Phase-folded I-band (upper panel) and V-band (middle panel) OGLE light curves of OGLE-GD-CEP-1884 and radial-velocity curve of this star from the Gaia Focused Product Release (Gaia Collaboration et al ...

Add Yahoo as a preferred source to see more of our stories on Google. An image of the Cepheid variable star RS Puppis. An image of the Cepheid variable star RS Puppis. The most accurate observation to ...

A new study under the SPECTRUM project updated radiative opacity tables in hydrodynamical pulsation models for Classical Cepheid and RR Lyrae stars. The results show only minor shifts in instability ...

Add Yahoo as a preferred source to see more of our stories on Google. A visual showing various galaxies in pink and blue getting smaller as they go deeper into the image. There's a ladder tracing them ...

This Hubble Space Telescope image shows RS Puppis, one of the most luminous Cepheid variable stars. It rhythmically brightens and dims over a six-week cycle. (ASA, ESA, Hubble Heritage Team ...

ABOVE: This composite photo by NASA, ESA, the Hubble Heritage Team and R. Gendler shows the Andromeda Galaxy. The Cepheid variable star V1 is indicated with an arrow, and four inset images show the ...

At the center of these side-by-side images is a special class of star used as a milepost marker for measuring the universe’s rate of expansion – a Cepheid variable star. The two images are very ...

Astronomers from the University of Warsaw, Poland and elsewhere have detected a new classical Cepheid variable star. The newfound star, which received designation OGLE-GD-CEP-1884, has the longest ...