Cepheids in NGC 300
May 19, 2005
This photo shows some of the Cepheid type stars in the spiral galaxy NGC 300 (at the centre of the markers), as they were identified by Wolfgang Gieren and collaborators during the research programme for which the WFI images of NGC 300 were first obtained. In this area of NGC 300, there is also a huge cloud of ionized hydrogen (a "HII shell"). It measures about 2000 light-years in diameter, thus dwarfing even the enormous Tarantula Nebula in the LMC, also photographed with the WFI.
Topics: Dorado constellation, Unbarred spiral galaxies, Spiral galaxies, Wolfgang Gieren, Technology Internet, NGC 300, Sculptor constellation, NGC, Pinwheel Galaxy, Nebula