At 550 LY distance it would not just disappear though; it would light up like a gigantic flashbulb, probably casting shadows on the ground and certainly being the brightest thing in the night sky (and likely visible in daylight as well!) Antares is a red supergiant star located about 550 light-years away with a mass of about 12 times that of our Sun. A near-Earth supernova is an explosion resulting from the death of a star that occurs close enough to the Earth (roughly less than 10 to 300 parsecs (30 to 1000 light-years) away) to have noticeable effects on Earth's biosphere.. Sure sounds like fun to me!Then the late comers won't get to see it as all the photons will have been sucked out of space by everyone else who got an early start On a more serious note, what type of filter would be best to view a When i was young, the 3 stars in Scorpius' claws were all the same brightness.Then the middle one, Delta, got a lot brighter between 2000 and 2004. Solar System Imaging & Processing I though it might brighten up everyones day. Please re-enable javascript to access full functionality.Everyone reading this, go outside and look at where the star Antares was. It rivaled Antares for a while, then dimmed.But, many years later, it has not returned to its original brightness. CCD/CMOS Astro Camera Imaging & Processing It would not only be visible, but the brightest supernova in human history.

Chances are one or both of them may have already reached the threshold and went to Supernova, we just do not see the news yet. But astronomers can’t say if … If a SN is as close as Sirius, we'd be cooked!I'm not seeing any AAVSO alerts, so I guess we won't be seeing any daytime SN todayIt was just a joke. An estimated 20 supernova explosions have happened within 300 pc of the Earth over the last 11 million years. Antares is a Class M red supergiant that is indeed headed toward an eventual supernova detonation. At 550 LY distance it would not just disappear though; it would light up like a gigantic flashbulb, probably casting shadows on the ground and certainly being the brightest thing in the night sky (and likely visible in daylight as well!) This was a naked-eye supernova, in fact, at its peak, it was brighter than any other star in … it is still brighter than normal.This is a B0 star veering off the main sequence as it ages, and we either caught it as it was throwing off a lot of its atmosphere(ooh! Beginning and Intermediate Imaging Several functions may not work. It is expected to explode as a supernova in the next million years. My greatest hope is we witness something like the Crab nebula in 1054AD.Hope it’s not too bright – I plan to view the moon tonight and don’t have GOTO  Seriously though,  we should not forget its 7 to 8 solar-mass (Kaler) companion – the aftermath effects would be fascinating!Hi milleniumfalcon and welcome to Cloudy Nights. Massive stars such as Antares burn their fuel extremely quickly, as a result they only exist for a few million years. By the time it hit the news probably a third of CN members would be calling in sick (or going home sick) to work. Antares is about 600 light years away and also dated by that amount of time. Historically, each near-Earth supernova explosion has been associated with a global warming of around 3–4 °C (5–7 °F). The average peak absolute magnitude of a core-collapse supernova (which is what Antares will eventually be) is -16 or -17. Antares is around 10,000 times brighter than the sun. a budding planetary nebula), or we caught its "helium flash", or.......Now it's classified as a Be star and is a "variable" followed by the AAVSO:What remains is to watch it over the years to see if it returns to its original brightness, or to see if it flares again! I think you need to move somewhere with less light pollution. It’s a red supergiant star near the end of its 10 million-year life cycle. I believe it has gone supernova.That would be cool! Un observatorio en Chile logró capturar los detalles de la superficie y atmósfera de Antares, una supergigante roja a 550 años luz de la Tierra en la constelación de Escorpio. Type II supernova explosions are expected to occur in active star-forming regions, with 12 such Speculation as to the effects of a nearby supernova on Earth often focuses on large stars as It is estimated that a Type II supernova closer than eight Past supernovae might be detectable on Earth in the form of metal isotope signatures in Since a radius of 100 light years contains approximately 27.8 times as much volume as one of 33 light years, a supernova should occur within a radius of 100 light years from Earth approximately once every 8.6 million years. At only around 12 million years old Antares is already nearing the end of its lifespan and is expected to explode as a supernova … It would cast shadows at night and be seen in broad daylight for years, and its aftermath would glow brightly for decades. A supernova would occur within a radius of 200 light years approximately once every million years, within 500 light years every 69,000 years, and within 1,000 light years roughly every 8,625 years. Supernova explosions, and the winds of hot stars have churned up the gas and dust. Solar System Imaging & Processing Antares /ænˈtɛəriːz/,[15][16] designated α Scorpii (Latinised to Alpha Scorpii, abbreviated Alpha Sco, α … Let’s just use -16.5 to find a happy medium for this calculation. Just kidding of course, some gentle ribbing there.That would be insane if it did go Supernova. Solar System Imaging & Processing There is no doubt that Betelgeuse will explode as a supernova someday.

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Approaching Antares, you would see the blue Antares B, and the red star's photosphere dominated by huge convective cells. If Betelguese or Antares did go SN some night there would likely be a post from someone in all caps here within minutes. You currently have javascript disabled. Antares looked normal to me just a few hours before your post.I guess we are lucky that Antares is so far away (~550ly). Antares B is 10 times more massive than our Sun, and about 150 times brighter. CCD/CMOS Astro Camera Imaging & Processing


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