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.

Crédito:

ESO

Sobre a imagem

Id:eso0805a
Tipo:Observação
Data de divulgação:11 de Fevereiro de 2008
Notícias relacionadas:eso0805
Tamanho:1379 x 1376 px

Sobre o objeto

Nome:RS Puppis
Tipo:Milky Way : Star : Type : Variable
Distância:6500 anos-luz
Constellation:Puppis
Categoria:Nebulae

Formatos de imagens

JPEG grande
261,4 KB

Papéis de parede

1024x768
168,9 KB
1280x1024
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1600x1200
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1920x1200
306,8 KB
2048x1536
389,4 KB

Coordenadas

Position (RA):8 13 4.17
Position (Dec):-34° 34' 43.24"
Field of view:5.72 x 5.70 arcminutes
Orientação:O norte está a 120.2° à direita da vertical

 

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