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"It's almost twice the size of Jupiter"
"Although brown dwarfs haven't enough mass to ignite normal hydrogen fusion in their cores, they glow dully and give off a substantial amount of infrared radiation as a result of slow gravitational contraction and small-scale deuterium fusion."
Originally posted by GunzCoty
But the smallest brown dwarf stars are about 13 MJ (Jupiter masses).
Astronomers Use Spitzer Space Telescope to Challenge Brown Dwarf Formation Models
WASHINGTON, D.C. — A group of astronomers led by Neal Evans of The University of Texas at Austin has used NASA’s Spitzer Space Telescope to show that brown dwarfs form like stars — by pulling in matter from a collapsing gas cloud and forming disks of potentially planet-forming material around themselves — and that such disks are common around young brown dwarfs.
...C2d team members Katelyn Allers, Jacqueline Kessler-Silacci, Daniel Jaffe, and Lucas Cieza of The University of Texas at Austin found about a dozen disk-surrounded brown dwarfs in the southern-hemisphere constellations Chamaeleon, Lupus, and Ophiuchus. Some of the brown dwarfs have a mass of five to 10 Jupiters, and are only a few million years old — young, astronomically speaking.
So can YOU please give me the names of these newly-discovered distant galaxies that astronomers somehow confused with a massive object in our solar system?
Not links to research about "nine bright pointlike sources", just the ONE "mystery heavenly body" mentioned in the Washington Post, NY Times, US News and World Report, etc. All of these articles were referring to ONE object approximately the size of Jupiter and 50 billion miles from Earth.
It does have a name, doesn't it?
Originally posted by stereologist
reply to post by GoldenFleece
Despite the fact that there were multiple objects in question the reporter chose to write an article which did not match the presentation made by the astronomers.
The New York Times
January 30, 1983
Clues Get Warm in the Search for Planet X
By John Noble Wilford
Something out there beyond the farthest reaches of the known solar system seems to be tugging at Uranus and Neptune. Some gravitational force keeps perturbing the two giant planets, causing irregularities in their orbits. The force suggests a presence far away and unseen, a large object that may be the long-sought Planet X.
US News World Report
Planet X - Is It Really Out There?
Sept 10, 1984
Shrouded from the sun's light, mysteriously tugging at the orbits of Uranus and Neptune, is an unseen force that astronomers suspect may be Planet X - a 10th resident of the Earth's celestial neighborhood. Last year, the infrared astronomical satellite (IRAS), circling in a polar orbit 560 miles from the Earth, detected heat from an object about 50 billion miles away that is now the subject of intense speculation.
"All I can say is that we don't know what it is yet," says Gerry Neugesbeuer, director of the Palomar Observatory for the California Institute of Technology. Scientists are hopeful that the one-way journeys of the Pioneer 10 and 11 space probes may help to locate the nameless body.
Does the Sun Have a Dark Companion?
June 28, 1982
When scientists noticed that Uranus wasn't following its predicted orbit for example, they didn't question their theories. Instead they blamed the anomalies on an as yet unseen planet and, sure enough, Neptune was discovered in 1846. Now astronomers are using the same strategy to explain quirks in the orbits of Uranus and Neptune. According to John Anderson of the Jet Propulsion Laboratory in Pasadena, Calif., this odd behavior suggests that the sun has an unseen companion, a dark star gravitationally bound to it but billions of miles away.
Q: When is an object too large to be called a “planet”?
A: The new definitions proposed by the IAU seek only to define the lower boundary between an object that is a “planet” or a “small Solar System body.” At this time there is no official IAU definition in place or proposed that defines the upper limit for when an object is, for example a “planet” or a “brown dwarf.” This limit is generally thought to be about 13 times more massive than Jupiter, but is subject to discussion.
The group also found these objects are less massive than the smallest stars. “You can’t weigh these brown dwarfs directly,” Allers says. “We used theoretical models to figure out that they may have masses as low as five to 10 Jupiter masses.”
And despite ANOTHER failed attempt at diversion and deception, you STILL can't come up with a name for your mythical "galaxy"?
But it still doesn't answer my question: how is it that "hypothetical" objects in our solar system are named, but newly-discovered "distant galaxies" aren't?
Because you'd have to be really dopey to think that SIX "galaxies" could be the ONE object described in the articles above.
Unidentified point sources in the IRAS minisurvey
Houck, J. R.; Soifer, B. T.; Neugebauer, G.; Beichman, C. A.; Aumann, H. H.; Clegg, P. E.; Gillett, F. C.; Habing, H. J.; Hauser, M. G.; Low, F. J.; Miley, G.; Rowan-Robinson, M.; Walker, R. G.
AA(Cornell University, Ithaca, NY), AB(California Institute of Technology, Pasadena, CA), AC(California Institute of Technology, Pasadena, CA), AD(California Institute of Technology, Jet Propulsion Laboratory, Pasadena, CA), AE(California Institute of Technology, Jet Propulsion Laboratory, Pasadena, CA), AF(Queen Mary College, London, England), AG(Kitt Peak National Observatory, Tucson, AZ), AH(Leiden, Rijksuniversiteit, Sterrewacht, Leiden, Netherlands), AI(NASA, Goddard Space Flight Center, Greenbelt, MD), AJ(Steward Observatory, Tucson, AZ)
Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 278, March 1, 1984, p. L63-L66. (ApJL Homepage)
Nine bright pointlike 60 μm sources have been selected from the sample of 8709 sources in the IRAS minisurvey. These sources have no counterparts in a variety of catalogs of nonstellar objects. Four objects have no visible counterparts, while five have faint stellar objects visible in the error ellipse. These sources do not resemble objects previously known to be bright infrared sources.
Originally posted by DJW001
reply to post by GoldenFleece
No, the six galaxies are obviously not the hypothetical companion that is referred to in the articles above;
Originally posted by SystemResistor
There is a remote chance that it has a moon or moons, and that its moon will intersect our solar system at a precise point, so not really an elliptical orbit, but something more like this:
There is a theory that our solar system is actually apart of a different Galaxy to the Milky Way, that it was a part of a galaxy called the "Saggitarius Dwarf Galaxy" - and it could be that our solar system collided with a solar system from the Milky Way Galaxy. Again, its all speculation, but an interesting possibility nonetheless.
There is also a chance that is is a lone star, and has its own orbit around the Milky Way, and it intersects our entire solar system at a particular point.
The most far-out theories I have read:
1) Its a time-travelling, dimension-jumping spaceship planet that temporarily warps our timespace.
2) Its a small star that is in another dimension and appears as an illusion.
However, really, it could be a reflection of the sheer boredom that we all experience, people could actually want something catastrophic to happen, so they can pretend to be in one of those "end of days" movies or something...