The Cepheid star RS Pup

Eso_eso0805a_500

eso_eso0805a February 11th, 2008

Credit: ESO

The nebula around the Cepheid star RS Pup undoubtedly holds a wealth of information about the mass-loss history of this star. It will thus be instrumental to understand the evolution of Cepheids. Less than five years away from the centenary of the discovery of the Period-Luminosity relation by Leavitt & Pickering, RS Pup could well become a ''Rosetta stone'' for this important class of stars. This colour composite image is based on observations made with the 3.6-m ESO New Technology Telescope (NTT) installed at the La Silla Observatory (Chile) and equipped with the ESO Multi-Mode Instrument (EMMI). The image is based on data obtained through B, V, and R-filters. In order to avoid a heavy saturation of the detector, RS Pup was positioned in the gap between the detectors.

Image Source: https://www.eso.org/public/images/eso0805a/

Curator: European Southern Observatory, Garching bei München, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Object Name
RS Puppis
Subject - Milky Way
Star » Type » Variable
Eso_eso0805a_128
 

Position Details

Position (ICRS)
RA = 8h 13m 4.2s
DEC = -34° 34’ 43.2”
Orientation
North is 120.2° CW
Field of View
5.7 x 5.7 arcminutes
Constellation
Puppis

Color Mapping

  Telescope Spectral Band Wavelength
Arrow_left_blue New Technology Telescope (EMMI) Optical (B) -
Arrow_left_green New Technology Telescope (EMMI) Optical (V) -
Arrow_left_red New Technology Telescope (EMMI) Optical (R) -
Eso_eso0805a_1280
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ID
eso0805a
Subject Category
B.3.2.1  
Subject Name
RS Puppis
Credits
ESO
Lightyears
Redshift
Reference Url
https://www.eso.org/public/images/eso0805a/
Type
Observation
Image Quality
Distance Notes
Facility
New Technology Telescope, New Technology Telescope, New Technology Telescope
Instrument
EMMI, EMMI, EMMI
Color Assignment
Blue, Green, Red
Band
Optical, Optical, Optical
Bandpass
B, V, R
Central Wavelength
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
123.267384, -34.578677
Reference Dimension
1379.0, 1376.0
Reference Pixel
682.472614528, 691.773013501
Scale
-6.909943e-05, 6.909943e-05
Rotation
-120.17021847332
Coordinate System Projection:
TAN
Quality
Full
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
eso0805a
Metadata Date
2015-02-06T03:42:03+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.