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- Delta2_Lyrae abstract "Delta2 Lyrae (δ2 Lyr) is a 4th magnitude star in the constellation Lyra, approximately 900 light years away from Earth. It is one of the M4II spectral standard stars, meaning it is a bright giant star with a surface temperature around 3,600 kelvins. It puts out more energy than 10,000 suns, although more than 90% of it at longer than visual wavelengths. Direct angular measurements, combined with the Hipparcos parallax, give a radius of 1.1- 1.3astronomical units, comparable to the size calculated from other observed data.It began life as a hot blue main sequence star, but now is a large cool asymptotic giant branch star with a degenerate helium core. It is a semi-regular variable star that has its brightness change by 0.2 magnitudes over an ill-defined period. Delta2 Lyrae was once thought to form a visual binary with the star Delta1 Lyrae, but it does not, only appearing to do so if seen from earth's direction.The spectral type of the nearby star system CCDM J18545+3654BC suggests that they are at the same distance as Delta2 Lyrae, which could mean that the three stars form a triple star system. In this case, CCDM J18545+3654BC would be 24,000 AU away from Delta2 Lyrae, and it would take 24,000 years for it to make an orbit. The two stars in the CCDM J18545+3654BC system take at least 10,500 years to make an orbit and are separated by 600AU.Delta2 Lyrae is the brightest member of the scattered open cluster Stephenson 1.".
- Delta2_Lyrae wikiPageID "13743640".
- Delta2_Lyrae wikiPageLength "5656".
- Delta2_Lyrae wikiPageOutDegree "27".
- Delta2_Lyrae wikiPageRevisionID "683134191".
- Delta2_Lyrae wikiPageWikiLink Astronomical_unit.
- Delta2_Lyrae wikiPageWikiLink Asymptotic_giant_branch.
- Delta2_Lyrae wikiPageWikiLink Bonner_Durchmusterung.
- Delta2_Lyrae wikiPageWikiLink Bright_Star_Catalogue.
- Delta2_Lyrae wikiPageWikiLink Bright_giant.
- Delta2_Lyrae wikiPageWikiLink CCDM_J18545+3654BC.
- Delta2_Lyrae wikiPageWikiLink Category:Bayer_objects.
- Delta2_Lyrae wikiPageWikiLink Category:Durchmusterung_objects.
- Delta2_Lyrae wikiPageWikiLink Category:Flamsteed_objects.
- Delta2_Lyrae wikiPageWikiLink Category:HR_objects.
- Delta2_Lyrae wikiPageWikiLink Category:Henry_Draper_Catalogue_objects.
- Delta2_Lyrae wikiPageWikiLink Category:Hipparcos_objects.
- Delta2_Lyrae wikiPageWikiLink Category:Lyra_(constellation).
- Delta2_Lyrae wikiPageWikiLink Degenerate_matter.
- Delta2_Lyrae wikiPageWikiLink Delta1_Lyrae.
- Delta2_Lyrae wikiPageWikiLink Durchmusterung.
- Delta2_Lyrae wikiPageWikiLink Earth.
- Delta2_Lyrae wikiPageWikiLink Harvard_Revised_catalogue.
- Delta2_Lyrae wikiPageWikiLink Henry_Draper_Catalogue.
- Delta2_Lyrae wikiPageWikiLink Henry_Draper_catalogue.
- Delta2_Lyrae wikiPageWikiLink Hipparcos.
- Delta2_Lyrae wikiPageWikiLink Hipparcos_catalogue.
- Delta2_Lyrae wikiPageWikiLink Kelvin.
- Delta2_Lyrae wikiPageWikiLink Kelvins.
- Delta2_Lyrae wikiPageWikiLink Light-year.
- Delta2_Lyrae wikiPageWikiLink Light_year.
- Delta2_Lyrae wikiPageWikiLink Lyra.
- Delta2_Lyrae wikiPageWikiLink Lyra_(constellation).
- Delta2_Lyrae wikiPageWikiLink Open_cluster.
- Delta2_Lyrae wikiPageWikiLink Smithsonian_Astrophysical_Observatory_Star_Catalog.
- Delta2_Lyrae wikiPageWikiLink Star_system.
- Delta2_Lyrae wikiPageWikiLink Variable_star.
- Delta2_Lyrae wikiPageWikiLink Visual_binary.
- Delta2_Lyrae wikiPageWikiLinkText "Delta2 Lyrae".
- Delta2_Lyrae wikiPageWikiLinkText "δ² Lyrae".
- Delta2_Lyrae appmagV "4.3".
- Delta2_Lyrae bV "+1.68".
- Delta2_Lyrae class "M4 II".
- Delta2_Lyrae constell Lyra.
- Delta2_Lyrae constell Lyra_(constellation).
- Delta2_Lyrae epoch "J2000.0".
- Delta2_Lyrae gravity "0".
- Delta2_Lyrae hasPhotoCollection Delta2_Lyrae.
- Delta2_Lyrae luminosity "12900".
- Delta2_Lyrae mass "7.3".
- Delta2_Lyrae pError "0.18".
- Delta2_Lyrae parallax "4.43".
- Delta2_Lyrae propMoDec "4.06".
- Delta2_Lyrae propMoRa "−7.36".
- Delta2_Lyrae radialV "-25.55".
- Delta2_Lyrae radius "286".
- Delta2_Lyrae temperature "3550".
- Delta2_Lyrae uB "+1.65".
- Delta2_Lyrae wikiPageUsesTemplate Template:Reflist.
- Delta2_Lyrae wikiPageUsesTemplate Template:Starbox_astrometry.
- Delta2_Lyrae wikiPageUsesTemplate Template:Starbox_begin.
- Delta2_Lyrae wikiPageUsesTemplate Template:Starbox_catalog.
- Delta2_Lyrae wikiPageUsesTemplate Template:Starbox_character.
- Delta2_Lyrae wikiPageUsesTemplate Template:Starbox_detail.
- Delta2_Lyrae wikiPageUsesTemplate Template:Starbox_end.
- Delta2_Lyrae wikiPageUsesTemplate Template:Starbox_observe.
- Delta2_Lyrae wikiPageUsesTemplate Template:Starbox_reference.
- Delta2_Lyrae wikiPageUsesTemplate Template:Stars_of_Lyra.
- Delta2_Lyrae subject Category:Bayer_objects.
- Delta2_Lyrae subject Category:Durchmusterung_objects.
- Delta2_Lyrae subject Category:Flamsteed_objects.
- Delta2_Lyrae subject Category:HR_objects.
- Delta2_Lyrae subject Category:Henry_Draper_Catalogue_objects.
- Delta2_Lyrae subject Category:Hipparcos_objects.
- Delta2_Lyrae subject Category:Lyra_(constellation).
- Delta2_Lyrae hypernym Star.
- Delta2_Lyrae type CelestialBody.
- Delta2_Lyrae type Place.
- Delta2_Lyrae type Star.
- Delta2_Lyrae type Location.
- Delta2_Lyrae type Place.
- Delta2_Lyrae type Thing.
- Delta2_Lyrae comment "Delta2 Lyrae (δ2 Lyr) is a 4th magnitude star in the constellation Lyra, approximately 900 light years away from Earth. It is one of the M4II spectral standard stars, meaning it is a bright giant star with a surface temperature around 3,600 kelvins. It puts out more energy than 10,000 suns, although more than 90% of it at longer than visual wavelengths.".
- Delta2_Lyrae label "Delta2 Lyrae".
- Delta2_Lyrae sameAs دلتا²_شلیاق.
- Delta2_Lyrae sameAs Delta2_Lyrae.
- Delta2_Lyrae sameAs m.03cgwwm.
- Delta2_Lyrae sameAs Q4147168.
- Delta2_Lyrae sameAs Q4147168.
- Delta2_Lyrae wasDerivedFrom Delta2_Lyrae?oldid=683134191.
- Delta2_Lyrae isPrimaryTopicOf Delta2_Lyrae.
- Delta2_Lyrae name "Delta2 Lyrae".