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Topic: Beta Hydri

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	Dainis Dravins (Lund Observatory)
		Beta Hydri (of the constellation Hydrus, not Hydra) is the closest subgiant (G2 IV) and one of the oldest stars in the solar Galactic neighborhood.
		A relatively high lithium abundance of Beta Hydri may be a signature of the early subgiant stage, when lithium that once diffused to beneath the main-sequence convection zone, is dredged up to the surface as the convection zone deepens.
		For Beta Hyi, the average profile over twelve years is shown (bold), while the dotted curve is the spectrum of integrated sunlight, as revealed by an IUE observation of the Moon with nominally identical instrumental settings.
	www.astro.lu.se /~dainis/HTML/ACTIVITY.html (1211 words)

	Beta Hydri - Wikipedia, the free encyclopedia
		Beta Hydri (Î² Hyi / Î² Hydri) is a star about 24.4 light years away from Earth.
		Make sure not to confuse "Hydri" with "Hydra." It's the second brightest star in the constellation Hydrus (the water snake) hence the beta part of it's name.
		Beta Hydri is often studied because it might give insights on what might happen to our sun in the next 2.5 billion years.
	en.wikipedia.org /wiki/Beta_Hydri (114 words)

	Search Encyclopedia.com
		beta particle beta particle, one of the three types of radiation resulting from natural radioactivity.
		Beta radiation (or beta rays) was identified and named by E. Rutherford, who found that it consists of high-speed electrons.
		The beta group are more destructive of red blood cells; they also produce toxic subst...
	www.encyclopedia.com /searchpool.asp?target=Beta+Hydri (284 words)

	News in Science - Distant Pulsing Sun Observed - 31/01/2001
		The pulsing star, beta Hydri, is in the southern constellation Hydrus and was observed with the 3.9-m Anglo-Australian Telescope near Coonabarabran, NSW.
		Beta Hydri has about the same mass and temperature as the Sun, but is older: about seven billion years rather than the Sun's 4.5 billion years.
		Because of this, astronomers predicted that beta Hydri's oscillations would take 15 to 20 minutes, and indeed, the research team found the oscillation period was 17 minutes.
	www.abc.net.au /science/news/stories/s239461.htm (637 words)

	SPACE.com -- Stellar Senior Citizens Shed Light on Sun"s Demise
		Beta Hydri is about the same size and temperature as our Sun but it is nearly twice as old -- about 7 billion years old -- and it is taking the last puffs of the hydrogen fuel that powers its thermonuclear core.
		Since Beta Hydri is older than the Sun, the oscillation periods were expected to be longer, on the order of 15 to 20 minutes.
		The researchers studied Beta Hydri, which is 24 light-years away, with the 154-inch (3.9-meter) Anglo-Australian telescope.
	www.space.com /scienceastronomy/astronomy/pulsing_star_010205.html (569 words)

	Beta Hydri
		Beta Hydri is also the closest confirmed subgiant star to Sol and one of the older as well as highly evolved stars of the Sun's spectral class in the Solar neighborhood.
		Beta Hydri is a yellow-orange main sequence dwarf star of spectral and luminosity type G2 IV.
		Supporting the hypothesis that Beta Hydri is older than Sol, the star's surface pulses in and out with a longer period of oscillation than does Sol -- at 17 minutes instead of Sol's five (see 2/1/00 press release from the Anglo-Australian Observatory).
	www.solstation.com /stars/bethydri.htm (766 words)

	Earth Change News on Earth Changes TV on the Web
		Just as a child might look to an older sister to guess at what she might become, scientists might look at Beta Hydri to see what the Sun's more immediate future might be.
		Beta Hydri is about the same mass and temperature as the Sun so it was a good candidate for comparison.
		The Sun's pulse is fast, with tiny oscillations coming as frequently as every five minutes; with a slightly older star like Beta Hydri, astronomers expected a slower pulse and they got it: the guess was between 15 and 20 minutes, with the actual observation was 17 minutes.
	www.earthchangestv.com /breaking/February2001/PrinterFriendly/0201PulseSun.htm (613 words)

	Southern star pulsates like the sun, say astronomers
		Beta Hydri is a nearby star in the constellation Hydrus, or Southern Water Snake.
		It is similar to the sun in mass and temperature, but is estimated to be about seven billion years old, compared to about 4.5 billion years for the sun.
		"Beta Hydri gives us a good idea of what the sun will look like in a few billion years," said researcher Tim Bedding of the University of Sydney.
	www.eurekalert.org /pub_releases/2001-01/NSF-Sspl-2901101.php (519 words)

	MSN Encarta - Search Results - Beta Hydri
		Beta Hydri is less than 13Â° from the south celestial poleâ”...
		The first alphabet was probably developed at least 3,500 years ago by people who lived on the eastern shore of the Mediterranean Sea and spoke a...
		The common beet is classified as Beta vulgaris.
	encarta.msn.com /Beta_Hydri.html (159 words)

	Encyclopedia Galactica - Ao to Aq - Human (Anglic) Revised 351st Edition
		Beta Hydri is an old star that has gone into the subgiant stage.
		April was a popular early colonization target, but as Beta Hydri began to show signs of increased variability the planet declined.
		The remaining Aprils adapted themselves and the ecology to the varying degree of temperature, and became the first tweak clade adapted to living around variable stars.
	www.orionsarm.com /eg/a/Ao-Aq.html (1174 words)

	Spaceflight Now \| Breaking News \| Astronomers take the pulse of a Sun-like star
		The slow 'pulse rate' of the star, beta Hydri in the southern constellation Hydrus, confirms astronomers' ideas of what the Sun will be like a few billion years from now.
		But it's much harder to detect the pulsing of a star such as beta Hydri, which is 1.5 million times further away than the Sun.
		Beta Hydri has about the same mass and temperature as the Sun, but is older: about 7 billion years rather than the Sun's 4.5 billion years.
	spaceflightnow.com /news/n0101/31pulsating (1031 words)

	Beta Hydri, Home of the Novagen Foundation
		It contained a varied group of idealists, entrepreneurs, shiftless dreamers and ambitious transhumanists as it went on its 30-year journey to Beta Hydri a yellow sub-giant star 24.37 l.y.
		Beta Hydri is a prosperous system mainly thanks to the efforts of the earlier species of uplifts that never quite shook off their psuedo-philsophy designed by DNA Systems.
		Beta Hydri is fairly neutral in the heady world of Community politics, only raising its voice when matters personally effect Novagens such as releasing uplifts trapped in contract work in the
	www.angelfire.com /realm2/comgalaxy/Beta_Hydri.html (978 words)

	Istra (Site not responding. Last check: 2007-11-04)
		While Majat had colonized Istra (and other stars) with the help of the Kontrin Humans, their home world was supposed to be Cerdin, the third planet out from Alpha Hydri2.
		Istra is the second closest planet orbiting Beta Hydri, which is more easily referenced in current star catalogues as HR 98 or HD 2151.
		Beta Hydri is a yellow-orange dwarf star (G1-2 IV) that may be evolving off the main sequence as a variable subgiant, as it begins to fuse the helium ash accumulating at its core.
	members.nova.org /~sol/solcom/cjc/istra.htm (213 words)

	Ajax
		Beta Hydri was initially a system that was founded independent of Imperial governorship.
		In 2223, Beta Hydri was settled by approximately 100,000 settlers.
		Thus, they had decided to immigrate to the Beta Hydri system, and they established the Republic of Ajax.
	www.edenabove.agnostos-theos.net /geography/empire/ajax.html (938 words)

	Abstract (Site not responding. Last check: 2007-11-04)
		Hydri is done by adjusting the evolutionary sequences to the most recent bolometric, spectroscopic and astrometric data.
		The dependence of the solution on some of the relevant modelling parameters is analysed and the degeneracy of the solution using the HR Diagram analysis discussed.
		Hydri are presented and the expected seismic behaviour of the star described.
	www.astro.up.pt /porto-ac/posters/poster/fernandes.html (123 words)

	Alpha Hydri (Site not responding. Last check: 2007-11-04)
		Alpha Hydri is due south of Achernar (alpha Eridani) and in the same field of view: binoculars.
		The other two major stars, beta and gamma, are farther to the south, both being isolated in their regions and quickly spotted with the naked eye.
		Gamma is eight degrees to the southeast of this small central group and beta is a bit farther to the southwest -- about five degrees south of the Small Magellanic Cloud in Tucana.
	www.dibonsmith.com /hyi_a.htm (150 words)

	Beta Hydri
		The planets that were too far from the habitable zone (too cold) now have a chance to heat up.
		In our example, we see a world that was frozen last 6 billion years ( Beta Hydri is estimated to be 6.7 billion years old) and now becomes habitable zone.
		Unfortunately there is no enough time for intelligent life to evolve from now on, because compared with the "speed" of life evolution, this star's future evolution will be much faster (1.3 billion years to become a red giant).
	www.bibliotecapleyades.net /nuevo_universo/betahyd.htm (168 words)

	What's New at the AAO
		Hydri, which is 1.5 million times further away than the Sun.
		Beta Hydri has about the same mass and
		The research on beta Hydri has been accepted for publication as a
	www.aao.gov.au /press/sunlikestar.html (695 words)

	[No title]
		In the solar neighborhood, the nearest normal single sun-like star, with an advanced age (~9 Gyr) known from evolutionary tracks, is Beta Hydri (G2 IV).
		The historical data reveal -- through evidence for a `cool' corona (500,000 K) and a low-excitation wind akin to those of the red giants -- that Beta Hyi is a natural link between the ostensibly disparate properties of activity on the MS and in the giant branch.
		A crucial aspect of the analysis will be to tie together the historical X-ray studies of Beta Hyi by EXOSAT and new results obtained from the ROSAT survey (and possibly also pointed observations).
	ecf.hq.eso.org /poa/FOS/props/4492c.pro (1518 words)

	Dictionary of Meaning www.mauspfeil.net
		'''Beta Hydri''' (β Hyi / β Hydri) is a star about 24.4 light year s away from Earth.
		The star is a main sequence star of Spectral_type spectral type G2.
		There you find a list of all editors and the possibility to edit the original text of the article Beta Hydri.
	www.mauspfeil.net /Beta_Hydri.html (98 words)

	Science Fiction Writer Robert J. Sawyer: Calculating God
		"Hydri" was the genitive of Hydrus, the small water snake, a faint constellation close to the south celestial pole.
		And beta, of course, was the second letter of the Greek alphabet, meaning that Beta Hydri would be the second-brightest star in that constellation as seen from Earth.
		On Beta Hydri III, it was endothermic octopeds like me taking centrality from the pentapeds.
	www.sfwriter.com /sccg.htm (5196 words)

	Timeline to 2300
		Comparisons to the ruins on Daikoku (Beta Hydri II) showed that both sets of ruins were made by the same species.
		While artifacts were fewer and in poorer conditions than those on Daikoku (Beta Hydri II), many were unique to Heidelsheimat, and sparked considerable debate about the differences between the two colonies.
		The life support system had been shut off, and interpretation of documents found there (written entirely in the Laboratory's new language) revealed that Vachon had directed it to be shut off in order to achieve a "deathless state" which the failure to renounce the "material state" within which humanity confined itself prevented them from achieving.
	home.earthlink.net /~ad2300/2300-tl.htm (12871 words)

	The Star Kingdom of Swan - Beta Hydri Star System (Site not responding. Last check: 2007-11-04)
		The Beta Hydri system is situated in the Sirius subsector.
		The systems sole inhabited world is Athras (Beta Hydri Four) which was first colonised by humans in 2890 as an independent agricultural colony.
		The systems main fame to claim is a relic operational stargate connecting the system with Verity in the Sirius Cartel.
	www.skaran.net /Starkingdom/Beta%20Hydri/starsystem.html (78 words)

	Imago Mundi - L'Hydre mâle.
		La Tête de l'Hydre = Alpha Hydri est une étoile de la séquence principale, de type F0, et de magnitude apparente 2,86.
		Bêta Hydri ressemblerait presque à notre Soleil (tout juste un peu plus chaude et quand même 3,5 fois plus brillante avec une magnitude absolue de 3,45).
		Gamma Hydri, de magnitude apparente 3,26 est une géante rouge, 180 fois plus lumineuse que le Soleil (magnitude absolue de -0,83), éloignée de 220 années-lumière.
	www.cosmovisions.com /hyi.htm (124 words)

	TexasBestGrok: Calculating God
		Thomas Jericho, the paleontologist who makes first contact with the spider-like Hollus from Beta Hydri, is an atheist.
		Hollus explains that he came to Earth with his colleagues (some of whom are aliens from Delta Pavonis II) to investigate mass extinctions as turning points in the evolution of life.
		During their initial interchange, Hollus reveals that Earth, Beta Hydri, and Delta Pavonis II all experienced mass extinctions at the same points in their histories, even though the three planets were all of very different ages.
	texasbestgrok.mu.nu /archives/076638.php (646 words)

	Lund Observatory, Box 43, SE-22100 Lund, Sweden (ResearchIndex)
		Beta Hydri (G2 Iv): A Revised Age For The Closest Subgiant Dainis Dravins,...
		Abstract: The secular evolution of solar-type atmospheres may be studied through comparisons of the current Sun with old solar-type stars of known age.
		Among the few such stars in the solar Galactic neighborhood, fi Hydri (G2 IV) stands out as a normal single star with an advanced age.
	citeseer.ist.psu.edu /207203.html (205 words)

	Science & Technology at Scientific American.com: Hearing a Star's Heartbeat (Site not responding. Last check: 2007-11-04)
		An international team of astronomers has measured the exact "heartbeat" of a pulsating star 24 light-years away—confirming theoretical predictions and getting a glimpse of what may become of our own sun a few billion years from now.
		The star they studied—beta Hydri in the southern constellation Hydrus—is about 2.5 billion years older than our sun.
		Whereas these oscillations on the sun have a period of about five minutes, the scientists expected beta Hydri's pulse to be much slower—having a period closer to 15 to 20 minutes.
	www.sciam.com /article.cfm?chanID=sa003&articleID=000EAC5E-9B2B-1C5A-B882809EC588ED9F (377 words)

	Uller (Site not responding. Last check: 2007-11-04)
		Its primary is Beta Hydri, a G0 star about 21 light years from Earth.
		Uller 's axial tilt is near 90 degrees, so it has extremely pronounced seasons with polar temperatures running from 120 C to -80 C. The Beaufort scale "ran up to 30".
		Uller is slightly over 1 AU from Beta Hydri.
	www.nesfa.org /piper/html/Uller.html (241 words)

	Citebase - Solar-Like Oscillations in beta Hydri: Evidence for Short-Lived High-Amplitude Oscillations (Site not responding. Last check: 2007-11-04)
		Citation coverage and analysis is incomplete and hit coverage and analysis is both incomplete and noisy.
		Solar-Like Oscillations in beta Hydri: Evidence for Short-Lived High-Amplitude Oscillations
		Velocity measurements of the G2 subgiant beta Hyi with both UCLES and CORALIE show a clear excess of power centred at 1.0 mHz.
	citebase.eprints.org /cgi-bin/citations?id=oai%3AarXiv%2Eorg%3Aastro%2Dph%2F0202471 (285 words)

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