According to Wikipedia it's expected to happen some time between March and September of 2024, if it follows the pattern it's used before. (It's a recurring nova.)
The time factor is something that we tend to ignore when looking at stellar objects. We use the light year as a measure of distance but tend to ignore that it is also 3000 years past in time. Anything we see now happened long ago, and every object in the sky is at a different time in the past. Even our own sun is 8 minutes away.
What is confusing is that with these super nova occurrences, they say "we predict" as if it has not happened yet. I would think that with a powerful telescope they should be able to see into the future and know that it is coming and are predicting when we can see the flash.@@johnmintalar
I've had this exact question for days now. And conversely to your question, if this happens tomorrow for example, why don't we have to wait 3000 years to see the light?
Have you ever looked at the stars and planets through a earth based telescope? Planets appear round and you can even see the moons orbiting the planet although it is black and white and up side down. stars however look the same as they do without a telescope. This is because you can only see the ight generated by that sun according to its distance from earth. A telescope is actually looking into the future of that star so you can see the flash before it reaches earth. I have no idea how they calculate when the flash can be seen from earth. @@stevec2513
@@stevec2513 if we see it tomorrow it would have still happened 3000 years ago and it just took this long for it to travel to us so it just looks like the present
They have multiple observation records of this particular nova going off every 80 years, so I would assume this one will go off generally when they expected.
It's not like predicting an eclipse. This star periodically goes nova in about 80 year intervals. About 80 years ago one was observed and 80 years before that.
this is a regular event with this binary star pairing because one of them is a white dwarf drawing mass from its red giant partner. they're talking about it because it's about to happen again, just like it did in 1946.
This nova actually happened 3,000 years ago. The light from the explosion is arriving on the earth this year. For the few that are dim of understanding in the comments below, I am dismayed that I must explain the above statement. Light travels at one speed. It's called "The Speed of Light." It takes 3,000 years for the light of this nova to travel the distance of... here it is... 3,000 light years. Meaning, the event we are seeing unfold actually happened, occurred took place, 3,000 years ago. That's why it took this long, 3,000 years, for the light of the event to get here. Light can't go faster than the speed of light. If they still don't get it after that super-simplified explanation, then... can't help them. Researched it further on my own... there are two stars right next to each other, one is the size of earth but has the mass of our sun. It is absorbing hydrogen from the larger star beside it. It will be a NOVA, not a SUPERNOVA, because the small white dwarf will not entirely explode, only the hydrogen on the surface will ignite.
Uhmm you're actually quite wrong😅 This nova explosion happened at the year 1866 and was also seen at the year 1946.✨ Supernova & nova explosion are 2 different things. A nova does not destroy the star, and it may continue to undergo further explosions. A supernova destroys the star completely, leaving behind either a neutron star or a black hole 🕳️ Yes, this is called nova explosion not supernova because the star is not dead☄️
Be kind! We're all based on carbon after all... 💛 Right, wrong, just look at what the JWST is flipping around even for the earth's best astronomers! A novice enjoys both of your comments! 🙂
I live in the mountains in the Philippines. A couple of weeks ago, I could have seen this Supernova. I saw a bright white circle light that only appeared for a few seconds. Than about 15 seconds later, I saw it again. It was larger than any of the stars. The only way I can describe it is when you look at a gold fish mouth. It was as round as that. It was pure bright white light. I have never seen anything like it in my life.
Is there such a thing as a Astro-referee? 🤔 This thread could sure use one! Be excellent to each other! The J.W.S.T. is flipping everything we know astronomically as we type anyway! 🌠🌌🌠
Will probably be the brightest star in the night sky for a few days. This event is a recurring nova. A white dwarf is siphoning material from its red giant companion and it periodically explodes away material every 80 years. Look in the constellation Corona Borealis.
Well this nova was last seen in 1946. If it has a 80yr cycle then we should see it within the next 2 years. I'm assuming the best places to see it are in the southern hemisphere.
How long will this explosion last? Is that a dumb question? I guess I want to know if there will be time to go out and look if I hear on the news that it is happening, or if it's like a comet: you have days to try to catch a glimpse.
To clarify the confusion: That Supernova exploded 3000 years ago and we will be able to picture it at some point in the future because it took that much time to travel to the Earth and to us to be able to see it. The “time” in the Universe is not working the same way as it does on Earth that’s why we’ve got theory of general reality.
Isn't Betelgeuse expected to explode [supernova] and it will become as bright as the Moon. However astronomers cannot tell the timescale, could be this year or may not be for millenia.
it is nova, not supernova you can predict when nova happen, mostly when the white dwarf come close it going to eat upper red giant atmosphere and go nuclear fusion with a nice big boom thermonuclear explosion for supernova it is harder, you need to know the star intern structure, so we cant know when the core going to collapse and change into iron
It's next to Hercules at the bottom of his left foot. It is in the Northern Crown or Corona Borealis. The red giant might be Hercubolus or Nibiru or Betelgeuse. They use all different names to confuse people. It's huuuuuuuuuge and this is why they are worried.
Im very very very far from an expert, but since you have not received an answer, here i go: everything that you see with your eyes is thanks to the light that bounces out of the object and is processed by your eyes. Since the speed of light is very fast, you are able to see most things instantly. However with celestial objects that is not the case. Since they are so far away from us. Their "light" literally takes YEARS to arrive on earth therefore be seen by your eyes. So if for example i was able to travel to a planet that is exactly 1 light year away from earth, and I were to turn a huge flashlight there for you to see, it would mean that it would take exactly 1 light year for you to see the flashing light, but since then, time has continued so i would have literally lived a full light year since the day i sent the flash your way. Since this star is so distant, this pulses or flashing events that we on the earth will be able to see soon, happened 3000 light years ago. So this star could have already exploded in what is called a super nova, but we won't be able to see that until the light of that event (if it already happened) arrives on earth. I know its a bit difficult to grasp, and perhaps this is not a perfect analogy, but think of airplanes on an airport. Tons of planes from the same city flight to your city and for all of them, it takes exactly 3 hours to arrive. However, if one plane departed at 7 AM it arrives at your city 10am. Yet multiple other planes are on their way, but because they departed afterwards they won't arrive until the time they departed + traveling time occurs. Let say another departed at 12:00pm plus 3 hours, equals 3pm, and so on. That's KINDA what happens with light or the images your eyes see. Perhaps even easier example: it takes the light off the sun around 8 minutes to arrive on earth. So, if you where to look at the sun, you are seeing what happened 8 minutes ago. Again, im far far faaaar from an expert and there are tons of excellent astronomy channels out there ( i personally recommend Anton Petrov , Dr Becky. Dr. Machio Kiku etc etc etc) but i hope this helped. Best of luck.
😅 Great. When would be great or state the exact time is unknown but the range is believed to be between this and that. Also where and when to observe would be wonderful. Small note Coronae Borealis does not appear above the north east night horizon until after April 29thish from the 37th parallel per Google Sky Map, so hopefully it happens after this date.😮
Either the star isn't heavy/too small, or there IS a black hole that we don't know of which is very, very highly unlikely. But its most likely the first one since its just a nova, not a super nova, the star that's having a nova is too small to have a super nova, and too small to become a blackhole / neutron star, so it turns into a white dwarf which our sun will become as well in another 4 to 5 billion years, hope this helps you.
Saludos desde la frontera Mexicana Nuevo Laredo Tamaulipas Mexico, excelente trabajo videografico, muy buena nota reporte, gracias, bendiciones y un fuerte abrazo. 🙄🙂👍☮♾🛡🏁 mis plegarias y pensamientos por y con la infancia Afgana en cuevas y cavernas que también sueña con las maravillas del Universo.
So: somewhere in 2024 a small star will be visible again for some weeks at magnitude 2 in the Corona Borealis constellation. Exiting. Zzzz The physics behind it is more spectacular then the observation itself😊
Yes, that is one of the many flaws in this video. The portion of sky depicted with the Greek letters doesn't even include the star we're talking about, T, not tau. T is over near epsilon Corona borealis.
Yeah. But even though light is the fastest thing in the universe, it still will take a long time to reach us due it it’s distance. So what we see now is how the star looked 3000 years ago. (That doesn’t go for all stars because some stars are closer or father away)
Nova just means "new", and in the days of naked eye astronomy with no photographs, was applied to any star that brightened enough to suddenly become visible. Later studies found that some of these brightened repeatedly, and were visible telescopically in their normal dim state. Some, however were found to leave behind just a glowing cloud, that even later might be found to contain a strange repeating radio source. The former, more common brightening then fading back stars retained the term Nova, and are usually the white dwarf accreting binary type described in this video. The kind that blow the star into a glow cloud are a terminal event for a star. They might leave a collapsar remnant, but it won't be optically visible. These were given the new term Supernova. In standard comic book naming convention, we have recently added "Kilonova" and "Hypernova" to the pageant of misbehaving stars.
Thank you for the clarification, I was confused thinking a white dwarf going beyond critical mass resulted in a black hole, or a quasar, or whatever (my apologies I'm not educated, but fascinated 😂). Your explanation cleared that up beautifully only to open several more rabbit holes. I'm now thinking that separate incidents lead to different outcomes, but how?😂 Is big red's mass not reaching the core of the dwarf but instead acting like a very high mass coronal ejection every 80 years? Is the dwarf too far away to accumulate the mass quickly enough to blow itself apart and get all noisy with the radio waves?....the wonder of science is the greatest gift that comes with understanding. Again thank you for opening the door of one rabbit hole to five more 😊
@@dreadminion1284 All of Science is a "rabbit hole" warren like you describe. And it is glorious! But the deeper you go the heavier the math dirt gets! And don't get me started on the cost of the ever longer shovels needed....
@@dreadminion1284 Your guess about differing conditions making the star-fireworks outcome is right on the money. The primary condition turns out to be the mass of the star-ish thing about to go boom. The repeating binary Nova described here is the lowest mass condition. The white dwarf is the core of a smallish star like our Sun that had only enough mass to fuse hydrogen to helium, and then maybe some helium into carbon and oxygen. Then fusion stopped. The white dwarf left behind is a white hot glowing cinder of carbon and oxygen at stupid density, and now about the size of planet Earth. In the case in the video, the companion star is now entering the end of its fusion lifetime, and swelling up as a red giant. This allows a transfer of some of the red giants un-fused outer hydrogen layers to acrete onto the hot dense white dwarf as a thin outer layer. At some level of added fuel, that thin hydrogen rich layer detonates in a fusion explosion. In this case, the mass of the white dwarf is still small enough not to go super-nova, so it survives, to repeat the process every 80 years or so.
Please bear in mind that the recurring period of sexual receptivity in female mammals is called Estrus. Another way of putting it is that she is "in heat".
But, but, but, but, but I don't beeLEEEVE in science ! I'm a Catholic ! GAW Did IT ! They told me on Sunday ! (And then they smacked my hands with a ruler) Here we go... Watch that spot in the night sky, where the Corunaea will happen. Just like it did several times before. And don't tell me god told me to tell you, using your mighty keyboard and mouse.
No. What we will see is what happened 3000 years ago. But it will not take 3000 years for us to see it. Light is fast, but the star is very far away from us. This means that it takes 3000 years to reach our eyes
@@user-ms9go9ko5y Are you kidding? I wouldn't turn my head to watch those stupid c#nts on The View. Furthermore, while Broke Orange Hitler is, certifiably, a f#cking moron, Genocide Joe is falling all over his dick in order to sell *more* arms to racist child murderers. So...... your attempted insult went quite wide of the target. Perhaps, *someday*, America will field a candidate who isn't just another anti-human corporate tool.
