File:A waterfall of stars ESA22272381.tiff

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Captions

Captions

The galaxy UGCA 193, seen here by the NASA/ESA Hubble Space Telescope, is a galaxy in the constellation of Sextans (The Sextant).

Summary

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Description
English: The galaxy UGCA 193, seen here by the NASA/ESA Hubble Space Telescope, is a galaxy in the constellation of Sextans (The Sextant). Looking rather like a waterfall, UGCA 193 appears to host many young stars, especially in its lower portion, creating a striking blue haze and the sense that the stars are falling from “above”.
The blue colour of UGCA 193 indicates the stars that we see are hot — some with temperatures exceeding 6 times that of our Sun. We know that cooler stars appear to our eyes more red, and hotter stars appear more blue. As the mass and surface temperature of a star, and therefore its colour, are linked, heavier stars are able to “burn” at higher temperatures resulting in a blue glow from their surface.
Date 6 November 2020 (upload date)
Source A waterfall of stars
Author European Space Agency
Other versions
Activity
InfoField
Space Science
Mission
InfoField
Hubble Space Telescope

Licensing

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w:en:Creative Commons
attribution
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w:en:Creative Commons
attribution
This file is licensed under the Creative Commons Attribution 4.0 International license.
Attribution: ESA/Hubble & NASA, R. Tully; CC BY 4.0 - Acknowledgement: Gagandeep Anand
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current01:16, 21 August 2024Thumbnail for version as of 01:16, 21 August 20243,907 × 4,000 (15.94 MB)OptimusPrimeBot (talk | contribs)#Spacemedia - Upload of https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/11/a_waterfall_of_stars/22272371-1-eng-GB/A_waterfall_of_stars.tif via Commons:Spacemedia

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