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- 39_Leonis abstract "39 Leonis is the Flamsteed designation for a star in the zodiac constellation of Leo. It has an apparent visual magnitude of 5.90, so, according to the Bortle scale, it is faintly visible from suburban skies at night. Measurements made with the Hipparcos spacecraft show an annual parallax shift of 0.04385″, which is equivalent to a distance of around 74.4 ly (22.8 pc) from the Sun.The stellar classification of 39 Leonis is F6 V, indicating it is a main sequence star. It shines with a luminosity more than double that of the Sun, although it has nearly the same mass and size. This is a mature star with an estimated age of 6.3 billion years. The abundance of elements other than hydrogen and helium is about half that in the Sun, making this a metal-poor star. The effective temperature of the stellar atmosphere is 6,118 K, giving it the yellow-white hued glow of an F-type star.Observations made with the Akari satellite at a wavelength of 18 μm show an excess of infrared emission. This suggests the presence of an inner debris disk orbiting the star at a distance greater than four astronomical units (AU). There was no significant excess found at 22 μm.A companion star is located at an angular separation of 7.72″ along a position angle of 302.7°—this corresponds to a projected physical separation of 175 AU. It is a red dwarf star with a classification of M1 and an apparent visual magnitude of 11.40.".
- 39_Leonis wikiPageID "40824433".
- 39_Leonis wikiPageLength "9726".
- 39_Leonis wikiPageOutDegree "33".
- 39_Leonis wikiPageRevisionID "640495862".
- 39_Leonis wikiPageWikiLink Akari_(satellite).
- 39_Leonis wikiPageWikiLink Angular_distance.
- 39_Leonis wikiPageWikiLink Angular_separation.
- 39_Leonis wikiPageWikiLink Apparent_magnitude.
- 39_Leonis wikiPageWikiLink Apparent_visual_magnitude.
- 39_Leonis wikiPageWikiLink Astronomical_unit.
- 39_Leonis wikiPageWikiLink Bortle_scale.
- 39_Leonis wikiPageWikiLink Bright_Star_Catalogue.
- 39_Leonis wikiPageWikiLink Category:Binary_stars.
- 39_Leonis wikiPageWikiLink Category:F-type_main-sequence_stars.
- 39_Leonis wikiPageWikiLink Category:Flamsteed_objects.
- 39_Leonis wikiPageWikiLink Category:Leo_(constellation).
- 39_Leonis wikiPageWikiLink Constellation.
- 39_Leonis wikiPageWikiLink Debris_disk.
- 39_Leonis wikiPageWikiLink Durchmusterung.
- 39_Leonis wikiPageWikiLink Effective_temperature.
- 39_Leonis wikiPageWikiLink F-type_star.
- 39_Leonis wikiPageWikiLink Flamsteed_designation.
- 39_Leonis wikiPageWikiLink Gliese_Catalogue_of_Nearby_Stars.
- 39_Leonis wikiPageWikiLink Henry_Draper_Catalogue.
- 39_Leonis wikiPageWikiLink Hipparcos.
- 39_Leonis wikiPageWikiLink Hipparcos_Catalogue.
- 39_Leonis wikiPageWikiLink Infrared_excess.
- 39_Leonis wikiPageWikiLink Leo_(constellation).
- 39_Leonis wikiPageWikiLink Main_sequence.
- 39_Leonis wikiPageWikiLink Main_sequence_star.
- 39_Leonis wikiPageWikiLink Metallicity.
- 39_Leonis wikiPageWikiLink Parallax.
- 39_Leonis wikiPageWikiLink Position_angle.
- 39_Leonis wikiPageWikiLink Red_dwarf.
- 39_Leonis wikiPageWikiLink Smithsonian_Astrophysical_Observatory_Star_Catalog.
- 39_Leonis wikiPageWikiLink Stellar_atmosphere.
- 39_Leonis wikiPageWikiLink Stellar_classification.
- 39_Leonis wikiPageWikiLink Zodiac.
- 39_Leonis wikiPageWikiLinkText "39 Leo".
- 39_Leonis wikiPageWikiLinkText "39 Leonis".
- 39_Leonis ageGyr "6.3".
- 39_Leonis appmagV "5.81".
- 39_Leonis bV "+0.50".
- 39_Leonis class "F6 V + M1".
- 39_Leonis component "39".
- 39_Leonis constell Leo_(constellation).
- 39_Leonis epoch "J2000".
- 39_Leonis gravity "4.29".
- 39_Leonis gravity "4.83".
- 39_Leonis hasPhotoCollection 39_Leonis.
- 39_Leonis luminosity "2.19".
- 39_Leonis mass "0.98".
- 39_Leonis metal2Fe "−0.33 ± 0.06".
- 39_Leonis metalFe "–0.27".
- 39_Leonis pError "0.36".
- 39_Leonis parallax "43.85".
- 39_Leonis propMoDec "–97.66".
- 39_Leonis propMoRa "–414.15".
- 39_Leonis radialV "+37.4".
- 39_Leonis radius "0.48".
- 39_Leonis radius "0.99".
- 39_Leonis rotationalVelocity "2.16".
- 39_Leonis temperature "3740".
- 39_Leonis temperature "6118".
- 39_Leonis uB "–0.05".
- 39_Leonis wikiPageUsesTemplate Template:Convert.
- 39_Leonis wikiPageUsesTemplate Template:Reflist.
- 39_Leonis wikiPageUsesTemplate Template:Sky.
- 39_Leonis wikiPageUsesTemplate Template:Star_systems_within_70–75_light-years.
- 39_Leonis wikiPageUsesTemplate Template:Starbox_astrometry.
- 39_Leonis wikiPageUsesTemplate Template:Starbox_begin.
- 39_Leonis wikiPageUsesTemplate Template:Starbox_catalog.
- 39_Leonis wikiPageUsesTemplate Template:Starbox_character.
- 39_Leonis wikiPageUsesTemplate Template:Starbox_detail.
- 39_Leonis wikiPageUsesTemplate Template:Starbox_end.
- 39_Leonis wikiPageUsesTemplate Template:Starbox_observe.
- 39_Leonis wikiPageUsesTemplate Template:Stars_of_Leo.
- 39_Leonis subject Category:Binary_stars.
- 39_Leonis subject Category:F-type_main-sequence_stars.
- 39_Leonis subject Category:Flamsteed_objects.
- 39_Leonis subject Category:Leo_(constellation).
- 39_Leonis hypernym Designation.
- 39_Leonis type CelestialBody.
- 39_Leonis type Place.
- 39_Leonis type Star.
- 39_Leonis type Location.
- 39_Leonis type Place.
- 39_Leonis type Thing.
- 39_Leonis comment "39 Leonis is the Flamsteed designation for a star in the zodiac constellation of Leo. It has an apparent visual magnitude of 5.90, so, according to the Bortle scale, it is faintly visible from suburban skies at night. Measurements made with the Hipparcos spacecraft show an annual parallax shift of 0.04385″, which is equivalent to a distance of around 74.4 ly (22.8 pc) from the Sun.The stellar classification of 39 Leonis is F6 V, indicating it is a main sequence star.".
- 39_Leonis label "39 Leonis".
- 39_Leonis sameAs 39_Leonis.
- 39_Leonis sameAs 39_Leonis.
- 39_Leonis sameAs m.0ynw_8j.
- 39_Leonis sameAs Q5652156.
- 39_Leonis sameAs Q5652156.
- 39_Leonis sameAs 獅子座39.
- 39_Leonis wasDerivedFrom 39_Leonis?oldid=640495862.
- 39_Leonis isPrimaryTopicOf 39_Leonis.
- 39_Leonis name "39 Leonis".