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.

Credit:

ESO

Over de afbeelding

Id:eso0805a
Type:Observatie
Publicatiedatum:11 februari 2008
Gerelateerde berichten:eso0805
Grootte:1379 x 1376 px

Over het object

Naam:RS Puppis
Type:Milky Way : Star : Type : Variable
Afstand:6500 lichtjaren
Constellation:Puppis
Categorie:Nebulae

Afbeeldingstypen

Grote JPEG
261,4 KB

Achtergrond

1024x768
168,9 KB
1280x1024
234,9 KB
1600x1200
284,7 KB
1920x1200
306,8 KB
2048x1536
389,4 KB

Coordinates

Position (RA):8 13 4.17
Position (Dec):-34° 34' 43.24"
Field of view:5.72 x 5.70 arcminutes
Orientation:North is 120.2° right of vertical

 

Bekijk ook