пятница, 3 августа 2018 г.

Hubble Images Milky Way’s Big Sister


NASA – Hubble Space Telescope patch.


August 2, 2018



This image taken by the NASA/ESA Hubble Space Telescope’s Wide Field Camera 3 (WFC3) shows a beautiful spiral galaxy called NGC 6744. At first glance, it resembles our Milky Way albeit larger, measuring more than 200,000 light-years across compared to a 100,000-light-year diameter for our home galaxy.


NGC 6744 is similar to our home galaxy in more ways than one. Like the Milky Way, NGC 6744 has a prominent central region packed with old yellow stars. Moving away from the galactic core, one can see parts of the dusty spiral arms painted in shades of pink and blue; while the blue sites are full of young star clusters, the pink ones are regions of active star formation, indicating that the galaxy is still very lively.


In 2005, a supernova named 2005at (not visible in this image) was discovered within NGC 6744, adding to the argument of this galaxy’s liveliness. SN 2005at is a Type Ic supernova, formed when a massive star collapses on itself and loses its hydrogen envelope.



Hubble Space Telescope (HST)

For more information about Hubble, visit:


http://hubblesite.org/
http://www.nasa.gov/hubble
http://www.spacetelescope.org/


Image, Animation,  Credits: ESA/Hubble & NASA; acknowledgment: Judy Schmidt/Text Credits: ESA (European Space Agency)/NASA/Rob Garner.


Best regards, Orbiter.chArchive link


https://xissufotoday.space/2018/08/hubble-images-milky-ways-big-sister/

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