The star cluster Westerlund 1

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. 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.

Credit:

ESO

About the Image

Id:eso1034c
Type:Observation
Release date:18 August 2010, 12:00
Related releases:eso1415, eso1034
Size:1261 x 1261 px

About the Object

Name:Westerlund 1
Type:• Milky Way : Star : Grouping : Cluster
• X - Stars
Distance:15000 light years
Constellation:Ara

Image Formats

Suuri JPEG
556.3 KB
Screensize JPEG
282.0 KB

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Coordinates

Position (RA):16 47 4.02
Position (Dec):-45° 51' 5.46"
Field of view:5.00 x 5.00 arcminutes
Orientation:North is 0.1° right of vertical

Colours & filters

BandWavelengthTelescope
Optical
B
451 nmMPG/ESO 2.2-metre telescope
WFI
Optical
V
539 nmMPG/ESO 2.2-metre telescope
WFI
Optical
R
651 nmMPG/ESO 2.2-metre telescope
WFI

 

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