A stunning long-exposure photograph captures the night sky with star trails rotating around Polaris, the North Star, the brightest star in the image. A Perseid meteor streaks across the frame, adding to the celestial spectacle. Dark rock formations silhouette against the vibrant star-filled sky.

Astronomy Picture from 06/10/1999

Polaris: The North Star

Source: https://apod.nasa.gov/apod/ap991006.html


#Polaris #NorthStar #NightSky #Astrophotography #Meteor #PerseidMeteorShower #Stargazing #CepheidVariable #BigDipper #LittleDipper #Astronomy #Space #Cosmos #Stars

Hubble Space Telescope image of RS Puppis, a Cepheid variable star 6,500 light-years away, surrounded by a dazzling reflection nebula. The star's pulsations create a light echo visible in the nebula, allowing astronomers to precisely measure its distance and luminosity. This contributes to a more accurate cosmic distance scale.

Astronomy Picture from 29/08/2018

Nearby Cepheid Variable RS Pup

Source: https://apod.nasa.gov/apod/ap180829.html


#RS_Puppis #CepheidVariable #HubbleSpaceTelescope #LightEcho #ReflectionNebula #StellarAstronomy #CosmicDistance #GalaxyDistances #Astrophotography #Space

Hubble Space Telescope image of RS Puppis, a Cepheid variable star 6,500 light-years away, surrounded by a dazzling reflection nebula. The star's pulsations create a light echo visible in the nebula, allowing precise distance measurement. This contributes significantly to understanding cosmic distances.

Astronomy Picture from 29/08/2018

Nearby Cepheid Variable RS Pup

Source: https://apod.nasa.gov/apod/ap180829.html


#RS Puppis #CepheidVariable #LightEcho #HubbleSpaceTelescope #ReflectionNebula #StellarAstronomy #CosmicDistance #GalaxyDistances #Space #Astronomy