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 |
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 |
Kolory i filtry
Pasmo | Teleskop |
---|---|
Optyczny B | New Technology Telescope EMMI |
Optyczny V | New Technology Telescope EMMI |
Optyczny R | New Technology Telescope EMMI |