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The Aldebaran Mystery
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The Aldebaran Mystery
On 6/28/11 10:09 PM, StarDust wrote:
http://www.youtube.com/watch?v=IuHJz...eature=related Any input would be appreciated! "ALDEBARAN (Alpha Tauri). Aldebaran is by far the brightest, and therefore the Alpha, star of the constellation Taurus. The ancient name, from Arabic, means "the Follower," as the star seems to follow the Pleiades, or Seven Sisters star cluster, across the sky. Aldebaran, 67 light years away, is positioned in front of the sprawling Hyades star cluster (in mythology, half-sisters to the Pleiades) that make the head of Taurus the Bull, but is not a part of it, the cluster (at 150 light years) over twice as far away. Nevertheless, it makes a fine guide to it. In most renderings of the constellation, Aldebaran makes the celestial Bull's eye. As part of a constellation of the Zodiac, Aldebaran is close to the Sun's path, the Sun passing to the north of it about June 1, the star also regularly covered, or occulted, by the Moon. This class K (K5) giant star, of first magnitude (0.85) and 14th brightest in the sky, is a low-level irregular variable star that fluctuates erratically and to the eye unnoticeably by about two-tenths of a magnitude. Aldebaran's surface temperature of 4010 degrees Kelvin (compared to the Sun's 5780 degree temperature) gives it a distinct orangy color not all that dissimilar to that of Mars, which commonly passes it. Allowance for infrared radiation reveals the star to have a fairly high luminosity 425 times that of the Sun, which leads to a radius of 43 times solar. A projected equatorial rotation velocity of 5.2 kilometers per second gives the star a rotation period that could be as long as 400 days. The duration of disappearance in lunar occultations, as well as direct measure of angular diameter through interferometry, give an angular diameter of 0.01996 second of arc (the apparent size of a US nickel seen at a distance of about 50 kilometers), the star a leader in the number of such measures. That combined with distance gives a physical diameter of 44 times solar, in excellent agreement with the one found from luminosity and temperature. From the theory of stellar structure and evolution, Aldebaran carries a mass of around 1.7 times that of the Sun. Most class K giants are quietly fusing their internal helium cores into carbon and oxygen. Aldebaran, on the other hand, seems to be in a preliminary state in which a still-dead helium core is contracting and heating, causing the star as a whole to continue to expand and brighten. Consistent with its large size and luminosity, it's also known for a strong wind, through which it's beginning to lose mass, which surrounds it out to about 100 Astronomical Units. Within only another few million years, the star will top out at around 800 solar luminosities as it fires its helium, then shrinks and dims some to become one of the usual K-giant crowd. If Aldebaran were in our Solar System, it would extend halfway to the planet Mercury and would appear 20 degrees across in our sky, its great luminosity making life on Earth quite impossible. For a time, Aldebaran was thought to harbor its own planet (discovered through shifts in the star's velocity), *but it has never been confirmed*. Such would be counter to the usual finding that stars with planets tend toward high metal abundances, as Aldebaran's iron content (relative to hydrogen) is about half that of the Sun's. -- Ref: http://stars.astro.illinois.edu/sow/aldebaran.html |
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The Aldebaran Mystery
On Tue, 28 Jun 2011 20:09:53 -0700 (PDT), StarDust
wrote: http://www.youtube.com/watch?v=IuHJz...eature=related Any input would be appreciated! This just supports the fact that there are a lot of crazy people out there. This kind of nonsense is nothing more than snake-oil: a con man invents a wild story, and the credulous pay money for his books and other media. Occasionally we get lucky and they all kill themselves waiting for a comet to collect them, but mostly they just continue to foul the human gene pool. While this silly stuff is relatively harmless in its own right, the mind set that allows people to fall for it isn't- these are the same sort of people who are convinced that vaccines cause autism or that global warming is a hoax. In other words, people who think in a way that genuinely leads to damage in our society. |
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The Aldebaran Mystery
"Chris L Peterson" wrote in message ... On Tue, 28 Jun 2011 20:09:53 -0700 (PDT), StarDust wrote: http://www.youtube.com/watch?v=IuHJz...eature=related Any input would be appreciated! This just supports the fact that there are a lot of crazy people out there. This kind of nonsense is nothing more than snake-oil: a con man invents a wild story, and the credulous pay money for his books and other media. Occasionally we get lucky and they all kill themselves waiting for a comet to collect them, but mostly they just continue to foul the human gene pool. While this silly stuff is relatively harmless in its own right, the mind set that allows people to fall for it isn't- these are the same sort of people who are convinced that vaccines cause autism or that global warming is a hoax. In other words, people who think in a way that genuinely leads to damage in our society. How does people thinking Global Warming is a hoax lead to damage to our society? |
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The Aldebaran Mystery
On 6/28/11 10:48 PM, Peter Webb wrote:
How does people thinking Global Warming is a hoax lead to damage to our society? Political inaction in planning. |
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The Aldebaran Mystery
"Sam Wormley" wrote in message ... On 6/28/11 10:48 PM, Peter Webb wrote: How does people thinking Global Warming is a hoax lead to damage to our society? Political inaction in planning. Huh? Wouldn't this only be a problem if *politicians* think it is a hoax (rather than the general public)? |
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The Aldebaran Mystery
On Wed, 29 Jun 2011 13:48:24 +1000, "Peter Webb"
wrote: How does people thinking Global Warming is a hoax lead to damage to our society? Because there are enough credulous people, incapable of critical thinking, that conservative think tanks and politicians can lead them around by their noses, and further induce other politicians to avoid taking action. The result is that we are putting our very civilization at risk by not taking mitigating action. If we had a population more able to think rationally, this would not be happening. Indeed, most of our major problems, not just AGW, are the product of a population unable to think critically. |
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The Aldebaran Mystery
"Chris L Peterson" wrote in message ... On Wed, 29 Jun 2011 13:48:24 +1000, "Peter Webb" wrote: How does people thinking Global Warming is a hoax lead to damage to our society? Because there are enough credulous people, incapable of critical thinking, that conservative think tanks and politicians can lead them around by their noses, and further induce other politicians to avoid taking action. So it is a political thing. The result is that we are putting our very civilization at risk by not taking mitigating action. If we had a population more able to think rationally, this would not be happening. Indeed, most of our major problems, not just AGW, are the product of a population unable to think critically. So its similar to people who (say) disapprove of the war in Afghanistan and hence lead to damage to our society through the risk of terrorism? (or vice versa) Or similar to people who want to re-regulate banking and hence lead to damage to our society from having a less flexible banking system? (or vice versa) In short, there is no direct harm done (unlike the other example you gave of autism), and you could have just as easily used any other political decision that you happen to think is wrong as your example of a belief that causes society harm? How is this relevant to the Aldebaran belief? That doesn't involve any political changes causing harm, does it? Is this just an example of you picking an extremely poor analogy? |
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The Aldebaran Mystery
On Wed, 29 Jun 2011 13:48:24 +1000, "Peter Webb"
wrote, in part: How does people thinking Global Warming is a hoax lead to damage to our society? Well, they vote for politicians who don't do anything about it, so the weather does get warmer, and people starve in tropical countries. John Savard http://www.quadibloc.com/index.html |
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The Aldebaran Mystery
On Wed, 29 Jun 2011 16:36:15 +1000, "Peter Webb"
wrote, in part: How is this relevant to the Aldebaran belief? That doesn't involve any political changes causing harm, does it? Is this just an example of you picking an extremely poor analogy? What damages society is not so much that people do believe funny sturr about Aldebaran, but that they're stupid enough that they *can* believe funny stuff about Aldebaran. With people like that lying around, some person is going to take advantage of them, and so they can be manipulated to vote in ways harmful to our society and so on. An intelligent and rational electorate would lead to a better class of politician. John Savard http://www.quadibloc.com/index.html |
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