Faint White Dwarf Star in Globular Cluster NGC 6397

The image pinpoints one of the dim white dwarfs seen by Hubble (in the centre of the image, between the two brighter stars). The white dwarf has been cooling for billions of years. It is so cool that instead of looking red, it has undergone a chemical change in its atmosphere that makes it appear blue.

Credit:

NASA, ESA and H. Richer (University of British Columbia)

About the Image

NASA caption
Id:heic0608c
Type:Observation
Release date:17 August 2006, 20:00
Related releases:heic0608
Size:404 x 404 px

About the Object

Name:NGC 6397
Type:• Milky Way : Star : Grouping : Cluster : Globular
• X - Star Clusters Images/Videos
Distance:9000 light years

Colours & filters

BandWavelengthTelescope
Optical
V
606 nm Hubble Space Telescope
ACS
Optical
I
814 nm Hubble Space Telescope
ACS

Image Formats

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Screensize JPEG
273.3 KB

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