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Mark,
The star is estimated to brighten by 8 magnitudes from 10 to 2.5 +/-0.5. However it will just look like a normal star. T CrBor is 2500 light years away so it will be a very long time before any blow off material becomes visible in amateur astronomers telescopes. When it does, it will probably take the form of a planetary nebula..
Even if this happens to the closest stars, 4.2 light years away, they won’t show anything but brightening.
The best thing is to observe it through the year and follow the brightness as it flares.
Joe
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