More than 90 percent of objects found in the vast outer-solar system reservoir may have been born around other stars
in [Physics]
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From: Greg Neill on 11 Jun 2010 12:56 Brad Guth wrote: > Sirius(B) is the only seriously big one of up to 9 solar mass that > went nova(helium flashover), as well as having lost its tidal radii > grip on its planets and their moons upon collapsing from its red > supergiant phase as of a little more than 65 million years BP. > > The original Sirius star/solar system was extremely nearby and likely > worth <12.5 Ms, and once again we're closing back in on the remainders > that includes its complex Oort cloud. 1. Sirius(B) has a mass of about the same as that of the Sun. It's original mass is estimated at about 5 solar masses. Sirius(A) has a mass of about 2.1 times that of the Sun. 2. The Sirius system has a net redshift, meaning that it is travelling away from us, along with any attendant planets or smaller bodies. 3. The age of the Sirius system is estimated to be between 200 and 300 million years, which is an eyeblink when compared to the current age of our own solar system.
From: MIB on 11 Jun 2010 15:06 "Greg Neill" <gneillRE(a)MOVEsympatico.ca> wrote in message news:aVtQn.396313$kj4.98493(a)unlimited.newshosting.com... > > 1. Sirius(B) has a mass of about the same as that of > the Sun. It's original mass is estimated at about > 5 solar masses. Sirius(A) has a mass of about 2.1 > times that of the Sun. > > 2. The Sirius system has a net redshift, meaning that it > is travelling away from us, along with any attendant > planets or smaller bodies. > > 3. The age of the Sirius system is estimated to be between > 200 and 300 million years, which is an eyeblink when > compared to the current age of our own solar system. Bwahahaha. Don't confuse Guthtard with facts. His response will be some gibberish about a friend of his and radial velocity.
From: Brad Guth on 11 Jun 2010 21:00 On Jun 11, 9:56 am, "Greg Neill" <gneil...(a)MOVEsympatico.ca> wrote: > Brad Guth wrote: > > Sirius(B) is the only seriously big one of up to 9 solar mass that > > went nova(helium flashover), as well as having lost its tidal radii > > grip on its planets and their moons upon collapsing from its red > > supergiant phase as of a little more than 65 million years BP. > > > The original Sirius star/solar system was extremely nearby and likely > > worth <12.5 Ms, and once again we're closing back in on the remainders > > that includes its complex Oort cloud. > > 1. Sirius(B) has a mass of about the same as that of > the Sun. It's original mass is estimated at about > 5 solar masses. Sirius(A) has a mass of about 2.1 > times that of the Sun. But from what, how and when did Sirius(B) it get to that current mass? > > 2. The Sirius system has a net redshift, meaning that it > is travelling away from us, along with any attendant > planets or smaller bodies. That's just dead wrong, and otherwise mainstream status-quo silly, because your own peers disagree with you. -7.6 km/sec means that we're closing in on Sirius. > > 3. The age of the Sirius system is estimated to be between > 200 and 300 million years, which is an eyeblink when > compared to the current age of our own solar system. Exactly (+/- 50 million years). Do try to keep up. ~ BG
From: Brad Guth on 11 Jun 2010 21:03 On Jun 11, 12:06 pm, "MIB" <brokenaddr...(a)ask.com> wrote: > "Greg Neill" <gneil...(a)MOVEsympatico.ca> wrote in message > > news:aVtQn.396313$kj4.98493(a)unlimited.newshosting.com... > > > > > 1. Sirius(B) has a mass of about the same as that of > > the Sun. It's original mass is estimated at about > > 5 solar masses. Sirius(A) has a mass of about 2.1 > > times that of the Sun. > > > 2. The Sirius system has a net redshift, meaning that it > > is travelling away from us, along with any attendant > > planets or smaller bodies. > > > 3. The age of the Sirius system is estimated to be between > > 200 and 300 million years, which is an eyeblink when > > compared to the current age of our own solar system. > > Bwahahaha. Don't confuse Guthtard with facts. His response will be some gibberish > about a friend of his and radial velocity. Your toilet brain has spoken. Way to go, MIB. Are you and your friend now going to cite as to how fast we're supposedly moving away from Sirius? ~ BG
From: Sam Wormley on 11 Jun 2010 22:43
On 6/11/10 8:00 PM, Brad Guth wrote: > But from what, how and when did Sirius(B) it get to that current mass? > http://stars.astro.illinois.edu/sow/sirius.html "Sirius B, however, is actually the hotter of the two, a blue-white 24,800 Kelvin. Though typically separated from each other by a few seconds of arc, Sirius B is terribly difficult to see in the glare of Sirius A. The only way the companion star can be both hot and dim is to be small, only 0.92 the size of Earth, the total luminosity (including its ultraviolet light) just 2.4 percent that of the Sun. The two orbit each other with a 50.1 year period at an average distance of 19.8 Astronomical Units, about Uranus's distance from the Sun, a large orbital eccentricity carrying them from 31.5 AU apart to 8.1 AU and back again. They were closest in 1994 and will be again in 2044, while they will be farthest apart in 2019. From the orbit (and spectroscopic data), we find that Sirius A and B have respective masses of 2.12 and 1.03 times that of the Sun. Sirius B is the chief member of a trio of classic white dwarfs, the others Procyon B and 40 Eridani B. Its high mass and tiny radius lead to an amazing average density of 1.7 metric tons per cubic centimeter, roughly a sugar cube. White dwarfs are the end products of ordinary stars like the Sun, tiny remnants that were once nuclear-fusing cores that have run out of fuel. Most are balls of carbon and oxygen whose fates are merely to cool forever. To have evolved first, Sirius B must once have been more massive and luminous than Sirius A. That its mass is now lower is proof that stars lose considerable mass as they die. Given the mass of the white dwarf and the 250 million year age of the system, Sirius B may once have been a hot class B3-B5 star that could have contained as much as 5 to 7 solar masses, the star perhaps losing over 80 percent of itself back into interstellar space through earlier winds". |