Clouds around RY Sagittarii

Images of the star RY Sagittarii, member of the class of R Coronae Borealis stars, obtained with the NACO instrument on ESO's Very Large Telescope at two different epochs and at two different wavelengths. The left image was obtained on 24 May 2003 at a wavelength of 2.2 microns, and the right image on 17 September 2003 at 4 microns. Both images reveal strong deformations, the signatures of large clouds in the envelope surrounding the star. This was the first time these clouds were discovered around a R Coronae Borealis star, confirming the Dust Puff theory.

Credit:

ESO

About the Image

Id:eso0734b
Type:Observation
Release date:3 August 2007
Related releases:eso0734
Size:2103 x 1010 px

About the Object

Name:RY Sagittarii
Type:• Milky Way : Star : Type : Variable
• X - Stars
Distance:6000

Image Formats

Fullsize Original
504.8 KB
Large JPEG
182.5 KB
Screensize JPEG
76.6 KB

Colours & filters

BandWavelengthTelescope
Infrared
Near-IR
2.2 μmVery Large Telescope
NACO
Infrared
Near-IR
4.0 μmVery Large Telescope
NACO

 

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