The Cepheid star RS Pup

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.

Kilde:

ESO

Om billedet

Id:eso0805a
Type:Observation
Udgivelsesdato:11. februar 2008
Relaterede pressemeddelelser:eso0805
Størrelse:1379 x 1376 px

Om objektet

Navn:RS Puppis
Type:Milky Way : Star : Type : Variable
Afstand:6500 lysår
Constellation:Puppis
Kategori:Nebulae

Billedformater

Stor JPEG
261,4 KB
Skrærm JPEG
174,3 KB

Baggrundsbilleder

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1280x1024
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Koordinater

Position (RA):8 13 4.17
Position (Dec):-34° 34' 43.24"
Field of view:5.72 x 5.70 arcminutes
Orientering:Nord er 120.2° droite fra lodret

 

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