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.

Oikeudet:

ESO

Kuvasta

Tunnistus:eso0805a
Tyyppi:Havainto
Julkaisupäivä:11. helmikuuta 2008
Vastaavat julkaisut:eso0805
Koko:1379 x 1376 px

Kohteesta

Nimi:RS Puppis
Tyyppi:Milky Way : Star : Type : Variable
Etäisyys:6500 valovuotta
Constellation:Puppis
Kategoria:Nebulae

Kuvaformaatit

Suuri JPEG
261,4 KB
Kokoruudun JPEG
174,3 KB

Taustakuvat

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

Koordinaatit

Position (RA):8 13 4.17
Position (Dec):-34° 34' 43.24"
Field of view:5.72 x 5.70 arcminutes
Suuntaus:Pohjoinen on 120.2° oikea pystysuuntaan nähden

Värit ja suotimet

KaistaTeleskooppi
Optinen
B
New Technology Telescope
EMMI
Optinen
V
New Technology Telescope
EMMI
Optinen
R
New Technology Telescope
EMMI

 

Katso myös