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If that was the hour glass in the link - as mentioned below, -We might ask why they mention it as the first item in a list of what happened with 1987!The hourglass nebula has nothing to do with SN1987A - the HN is 8,000 light years away, and images of it were produced in 1995, not 1987.
("February 24, 1987: Sk-69 202 transforms itself into SN1987A. About 1057 ultraviolet and x-ray photons stream out from the inferno. A small fraction of this energy hits the near ring system, causing it to glow.
- The gas in the hourglass is not terribly dense, nor is it thick, so it glows feebly. The rings, however, are denser, and the glow is more pronounced. 50,000 parsecs away, we see three rings glowing with almost no trace of the hourglass nebula itself.")"
" The origin and the nature of the beautiful circumstellar rings are still a mystery. They have been measured to expand rather slowly, "only" 70,000-100,000 miles per hour (this is considered slow because the supernova material in the center is expanding outward at speeds that are 100-2000 times higher!). Spectroscopic observations show that the rings are enriched in the element nitrogen. Both the slow speeds and the unusual composition show that the rings were expelled from the progenitor star when it was a red supergiant, more than 20,000 years before that star exploded as a supernova. However, one would have expected such a star to eject material in a more regular fashion, steadily expelling material in all directions, rather than puffing rings like a pipe smoker. Another puzzle is that the observations of the star just prior to the explosion show that it was a blue supergiant. This was a puzzle in 1987, because up to that time theorists had believed that only red supergiants could explode as a supernova. Apparently the star was, until relatively recently, indeed a red supergiant, but over the millennia before the explosion, it shrank in size and its surface heated up gradually."
http://heritage.stsci.edu/1999/04/sn1987anino.html
There are a lot of ifs!!The whole concocted explanation stinks to high heaven.
Once again, we should note that the fundamental assumption for the distance of the SN, even is based on assumed PO light speed.
"IUE measured the time interval between the supernova explosion and the time the inner ring brightened up to be 0.66 years. This means that the diameter of the ring is 1.32 light years. By comparing the angular and true sizes, we find the distance to SN 1987A (and thus to the Large Magellanic Cloud) to be 168,000 light years. This result is fundamental because it permits astronomers to calibrate the luminosity of the Cepheid variable stars in the LMC. Then, knowing how bright Cepheids are, we can measure the distances to many other galaxies, and thus measure the size, expansion rate, and age of the Universe."
(same link)
So, they base not only missing lines in the trig trianle that supposedly tells how far to this SN, but they use it all over God's universe!!! What a joke.
We might ask what may actually have happened in the few years before we got hubble to look at it, as well?
"[FONT=arial, helvetica] Ground-based images of SN1987A were only able to show a tiny unresolved blob of gas, so it was with anticipation that astronomers awaited the results from the Hubble Space Telescope, launched in April 1990. The first images of SN 1987A taken with the ESA Faint Object Camera on HST on August 23-24, 1990, resolved the inner circumstellar ring of the supernova"
http://www.aavso.org/vstar/vsots/0301.shtml
It looks like what we actually, truly, saw for YEARS, was not the core or the ring, but a blob of silly gas.
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We do? Gee, are you sure what we didn't actually see was a hazy blob????First we see the core light up. Then the ring lights up. The ring is centred on the star. This set of associations leads us to conclude that the core causes the ring to light up.
Well, to tell you that we need to limit the light action in the SN vicinity to PO speeds, you need to limit the universe to being PO. I am really starting to wonder about your high fallutin, poorly based claims here. The more we dig, the more silly and fantastic your myth becomes.You still haven't told us what speeds or distances we out to try to work out the correct distance to the supernova, and how long it took light to traverse the distance.
No idea who the "we" is there. Science has apparently assumed that the mysterious, all important, missing trig line is determined by the PO speed of light. That we know that we assume, despite what you think we know. Face it, you know precious little, and of that, most keeps changing, cause you didn't really even know that!We've done the work, and we haven't even assumed a constant speed of light. If you're not happy, get up and put some effort in.
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