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SCIENCE GUY EXPLAINS HOW IT'S POSSIBLE AN UNDISCOVERED BROWN DWARF STAR CAN EXIST In OUR SOLAR SYSTEM | |
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TheNothingTheNobody
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| Anonymous Coward User ID: 67697518  United Kingdom02/04/2015 06:52 AM Report Abusive Post Report Copyright Violation | Re: SCIENCE GUY EXPLAINS HOW IT'S POSSIBLE AN UNDISCOVERED BROWN DWARF STAR CAN EXIST In OUR SOLAR SYSTEM They're all hiding it? What can "they" hide, if amateur astronomers like Dr. Astro can image a brown dwarf star (Teegarden's star) 12 ly away? [link to www.godlikeproductions.com] Oh, and btw: Amateur astronomers can easily image Pluto because it reflects sun light. At what distance do you think amateur astronomers can image an object bigger than Jupiter that reflects sun light, too, when it enters our solar system. Who is the idiot now? . Dr Astro is a shill you stupid fuck. Anything useful to contribute, other than ad hominem and insults? ...said Dr Astro's butt-boy. |
| Anu, father of Enki
User ID: 57058081 United States02/04/2015 07:14 AM Report Abusive Post Report Copyright Violation | Re: SCIENCE GUY EXPLAINS HOW IT'S POSSIBLE AN UNDISCOVERED BROWN DWARF STAR CAN EXIST In OUR SOLAR SYSTEM To all those who doubt the existence of addition large planets within this solar system, please understand, you are at odds with the real experts. BTW Dr.Astro is also wrong if he dismisses what the experts have said. And such dismissal would require legitimate scientific explanation which is published in a peer reviewed respected journal. Whatever the name of these bodies is open to debate. However, the mounting evidence for their existence is not. Read it and weep. All doubters of planet (s) X, are now officially on the crackpot side of the discussion. [link to news.yahoo.com] I ordered the destruction of mankind, why are you still here? |
| Hydra
User ID: 67679312  Germany02/04/2015 09:02 AM Report Abusive Post Report Copyright Violation | Re: SCIENCE GUY EXPLAINS HOW IT'S POSSIBLE AN UNDISCOVERED BROWN DWARF STAR CAN EXIST In OUR SOLAR SYSTEM To all those who doubt the existence of addition large planets within this solar system, please understand, you are at odds with the real experts. BTW Dr.Astro is also wrong if he dismisses what the experts have said. And such dismissal would require legitimate scientific explanation which is published in a peer reviewed respected journal. Quoting: Anu, father of Enki Whatever the name of these bodies is open to debate. However, the mounting evidence for their existence is not. Read it and weep. All doubters of planet (s) X, are now officially on the crackpot side of the discussion. [link to news.yahoo.com] Read it and weep. "However, the pair [Trujillo and Sheppard] also stressed that other explanations are possible as well. For example, Sedna and 2012 VP113 may have been pushed out to their present positions by long-ago interactions with other stars in the sun's birth cluster. The objects may also have been nabbed from another solar system during a stellar close encounter. De la Fuente Marcos and his colleagues acknowledge the possibility of such alternative scenarios as well." [link to www.space.com] Btw.: You have to discern Planet X = Nibiru (3600 year orbit coming close to Earth) and the scientific meaning of Planet X = unknown planet (circular orbit never coming close to Earth). The Planet X = Nibiru deniers never stated, that a Planet X = unknown planet can not exist. It's more likely, you are on the crackpot side of the discussion by not knowing the difference between Planet X = Nibiru and Planet X = unknown planet. . :ase26122019: Annular Solar Eclipse - December 26, 2019 - Kannur, Kerala, India |
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Dr. Astro
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| another mouse cowherd
User ID: 39379674 United Kingdom02/04/2015 02:12 PM Report Abusive Post Report Copyright Violation | Re: SCIENCE GUY EXPLAINS HOW IT'S POSSIBLE AN UNDISCOVERED BROWN DWARF STAR CAN EXIST In OUR SOLAR SYSTEM What this means to any 'lurking' brown star in our system, it would leave a decided gravitational wake, which would perturb the orbits of planets around the whole system in a manner that would pretty much pinpoint the location of a massive body. Quoting: Aradzell Secondly, they are not black bodies, they do radiate and reflect electromagnet energies across a wide spectrum including light. Yes it is possible to have missed a large body with optics even today in the outer solar system, however the mapping of the whole of space with radio telescopes has been done and continually gets updated all the time. A near brown dwarf would have signaled its presence via radio waves. And yes there are amateur radio astronomers out there. Yes over long distances their radio power is too low to pick up more than the faintest of signals. However anything within the solar system is close enough to be detected. We can still pickup the signals of Voyager craft and their transmissions are infinitesimally small compared to what a modest small brown dwarf can produce. You're forgetting the 3600 orbit. It could be 1800 years away from us which is well beyond Pluto's orbit. Let's do some math about the 3,600 year orbit. There is a simple formula that gives us the semi major axis when we know the orbital periode: p^2 = a^3 with p = orbital periode in years and a = semi major axis in AU a = (p^2)^1/3 = (3600^2)^1/3 = 12,960,000^1/3 = 234.9 Thus the semi major axis of Nibiru is 234.9 AU. Since we know that it comes close to Earth at it's perihelion, we know the aphelion distance: 2 * 234.9 - 1 = 468,8 AU. Sedna, a dwarf planet the size of about 1,000 km, was discovered when it was at a distance of 100 AU. Now imagine a brown dwarf star 280 times the size of Sedna (280,000 km) at, in the worst case (furthest distance from the sun), only 4.5 times the distance away. Easy to spot only by reflected sun light - even for amateur astronomers. How many light years are 468,8 AU? - 0.0000158 light years. OK, the brown dwarf in the picture below, imaged by Dr. Astro in the infrared spectrum, is 12 light years away. :teegarden1: . You lost me at maths... |
| Hydra
User ID: 67679312 Germany02/04/2015 03:00 PM Report Abusive Post Report Copyright Violation | Re: SCIENCE GUY EXPLAINS HOW IT'S POSSIBLE AN UNDISCOVERED BROWN DWARF STAR CAN EXIST In OUR SOLAR SYSTEM What this means to any 'lurking' brown star in our system, it would leave a decided gravitational wake, which would perturb the orbits of planets around the whole system in a manner that would pretty much pinpoint the location of a massive body. Quoting: Aradzell Secondly, they are not black bodies, they do radiate and reflect electromagnet energies across a wide spectrum including light. Yes it is possible to have missed a large body with optics even today in the outer solar system, however the mapping of the whole of space with radio telescopes has been done and continually gets updated all the time. A near brown dwarf would have signaled its presence via radio waves. And yes there are amateur radio astronomers out there. Yes over long distances their radio power is too low to pick up more than the faintest of signals. However anything within the solar system is close enough to be detected. We can still pickup the signals of Voyager craft and their transmissions are infinitesimally small compared to what a modest small brown dwarf can produce. You're forgetting the 3600 orbit. It could be 1800 years away from us which is well beyond Pluto's orbit. Let's do some math about the 3,600 year orbit. There is a simple formula that gives us the semi major axis when we know the orbital periode: p^2 = a^3 with p = orbital periode in years and a = semi major axis in AU a = (p^2)^1/3 = (3600^2)^1/3 = 12,960,000^1/3 = 234.9 Thus the semi major axis of Nibiru is 234.9 AU. Since we know that it comes close to Earth at it's perihelion, we know the aphelion distance: 2 * 234.9 - 1 = 468,8 AU. Sedna, a dwarf planet the size of about 1,000 km, was discovered when it was at a distance of 100 AU. Now imagine a brown dwarf star 280 times the size of Sedna (280,000 km) at, in the worst case (furthest distance from the sun), only 4.5 times the distance away. Easy to spot only by reflected sun light - even for amateur astronomers. How many light years are 468,8 AU? - 0.0000158 light years. OK, the brown dwarf in the picture below, imaged by Dr. Astro in the infrared spectrum, is 12 light years away. :teegarden1: . You lost me at maths... I will highlight the important, non-math parts for you the next time.  . :ase26122019: Annular Solar Eclipse - December 26, 2019 - Kannur, Kerala, India |
| stupidboy
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| stupidboy
User ID: 67695627 United Kingdom02/04/2015 06:44 PM Report Abusive Post Report Copyright Violation | Re: SCIENCE GUY EXPLAINS HOW IT'S POSSIBLE AN UNDISCOVERED BROWN DWARF STAR CAN EXIST In OUR SOLAR SYSTEM Dear Hydra.I have tried to work this out for myself because this is interesting.I used figures based on earths recieved solar radiation given in wikipedia (dont laugh please) and according to my "calculations" the brown thingy would recieve around 13 times more solar radiation than sedna. The question now is - how much of this radiation would be reflected. I dont know but I would think sedna would reflect more than the brownie. However I may be wrong and I dont mind that (wouldn't be the millionth time). At the moment I am not convinced that it is much easier to detect than sedna. dingdong |
| Hydra
User ID: 67716759 Germany02/04/2015 06:47 PM Report Abusive Post Report Copyright Violation | Re: SCIENCE GUY EXPLAINS HOW IT'S POSSIBLE AN UNDISCOVERED BROWN DWARF STAR CAN EXIST In OUR SOLAR SYSTEM Dear Hydra. Please could you answer this question. Quoting: stupidboy How much more light would this brown dwarf star reflect than sedna? Thank you in advance. The brown dwarf star in the picture below (imaged by Dr. Astro) is 1700 times further away from the sun as the alleged Nibiru at its aphelion. Does this answer your question? :teegarden1: . :ase26122019: Annular Solar Eclipse - December 26, 2019 - Kannur, Kerala, India |
| Hydra
User ID: 67716759 Germany02/04/2015 06:55 PM Report Abusive Post Report Copyright Violation | Re: SCIENCE GUY EXPLAINS HOW IT'S POSSIBLE AN UNDISCOVERED BROWN DWARF STAR CAN EXIST In OUR SOLAR SYSTEM Dear Hydra.I have tried to work this out for myself because this is interesting.I used figures based on earths recieved solar radiation given in wikipedia (dont laugh please) and according to my "calculations" the brown thingy would recieve around 13 times more solar radiation than sedna. The question now is - how much of this radiation would be reflected. I dont know but I would think sedna would reflect more than the brownie. However I may be wrong and I dont mind that (wouldn't be the millionth time). Quoting: stupidboy At the moment I am not convinced that it is much easier to detect than sedna. Sedna is quite reflective with an albedo of 0.32. But the alleged brown dwarf/Nibiru is 280 times the size of Sedna at only 4.5 times the distance at aphelion. And it's not only visible light, that can be captured by astro-cameras, these devices can also capture light in the near infrared - see picture above. . :ase26122019: Annular Solar Eclipse - December 26, 2019 - Kannur, Kerala, India |
| Anonymous Coward User ID: 67695627 United Kingdom02/04/2015 07:23 PM Report Abusive Post Report Copyright Violation | Re: SCIENCE GUY EXPLAINS HOW IT'S POSSIBLE AN UNDISCOVERED BROWN DWARF STAR CAN EXIST In OUR SOLAR SYSTEM Thanks for your replies.I understand what you are saying about distance and size but the inverse square law applies to this situation. Also if the brown star was further away the there is a chance of more dust and other objects to obscure light.I am not convinced it would be easier to spot an unknown brownie at yon distance. I also dont know how much of the suns light would reflect. Things to ponder! Of to bed now. Once again thanks. |
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| Dr. Astro
Senior Forum Moderator User ID: 55240075 United States02/05/2015 08:32 AM Report Abusive Post Report Copyright Violation | Re: SCIENCE GUY EXPLAINS HOW IT'S POSSIBLE AN UNDISCOVERED BROWN DWARF STAR CAN EXIST In OUR SOLAR SYSTEM Yeah it's the temperature of the north pole and they found it with WISE from light years away. I hate to break it to you but any brown dwarf in our solar system would have been detected by WISE. Also, WISE J085510.83-071442.5 is technically a sub-brown dwarf. [link to en.wikipedia.org] Last Edited by Astromut on 02/05/2015 09:02 AM  |
| Anonymous Coward User ID: 55912305 United States02/05/2015 12:20 PM Report Abusive Post Report Copyright Violation | Re: SCIENCE GUY EXPLAINS HOW IT'S POSSIBLE AN UNDISCOVERED BROWN DWARF STAR CAN EXIST In OUR SOLAR SYSTEM Yeah it's the temperature of the north pole and they found it with WISE from light years away. I hate to break it to you but any brown dwarf in our solar system would have been detected by WISE. Also, WISE J085510.83-071442.5 is technically a sub-brown dwarf. [link to en.wikipedia.org] Sounds like you're backpedaling  |
| Dr. Astro
Senior Forum Moderator User ID: 4211721 United States02/05/2015 12:23 PM Report Abusive Post Report Copyright Violation | Re: SCIENCE GUY EXPLAINS HOW IT'S POSSIBLE AN UNDISCOVERED BROWN DWARF STAR CAN EXIST In OUR SOLAR SYSTEM Yeah it's the temperature of the north pole and they found it with WISE from light years away. I hate to break it to you but any brown dwarf in our solar system would have been detected by WISE. Also, WISE J085510.83-071442.5 is technically a sub-brown dwarf. [link to en.wikipedia.org] Sounds like you're backpedaling No it doesn't. Yes, WISE found a sub-brown dwarf as cold as the north pole from light years away. And it would have found anything within the 13-80 MJ mass range of a brown dwarf in our solar system. [link to www.nasa.gov] The remaining possibilities are considerably smaller than the 13 MJ cutoff for a brown dwarf. The chart showing the distance/size function of a cutoff only goes up to 10 MJ for goodness sake. Last Edited by Astromut on 02/05/2015 12:24 PM |
