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- Messier_29 abstract "Messier 29 (also known as M 29 or NGC 6913) is an open cluster in the Cygnus constellation. It was discovered by Charles Messier in 1764, and can be seen from Earth by using binoculars.M29 is situated in the highly crowded area of Milky Way near Gamma Cygni, at a distance of 7,200 (most sources including Mallas/Kreimer and Burnham, and agreeing with early estimates or R.J. Trumpler 1930) or 4,000 light years (the latter from Kenneth Glyn Jones and the Sky Catalogue 2000.0). The Night Sky Observer's Guide by Kepple and Sanner gives a deviating value of 6,000 light years – the uncertainty due to inaccurately known absorption of the cluster's light.According to the Sky Catalog 2000, M29 is included in the Cygnus OB1 association, and approaching us at 28 km/s. Its age is estimated at 10 million years, as its five hottest stars are all giants of spectral class B0. The Night Sky Observer's Guide gives the apparent brightness of the brightest star as 8.59 visual magnitudes. The absolute magnitude may be an impressive -8.2 mag, or a luminosity of 160,000 Suns. The linear diameter was estimated at only 11 light years. Its Trumpler class is III,3,p,n (as it is associated with nebulosity), although Götz gives, differently, II,3,m, and Kepple/Sanner gives I,2,m,n. The Sky Catalogue 2000.0 lists it with 50 member stars; earlier Becvar gave only the number of 20 members.This cluster can be seen in binoculars. In telescopes, lowest powers are best. The brightest stars of M29 form a "stubby dipper", as Mallas says it. The four brightest stars form a quadrilateral, and another three, a triangle north of them. It is often known as the "cooling tower" due to its resemblance to the hyperboloid-shaped structures. A few fainter stars are around them, but the cluster appears quite isolated, especially in smaller telescopes. In photographs, a large number of very faint Milky Way background stars shows up.M29 can be found quite easily as it is about 1.7 degrees South and little East of Gamma or 37 Cygni (Sadr). In the vicinity of M29, there is some diffuse nebulosity which can be detected in photographs.".
- Messier_29 thumbnail M29a.jpg?width=300.
- Messier_29 wikiPageExternalLink m029.html.
- Messier_29 wikiPageExternalLink Astro-DSO-NGC-6913.htm.
- Messier_29 wikiPageID "961172".
- Messier_29 wikiPageLength "3861".
- Messier_29 wikiPageOutDegree "22".
- Messier_29 wikiPageRevisionID "669604405".
- Messier_29 wikiPageWikiLink Binoculars.
- Messier_29 wikiPageWikiLink Brady_Haran.
- Messier_29 wikiPageWikiLink Category:Astronomical_objects_discovered_in_1764.
- Messier_29 wikiPageWikiLink Category:Cygnus_(constellation).
- Messier_29 wikiPageWikiLink Category:Messier_objects.
- Messier_29 wikiPageWikiLink Category:NGC_objects.
- Messier_29 wikiPageWikiLink Category:Open_clusters.
- Messier_29 wikiPageWikiLink Category:Orion–Cygnus_Arm.
- Messier_29 wikiPageWikiLink Charles_Messier.
- Messier_29 wikiPageWikiLink Cooling_tower.
- Messier_29 wikiPageWikiLink Cygnus_(constellation).
- Messier_29 wikiPageWikiLink Cygnus_constellation.
- Messier_29 wikiPageWikiLink Earth.
- Messier_29 wikiPageWikiLink Gamma_Cygni.
- Messier_29 wikiPageWikiLink Light-year.
- Messier_29 wikiPageWikiLink Light_year.
- Messier_29 wikiPageWikiLink Messier_object.
- Messier_29 wikiPageWikiLink New_General_Catalogue.
- Messier_29 wikiPageWikiLink Open_cluster.
- Messier_29 wikiPageWikiLink Stellar_classification.
- Messier_29 wikiPageWikiLink File:M29a.jpg.
- Messier_29 wikiPageWikiLink File:M29map.png.
- Messier_29 wikiPageWikiLinkText "M29".
- Messier_29 wikiPageWikiLinkText "Messier 29".
- Messier_29 wikiPageWikiLinkText "Open Cluster M29".
- Messier_29 age "10".
- Messier_29 appmagV "--02-01".
- Messier_29 caption "M 29 open cluster, by Ole Nielsen".
- Messier_29 class "d".
- Messier_29 constellation Cygnus_(constellation).
- Messier_29 constellation Cygnus_constellation.
- Messier_29 distLy "4.0".
- Messier_29 epoch "J2000.0".
- Messier_29 hasPhotoCollection Messier_29.
- Messier_29 name "Messier 29".
- Messier_29 names "NGC 6913".
- Messier_29 sizeV "7".
- Messier_29 wikiPageUsesTemplate Template:Cite_web.
- Messier_29 wikiPageUsesTemplate Template:Commons_category_inline.
- Messier_29 wikiPageUsesTemplate Template:Infobox_open_cluster.
- Messier_29 wikiPageUsesTemplate Template:Messier_objects.
- Messier_29 wikiPageUsesTemplate Template:Reflist.
- Messier_29 wikiPageUsesTemplate Template:Sky.
- Messier_29 wikiPageUsesTemplate Template:WikiSky.
- Messier_29 subject Category:Astronomical_objects_discovered_in_1764.
- Messier_29 subject Category:Cygnus_(constellation).
- Messier_29 subject Category:Messier_objects.
- Messier_29 subject Category:NGC_objects.
- Messier_29 subject Category:Open_clusters.
- Messier_29 subject Category:Orion–Cygnus_Arm.
- Messier_29 hypernym Cluster.
- Messier_29 type Article.
- Messier_29 type Language.
- Messier_29 type Article.
- Messier_29 type Catalogue.
- Messier_29 type Object.
- Messier_29 comment "Messier 29 (also known as M 29 or NGC 6913) is an open cluster in the Cygnus constellation. It was discovered by Charles Messier in 1764, and can be seen from Earth by using binoculars.M29 is situated in the highly crowded area of Milky Way near Gamma Cygni, at a distance of 7,200 (most sources including Mallas/Kreimer and Burnham, and agreeing with early estimates or R.J. Trumpler 1930) or 4,000 light years (the latter from Kenneth Glyn Jones and the Sky Catalogue 2000.0).".
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