Clouds around RY Sagittarii

Eso_eso0734b_1024

eso_eso0734b August 3rd, 2007

Credit: ESO

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.

Provider: European Southern Observatory

Image Source: https://www.eso.org/public/images/eso0734b/

Curator: European Southern Observatory, Garching bei München, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

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Image Details Image Details

Image Type
Observation
Object Name
RY Sagittarii
Subject - Milky Way
Star > Type > Variable

Color Mapping Details Color Mapping

  Telescope Spectral Band Wavelength
Pseudocolor VLT (NACO) Infrared (Near-IR) 4.0 µm
Pseudocolor VLT (NACO) Infrared (Near-IR) 2.2 µm
Spectrum_base
Pseudocolor
Pseudocolor
Eso_eso0734b_1280
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ID
eso0734b
Subject Category
B.3.2.1  
Subject Name
RY Sagittarii
Credits
ESO
Release Date
2007-08-03T00:00:00
Lightyears
Redshift
Reference Url
https://www.eso.org/public/images/eso0734b/
Type
Observation
Image Quality
Distance Notes
Facility
Very Large Telescope, Very Large Telescope
Instrument
NACO, NACO
Color Assignment
Pseudocolor, Pseudocolor
Band
Infrared, Infrared
Bandpass
Near-IR, Near-IR
Central Wavelength
4000, 2200
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
Equinox
Reference Value
Reference Dimension
2103.0, 1010.0
Reference Pixel
Scale
Rotation
Coordinate System Projection:
Quality
FITS Header
Notes
Creator (Curator)
European Southern Observatory
URL
http://www.eso.org/
Name
Email
Telephone
Address
Karl-Schwarzschild-Strasse 2
City
Garching bei München
State/Province
Postal Code
D-85748
Country
Germany
Rights
Creative Commons Attribution 4.0 International License
Publisher
European Southern Observatory
Publisher ID
eso
Resource ID
eso0734b
Resource URL
https://www.eso.org/public/archives/images/original/eso0734b.tif
Related Resources
Metadata Date
2009-01-22T14:25:25+01:00
Metadata Version
1.1
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Detailed color mapping information coming soon...

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There is no distance meta data in this image.

 

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