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.

Të drejtat:


Rreth fotografisë

Data e Publikimit:Gus 18, 2010, 12:00 CEST
Publikime të ngjashme:eso1034
Përmasat:1261 x 1261 px

Rreth objektit

Emri:Westerlund 1
Tipi:Milky Way : Star : Evolutionary Stage : Neutron Star : Magnetar
Milky Way : Star : Grouping : Cluster
Distanca:15000 vite dritë
Kategori:Star Clusters

Formate Fotografish

JPEG i madh
424,6 KB

E zmadhueshme


233,1 KB
342,5 KB
477,4 KB
559,0 KB
734,0 KB


Position (RA):16 47 4.02
Position (Dec):-45° 51' 5.46"
Field of view:5.00 x 5.00 arcminutes
Orientimi:Veriu është 0.1° djathtas vertikales


Shih dhe