File:The Milky Way’s big sister ESA17613033.tiff

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Captions

Captions

This image taken by the NASA/ESA Hubble Space Telescope’s Wide Field Camera 3 (WFC3) shows a beautiful spiral galaxy called NGC 6744.

Summary

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Description
English: 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 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, was discovered within NGC 6744, adding to the argument of this galaxy’s liveliness (not visible in this image). SN 2005at is a type Ic supernova, formed when a massive star collapses in itself and loses its hydrogen envelope.
Date 23 July 2018 (upload date)
Source The Milky Way’s big sister
Author European Space Agency
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Activity
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Space Science
Mission
InfoField
Hubble Space Telescope

Licensing

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w:en:Creative Commons
attribution
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This file is licensed under the Creative Commons Attribution 4.0 International license.
Attribution: ESA/Hubble & NASA, CC BY 4.0
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