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- Delta_Lyrae_cluster abstract "Delta Lyrae cluster is a sparse open cluster of stars located about 1,220 light years away in the northern constellation of Lyra. Centered on the member star Delta2 Lyrae for which it is named, it was first suspected in 1959 by American astronomer Charles B. Stephenson, then was later concluded not to exist by German astronomer Werner Bronkalla in 1963. However, subsequent photometric observations at the Palomar and Mount Wilson observatories led American astronomer Olin J. Eggen to demonstrate that there was an actual cluster, at least for the observed stars down to magnitude 5.5. Eggen's study found at least 33 members.The cluster has a visual magnitude of 4.5 and spans an angular diameter of 20 arc seconds. The tidal radius of the cluster is 38 ly (11.5 pc) and it has an estimated combined mass of 589 times the mass of the Sun. Based upon its estimated age and motion through space, it may be associated with the Gould Belt. It includes an Algol variable star, BD+36° 3317: this is a spectroscopic binary star system that undergoes regular eclipses because the orbital plane is nearly aligned with the line of sight to the Earth.".
- Delta_Lyrae_cluster wikiPageID "48520336".
- Delta_Lyrae_cluster wikiPageLength "5063".
- Delta_Lyrae_cluster wikiPageOutDegree "24".
- Delta_Lyrae_cluster wikiPageRevisionID "690207824".
- Delta_Lyrae_cluster wikiPageWikiLink Algol_variable.
- Delta_Lyrae_cluster wikiPageWikiLink Angular_diameter.
- Delta_Lyrae_cluster wikiPageWikiLink Apparent_magnitude.
- Delta_Lyrae_cluster wikiPageWikiLink Binary_star.
- Delta_Lyrae_cluster wikiPageWikiLink Category:Lyra_(constellation).
- Delta_Lyrae_cluster wikiPageWikiLink Category:Open_clusters.
- Delta_Lyrae_cluster wikiPageWikiLink Charles_Bruce_Stephenson.
- Delta_Lyrae_cluster wikiPageWikiLink Constellation.
- Delta_Lyrae_cluster wikiPageWikiLink Delta2_Lyrae.
- Delta_Lyrae_cluster wikiPageWikiLink Epoch_(astronomy).
- Delta_Lyrae_cluster wikiPageWikiLink Globular_cluster.
- Delta_Lyrae_cluster wikiPageWikiLink Gould_Belt.
- Delta_Lyrae_cluster wikiPageWikiLink Light-year.
- Delta_Lyrae_cluster wikiPageWikiLink Line-of-sight_propagation.
- Delta_Lyrae_cluster wikiPageWikiLink Lyra.
- Delta_Lyrae_cluster wikiPageWikiLink Minute_and_second_of_arc.
- Delta_Lyrae_cluster wikiPageWikiLink Mount_Wilson_Observatory.
- Delta_Lyrae_cluster wikiPageWikiLink Olin_J._Eggen.
- Delta_Lyrae_cluster wikiPageWikiLink Open_cluster.
- Delta_Lyrae_cluster wikiPageWikiLink Orbital_plane_(astronomy).
- Delta_Lyrae_cluster wikiPageWikiLink Palomar_Observatory.
- Delta_Lyrae_cluster wikiPageWikiLink Photometry_(astronomy).
- Delta_Lyrae_cluster wikiPageWikiLink Solar_mass.
- Delta_Lyrae_cluster wikiPageWikiLinkText "Delta Lyrae cluster".
- Delta_Lyrae_cluster age "49".
- Delta_Lyrae_cluster appmagV "4.5".
- Delta_Lyrae_cluster constellation Lyra.
- Delta_Lyrae_cluster epoch Epoch_(astronomy).
- Delta_Lyrae_cluster massMsol "589".
- Delta_Lyrae_cluster name "Delta Lyrae cluster".
- Delta_Lyrae_cluster names "Stephenson 1".
- Delta_Lyrae_cluster sizeV "20".
- Delta_Lyrae_cluster wikiPageUsesTemplate Template:Convert.
- Delta_Lyrae_cluster wikiPageUsesTemplate Template:DEC.
- Delta_Lyrae_cluster wikiPageUsesTemplate Template:Infobox_cluster.
- Delta_Lyrae_cluster wikiPageUsesTemplate Template:RA.
- Delta_Lyrae_cluster wikiPageUsesTemplate Template:Reflist.
- Delta_Lyrae_cluster subject Category:Lyra_(constellation).
- Delta_Lyrae_cluster subject Category:Open_clusters.
- Delta_Lyrae_cluster hypernym Cluster.
- Delta_Lyrae_cluster type Language.
- Delta_Lyrae_cluster comment "Delta Lyrae cluster is a sparse open cluster of stars located about 1,220 light years away in the northern constellation of Lyra. Centered on the member star Delta2 Lyrae for which it is named, it was first suspected in 1959 by American astronomer Charles B. Stephenson, then was later concluded not to exist by German astronomer Werner Bronkalla in 1963. However, subsequent photometric observations at the Palomar and Mount Wilson observatories led American astronomer Olin J.".
- Delta_Lyrae_cluster label "Delta Lyrae cluster".
- Delta_Lyrae_cluster sameAs Q22086870.
- Delta_Lyrae_cluster sameAs Q22086870.
- Delta_Lyrae_cluster wasDerivedFrom Delta_Lyrae_cluster?oldid=690207824.
- Delta_Lyrae_cluster isPrimaryTopicOf Delta_Lyrae_cluster.