False-colour image of dust shell around R Cor Bor

Numéro d’image : 11885314
False-colour image of dust shell around R Cor Bor
False-colour infrared image showing an enormous shell of dust surrounding the bright supergiant star R Corona Borealis (R Cor Bor). The image was made by the Infrared Astronomical Satellite at a wavelength of 100 microns. The shell is thought to have been created by a mass-loss process which ceased thousands of years ago. It is now around 25 light years across. R Cor Bor is a variable star. It is usually visible to the naked eye (magnitude 6.0),but occasionally drops in brightness to as faint as 13th magnitude. The drops take place abruptly & unpredictably & last for 1-2 months
Licence : Droits gérés
Crédit: Science Photo Library / NOAO
Taille de l’image : 3648 px × 5265 px
Model Release : Non requis
Property Release : Non requis
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  • This image may not be used to state or imply NOAO endorsement of any company or product

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