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.

Źródło:

ESO

O zdjęciu

Identyfikator:eso0805a
Typ:Obserwacje
Data publikacji:11 lutego 2008
Powiązane komunikaty:eso0805
Rozmiar:1379 x 1376 px

O obiekcie

Nazwa:RS Puppis
Typ:Milky Way : Star : Type : Variable
Odległość:6500 lat świetlnych
Constellation:Puppis
Kategoria:Nebulae

Formaty zdjęć

Wielki JPEG
261,4 KB

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Współrzędne

Pozycja (RA):8 13 4.17
Pozycja (Dec):-34° 34' 43.24"
Pole widzenia:5.72 x 5.70 arcminutes
Orientacja:North is 120.2° prawo of vertical

 

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