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Post by Dragon Man on Feb 9, 2020 16:20:26 GMT
A DAY OF RECKONING FOR BETELGEUSE? Astronomers have been keeping a wary eye on Betelgeuse, the bright red star in Orion's shoulder. All of a sudden, Betelgeuse isn't bright anymore--a sign that the star could be on the verge of supernova. A new analysis by astronomers at Villanova University shows that Feb. 21st could be a key date for the unstable supergiant. Visit today's edition of Spaceweather.com to find out what might happen later this month. from spaceweather.comAlso worth a read: www.astronomerstelegram.org/?read=13439
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Post by davy on Feb 9, 2020 21:50:56 GMT
Betelgeuse is 650 light years from Earth so it takes light 650 years to reach us .If the explosion happened in the Year 3000 AD, then we will see the light arrive in the year 3650 AD, 650 years AFTER the event occurred. But given the way the cosmos is,, its a hit and miss on the event, Is it a cycle,, we know events on earth goes in cycles. The seasons, the lunar cycle,, storms,, What's to say that cycles don't happen in deep space,, we know our own sun has periods of sun spots and solar flares,, Big red could be similar,, I think once we confirmed it had dimmed we would see it go supernova pretty quickly as it uses up its fuel..
And how wrong could I be lol,, probably happen tonight,, me and my big mouth 🤣😂🤣
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Post by Dragon Man on Feb 10, 2020 6:30:39 GMT
True Davy. I have read updates from different astronomers saying as early as this month, some say in the next few months or years and one said it probably won't happen for over one thousand years, as he said in the interview: "In astronomical terms, a thousand years is very close in time". So it's really anyone's guess
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Post by Deleted on Feb 10, 2020 8:53:14 GMT
A supernova 650 lya would be fantastic. Apparently SN 1985A could be seen with the naked eye. That was 160,000 lya in the Large Magellanic Cloud. Something 200 times closer would create quite a spectacle. Eta Carina has been teasing us with varying luminosity for nearly 200 years. It is 7500 lya, but still a spectacle. We have been waiting a long time cheers Paul
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Post by Dragon Man on Feb 10, 2020 10:14:29 GMT
. . . Apparently SN 1985A could be seen with the naked eye. That was 160,000 lya in the Large Magellanic Cloud. . . . cheers Paul Yes it was easily seen by naked eye Paul. But it was 198 7A, now commonly known as 1987a Supernova Remnant. I did a study of it at the time and wrote a paper on it back when I was a member of the Ballarat Astro Society. Naked eye it was about the same luminosity as Menkar but because there was no other bright object nearby, it gave the false appearance of being about as bright as Achenar. It was quite a beautiful sight for about 3 weeks. Totally faded away though by about 3 months later.
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Post by Deleted on Feb 10, 2020 11:32:36 GMT
Thanks Ken. I should have checked my facts . I had never even looked through a telescope in 1987.It would have been great to see and witness. I just hope we get to see one in the Milky Way before our time is done. cheers Paul
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Post by Dragon Man on Feb 10, 2020 12:00:47 GMT
That's the amazing thing Paul, SN1987A didn't need a Telescope. It was BRIGHT! Actually, a telescope wouldn't have helped at all. Imagine seeing the currently fading Betelguese suddenly be as bright at Rigel! Same feeling when looking at 1987A when it happened. It definitely was a 'WOW!!!'moment
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