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Around the massive star IRS2

Colour composite image of the central part of the stellar cluster RCW 38, around the young, massive star IRS2, taken with the NACO adaptive optics instrument attached to ESO's Very Large Telescope. Thanks to this image, astronomers were able to discover that IRS2 is in fact a twin system composed of two almost equally massive stars. The astronomers also found a handful of protostars – the faintly luminous precursors to fully realised stars – and dozens of other candidate stars that have eked out an existence here despite the powerful ultraviolet light radiated by IRS2.

The image is based on near-infrared data taken through three different filters (J, H and K). The field of view is about 1 arcminute across.

Credit:

ESO

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About the Image

Id:eso0929a
Type:Observation
Release date:19 August 2009
Related releases:eso0929
Size:947 x 934 px

About the Object

Name:RCW 38
Type:• Milky Way : Star : Grouping : Cluster
• X - Star Clusters
Distance:5500 light years
Constellation:Vela

Image Formats

Großes JPEG
191.4 KB
Screensize JPEG
151.6 KB

Wallpapers

1024x768
179.9 KB
1280x1024
272.2 KB
1600x1200
369.9 KB
1920x1200
416.1 KB
2048x1536
550.1 KB

Coordinates

Position (RA):8 59 5.77
Position (Dec):-47° 30' 37.56"
Field of view:0.85 x 0.84 arcminutes
Orientation:North is 0.0° right of vertical
View in WorldWide Telescope:
View in WorldWide Telescope

Colours & filters

BandTelescope
Infrared
J
Very Large Telescope
NACO
Infrared
H
Very Large Telescope
NACO
Infrared
K
Very Large Telescope
NACO

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