2024-03-18 07:04:00
NASA has revealed that this year there will be a rare phenomenon known as a “nova,” or the explosion of a star so far away that it can be seen with the naked eye.
NASA has revealed that in 2024 there will be a rare phenomenon that will take nearly 80 years to occur once. And what’s interesting is Can be observed from our sky with the naked eye.
Astronomers believe that between February and September this year there will be an eruption or Nova of the star system T Coronae Borealis (T Coronae Borealis) or T CrB, which is far from Earth. 3,000 light years in the constellation Corona Borealis, near the constellations Bootes and Hercules.
The last time T CrB erupted was in 1946, making this a once-in-a-lifetime opportunity to witness the phenomenon.
in astronomy There is a measure of the brightness of objects in space called “magnitude”. The higher an object has this value, the darker it is and the lower the value. especially negative values It will be even brighter.
The T CrB star system normally has a brightness of +10, which is too dim to be seen with the naked eye. But when a nova occurs It will brighten to +2, or similar in brightness to the North Star (Polaris), and will be visible to the naked eye for several days, possibly more than a week, before it dims once more, requiring another 80 years to occur. One more time
In our Milky Way galaxy There are only 5 places where novae can occur. T CrB is one of them.
Nova’s cause This is because T CrB is a binary star system in which a white dwarf and a red giant orbit each other close enough to cause the red giant to become unstable due to increased temperature and pressure.
The red giant’s outer layer then begins to peel off. And attracted to the white dwarf, it collects that matter on its surface. When you accumulate enough It will cause a thermonuclear reaction. This creates the novae that we see from Earth.
NASA officials said in a statement that “This might be a once-in-a-lifetime viewing opportunity. Because nova explosions only happen every 80 years.”
Compiled from NASA
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