Wide Field Imager image of Westerlund 1 (annotated)

This image of the young star cluster Westerlund 1 was taken with the Wide Field Imager on the MPG/ESO 2.2-metre telescope at ESO’s La Silla Observatory in Chile. This remarkable cluster contains hundreds of very massive stars, some shining with a brilliance of almost one million suns. Although most stars in the cluster are hot blue supergiants, they appear reddish in this image as they are seen through interstellar dust and gas. European astronomers have for the first time demonstrated that the magnetar — an unusual type of neutron star with an extremely strong magnetic field — that lies in the cluster was formed from a star with at least 40 times as much mass as the Sun. The result presents great challenges to current theories of how stars evolve, as a star as massive as this was expected to become a black hole, not a magnetar.

Kredit:

ESO

O snímku

Id:eso1034b
Typ:Pozorování
Datum zveřejnění:18. srpna 2010 12:00
Související články:eso1034
Velikost:1261 x 1261 px

O objektu

Jméno:Westerlund 1
Typ:Milky Way : Star : Evolutionary Stage : Neutron Star : Magnetar
Milky Way : Star : Grouping : Cluster
Vzdálenost:15000 světelné roky
Constellation:Ara
Kategorie:Star Clusters

Image Formats

největší JPEG
424,6 KB

Zvětšovatelný


Pozadí

1024x768
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1280x1024
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1600x1200
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1920x1200
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2048x1536
734,0 KB

Souřadnice

Position (RA):16 47 4.02
Position (Dec):-45° 51' 5.46"
Field of view:5.00 x 5.00 arcminutes
Orientace:Sever je 0.1° pravá od svislé osy

 

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