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What it is : The varying binary maven R Aquarii and the Cederblad 211 nebula
Where it is:710 light - year away , in the configuration Aquarius
This Hubble Space Telescope image features the binary star system R Aquarii.
When it was shared : Oct. 16 , 2024
Why it ’s so special : Not all star in the night sky are what they seem . Take R Aquarii , a point of light roughly between where Saturn and Jupiter appear in the sky properly now . It ’s two stars , not one . That ’s not strange . According toSpace.com , around 85 % of stars be in binary star systems . R Aquarii comprise of a monumental , cool red jumbo whiz and a dense , compact , hot white dwarf star . The two stars have a violent human relationship going back centuries .
Their interaction has caused the ruby-red giant star , which is about 400 time big thanthe sunlight , to dim and lighten up over 390 Earth days . During that time , it varies in brightness by a factor of 750 , peaking at 5,000 time the sunshine ’s luminosity and vary temperature .
An uncropped version of the image.
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Astronomers call it a varying champion , but R Aquarii is also a symbiotic star topology . The reason for the slow eye blink is an explosion on the airfoil of the white dwarf . Hydrogen builds up on the raging surface of the white gnome until it inevitably inflame after spontaneousnuclear coalition , causing an volatile outburst of shine gas . It does that when the two stars are close to each other , which happens roughly every 44 long time .
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That atomic number 1 - turkey - like case is call a nova . A similar case likely make the colored nebula , shout out Cederblad 211 , around R Aquarii , whose filaments blast from both ends of the star system of rules and reach over 248 billion miles ( 400 billion kilometers ) into infinite . During an outburst , plasma filaments shoot outwards at more than 1 million mph ( 1.6 million kilometer / h ) and become sculpted into spiral by strong magnetic fields .
In increase to this beautiful mental image of R Aquarii and Cederblad 211 from theHubble Space Telescope , atime - reverting videowas created using five images ingest from 2014 to 2023 . The video shows the scheme ’s smartness changing over meter , offer a bully object lesson of a proficiency know as time - domain astronomy .
For more sublime blank space trope , stop out ourSpace Photo of the Week archives .
