, with a projected rotational velocity of 0.5 km/s. Age estimates range from 4.5–5.7 billion years (Gyr) up to 7.1 Gyr or 9.48 Gyr. Compared to the Sun, it only has about 52% of the abundance of elements other than hydrogen and helium; what astronomers term the metallicity of a star.This star system has a relatively large proper motion. The HR 4523 system is a member of the Epsilon Indi Moving Group, although it is most likely an interloper. (The star is older and has a different composition than the other group members.) It has space velocity components [U, V, W] = [−67, −40, +4] km/s.".
- HD_102365 wikiPageExternalLink hr4523ab.htm.
- HD_102365 wikiPageID "11421317".
- HD_102365 wikiPageLength "12604".
- HD_102365 wikiPageOutDegree "40".
- HD_102365 wikiPageRevisionID "668101735".
- HD_102365 wikiPageWikiLink Astronomical_unit.
- HD_102365 wikiPageWikiLink Binary_star.
- HD_102365 wikiPageWikiLink Bright_Star_Catalogue.
- HD_102365 wikiPageWikiLink Category:Centaurus_(constellation).
- HD_102365 wikiPageWikiLink Category:G-type_main-sequence_stars.
- HD_102365 wikiPageWikiLink Category:HR_objects.
- HD_102365 wikiPageWikiLink Category:Henry_Draper_Catalogue_objects.
- HD_102365 wikiPageWikiLink Category:Hipparcos_objects.
- HD_102365 wikiPageWikiLink Category:Planetary_systems.
- HD_102365 wikiPageWikiLink Category:Solar_analogs.
- HD_102365 wikiPageWikiLink Centaurus.
- HD_102365 wikiPageWikiLink Constellation.
- HD_102365 wikiPageWikiLink Cordoba_Durchmusterung.
- HD_102365 wikiPageWikiLink Debris_disk.
- HD_102365 wikiPageWikiLink Durchmusterung.
- HD_102365 wikiPageWikiLink Epsilon_Indi.
- HD_102365 wikiPageWikiLink General_Catalogue_of_Trigonometric_Parallaxes.
- HD_102365 wikiPageWikiLink Gliese-Jahreiss_catalogue.
- HD_102365 wikiPageWikiLink Gliese_Catalogue_of_Nearby_Stars.
- HD_102365 wikiPageWikiLink Gould_designation.
- HD_102365 wikiPageWikiLink Harvard_Revised_catalogue.
- HD_102365 wikiPageWikiLink Henry_Draper_Catalogue.
- HD_102365 wikiPageWikiLink Henry_Draper_catalogue.
- HD_102365 wikiPageWikiLink Hipparcos.
- HD_102365 wikiPageWikiLink Hipparcos_catalogue.
- HD_102365 wikiPageWikiLink Infrared.
- HD_102365 wikiPageWikiLink Infrared_excess.
- HD_102365 wikiPageWikiLink Luyten_Half-Second_catalogue.
- HD_102365 wikiPageWikiLink Luyten_Two-Tenths_catalogue.
- HD_102365 wikiPageWikiLink Metallicity.
- HD_102365 wikiPageWikiLink Neptune.
- HD_102365 wikiPageWikiLink Proper_motion.
- HD_102365 wikiPageWikiLink Red_dwarf.
- HD_102365 wikiPageWikiLink Smithsonian_Astrophysical_Observatory.
- HD_102365 wikiPageWikiLink Solar_System.
- HD_102365 wikiPageWikiLink Solar_luminosity.
- HD_102365 wikiPageWikiLink Solar_mass.
- HD_102365 wikiPageWikiLink Solar_radius.
- HD_102365 wikiPageWikiLink Space_velocity_(astronomy).
- HD_102365 wikiPageWikiLink Star_catalogue.
- HD_102365 wikiPageWikiLink Stellar_association.
- HD_102365 wikiPageWikiLink Stellar_classification.
- HD_102365 wikiPageWikiLink Stellar_kinematics.
- HD_102365 wikiPageWikiLink Stellar_rotation.
- HD_102365 wikiPageWikiLink Sun.
- HD_102365 wikiPageWikiLink Willem_Jacob_Luyten.
- HD_102365 wikiPageWikiLinkText "HD 102365".
- HD_102365 ageGyr "4.5".
- HD_102365 appmagV "4.88".
- HD_102365 aricns "904".
- HD_102365 bV "0.67".
- HD_102365 class "G2V/M4V".
- HD_102365 constell Centaurus.
- HD_102365 eccentricity "0.34".
- HD_102365 epoch "J2000".
- HD_102365 exoplanet "b".
- HD_102365 gravity "4.51".
- HD_102365 hasPhotoCollection HD_102365.
- HD_102365 luminosity "0.85".
- HD_102365 mass "0.05".
- HD_102365 mass "0.889".
- HD_102365 metalFe "−0.28".
- HD_102365 pError "0.22".
- HD_102365 parallax "108.45".
- HD_102365 period "122.1".
- HD_102365 propMoDec "403.67".
- HD_102365 propMoRa "−1530.99".
- HD_102365 radialV "15.3".
- HD_102365 radius "0.96".
- HD_102365 rotationalVelocity "0.5".
- HD_102365 semimajor "0.46".
- HD_102365 simbad "LHS+311".
- HD_102365 temperature "5643".
- HD_102365 uB "0.1".
- HD_102365 wikiPageUsesTemplate Template:Citation.
- HD_102365 wikiPageUsesTemplate Template:Convert.
- HD_102365 wikiPageUsesTemplate Template:Nearest_star_systems.
- HD_102365 wikiPageUsesTemplate Template:OrbitboxPlanet.
- HD_102365 wikiPageUsesTemplate Template:OrbitboxPlanet_begin.
- HD_102365 wikiPageUsesTemplate Template:Orbitbox_end.
- HD_102365 wikiPageUsesTemplate Template:Reflist.
- HD_102365 wikiPageUsesTemplate Template:Starbox_astrometry.
- HD_102365 wikiPageUsesTemplate Template:Starbox_begin.
- HD_102365 wikiPageUsesTemplate Template:Starbox_catalog.
- HD_102365 wikiPageUsesTemplate Template:Starbox_character.
- HD_102365 wikiPageUsesTemplate Template:Starbox_detail.
- HD_102365 wikiPageUsesTemplate Template:Starbox_end.
- HD_102365 wikiPageUsesTemplate Template:Starbox_observe.
- HD_102365 wikiPageUsesTemplate Template:Starbox_reference.
- HD_102365 wikiPageUsesTemplate Template:Stars_of_Centaurus.
- HD_102365 subject Category:Centaurus_(constellation).
- HD_102365 subject Category:G-type_main-sequence_stars.
- HD_102365 subject Category:HR_objects.
- HD_102365 subject Category:Henry_Draper_Catalogue_objects.