Posted on 01/07/2020 8:41:17 AM PST by BenLurkin
Currently, the faint star V Sagittae, V Sge, in the constellation Sagitta, is barely visible, even in mid-sized telescopes. However, around the year 2083, this innocent star will explode, becoming as bright as Sirius, the brightest star visible in the night sky.
During this time of eruption, V Sge will be the most luminous star in the Milky Way galaxy. This prediction is being presented for the first time at the 235th American Astronomical Society meeting in Honolulu, HI, by astronomers Bradley E. Schaefer, Juhan Frank, and Manos Chatzopoulos, with the Louisiana State University Department of Physics & Astronomy.
V Sge is a star system in a large and diverse class called Cataclysmic Variables, CVs, consisting of an ordinary star in a binary orbit around a white dwarf star, where the normal star's mass is slowly falling onto the white dwarf. CVs include multiple types of binary stars, often with spectacular behavior.
V Sge is the most extreme of all the CVs, approximately 100 times more luminous than all other known CVs, and is powering a massive stellar wind, equal to the winds of the most massive stars prior to their deaths. These two extreme properties are caused by the fact that the normal star is 3.9 times more massive than the white dwarf.
V Sge has been systematically brightening by a factor of 10X, 2.5 magnitudes, from the early 1890s up until the last decade. This unprecedented behavior was confirmed with archival data collected from the database of the American Association of Variable Star Observers, AAVSO, showing V Sge brightening by nearly a factor of 10X, 2.4 magnitudes, from 1907 until the last few years.
This explosive event will have peak brightness over a month, with two stars merging into one star.
(Excerpt) Read more at phys.org ...
I read the whole article at the link. No mention of how far away this star(s) is in light years.
Something tells me this event (in true time) has probably already happened due to the distance away we are.
2083?..................well, we’ll all be dead from Climate Change by then so why worry?...............
It’s 6-7 x larger than our sun. It’s also ~5,100 light years away, so it’s presumably already gone supernova.
I won't be here, but I feel like placing a bet that this won't happen in 2083.
https://en.wikipedia.org/wiki/List_of_stars_in_Sagitta
Confirming it already is in the history books. Great reporting from MSM, always easier to report on the past isn’t it.
About 7760 light years distant.
I saw “Binary star”, and thought it was referring to an actor who ‘identified’ with both sexes. Never mind.
If you haven’t noticed almost everything coming out of NASA and space sources, have already happened. Things so far away that they aren’t really news at all.
Saw today the weather guy playing space reporter say ... I wonder, maybe those folk out there are getting our radio waves the same way. Is this all part of a dialog ??!!
Idiot, if they are over 200 light years away, nothing has gotten to them yet!!! Brains are not on the tube anymore.
Is this photo here cause this thread touches on alien life from far away?
I’ll put that on my calendar.
V Sagittae? Would that be “Gamma Sagittae”? As in the 3rd most luminous star in that constellation?
Speak of The Devil!
If the light from the supernova explosion won't reach earth until about 2083, that gives NASA lots of time to figure out how to credit medieval Muslim astronomers with our knowledge of V Sagittae.
But, if it's millions of light years away, when it explodes the light won't reach us for millions of years.
V Sagittae is a different star.
If it were millions of light-years away, it would be in another galaxy. Presumably it has already exploded (assuming the astronomers are right) but the light from the explosion hasn’t reached us yet.
This star is 466.61 light years from here. In other words, it already blowed up about 350 years ago and the light is still on its way here.
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