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	40 Eridani
		40 Eridani B is a white dwarf, the first such star to be discovered.
		40 Eridani C is a red dwarf and also a flare star with the variable star designation DY Eridani.
		40 Eridani A is the Vulcan homeworld in the fictional universe of Star Trek.
	www.daviddarling.info /encyclopedia/A/40_Eridani.html (168 words)

	Sector 001: Vulcan's Sun
		The enormous density of 40 Eridani B is typical of a white dwarf: 44% of the Sun's mass crammed into a sphere only twice the diameter of the earth.
		The stellar material of 40 Eridani B is 90,000 times denser than water; a cubic inch of it weighs 2 tons, and the surface gravity of the star is 37,000 times that of Earth.
		40 Eridani B and C are much too far away from 40 Eridani A to appear as disks to an observer on Vulcan; they would appear as points of light to the naked eye, albeit very bright points of light.
	www.projectrho.com /vulsun.htm (1292 words)

	40 Eridani - Slider
		40 Eridani (also known as Omicron 2 Eridani, or Keid, from the Arabic word qayd "(egg) shells") is a triple star system less than 16.5 light years away from Earth.
		The primary star of 40 Eridani is an orange main sequence dwarf of spectral type K1, observed to be about 4 billion years old.
		The two companion stars, 40 Eridani B, a 9th magnitude white dwarf (spectral type A VII) and 40 Eridani C an 11th magnitude red dwarf (spectral type M4e V), orbit each other 400 astronomical units from the primary star.
	enc.slider.com /Enc/40_Eridani (204 words)

	40 (Omicron2) Eridani 3
		Because Omicron1 Eridani was named "The Egg" (Al Baid, now Beid) by the Arabs for its position near the nest of the Ostrich (Theta Eridani 2, which is located much further south), Omicron2 Eridani nearby to the southeast was called "The Egg-shells" (or Al Kaid, now "Keid").
		40 Eridani B is a young white dwarf (a remnant stellar core which enriched its closer companion, Eridani C, with elements heavier than hydrogen when it cast off its outer gas layers) like planetary nebula NGC 2440.
		The distance from 40 Eridani A where an Earth-type planet would be "comfortable" with liquid water is centered around 0.61 AU -- between the orbital distance of Mercury and Venus in the Solar System.
	www.solstation.com /stars/40erida3.htm (1321 words)

	Galactopedia 0-9 Section (Site not responding. Last check: 2007-11-04)
		40 Eridani B and 40 Eridani C are a binary pair that orbit each other at a period of about 252 years, anywhere between 21 and 49 AUs distant from each other.
		40 Eri B is locked in orbit with 40 Eridani C, both of which orbit the primary 40 Eridani A. 40 Eri B was the first white dwarf star to be recorded by Terran astronomers.
		40 Eri C is locked in orbit with 40 Eridani B, both of which orbit the primary 40 Eridani A. ("Spock's World" [Pocket TOS HC]).
	captainmike.org /Galactopedia/01.html (738 words)

	MAP OF THE FEDERATION CORE
		Vulcan (40 Eridani A) Vulcan is the name that humans have applied to the class-M planet orbiting 40 Eridani A, a star that is 16 light years from Earth.
		The 40 Eridani system is a double-star system, with an average separation of 400 AU between the stars, thus allowing full planetary systems around the component stars.
		40 Eridani A is a class-K1 star, so a class-M planet would exist at less than half the distance to the star that Earth is from its sun.
	ussathena.iwarp.com /maps/fedcoretxt.htm (2949 words)

	40 Eridani - Wikipedia, the free encyclopedia
		Eridani, or Keid, from the Arabic word qayd "(egg) shells") is a triple star system less than 16.5 light years away from Earth.
		It is in constellation Eridanus and was discovered to be a double star in 1783 by William Herschel.
		The habitable zone (where a planet could exist with liquid water) of 40 Eri A is near 0.61 AU.
	en.wikipedia.org /wiki/40_Eridani (377 words)

	40 Eridani (Site not responding. Last check: 2007-11-04)
		The planet orbits the star Epsilon Eridani, which is 10.5 light-years away...
		40 Eridani or Keid or Omicron 2 Eridani is a triple star system less than 16.5 light years away from Earth.
		The primary star is an orange main sequence dwarf of spectral type K1, observed to be about 4 billion years old.
	publicliterature.org /en/wikipedia/4/40/40_eridani.html (196 words)

	Vulcan Information
		40 Eridani is atriple star system comprised of a brilliant giant primary and two dwarfs, one red and one white.
		The giant primary, 40 Eridani A, is the only star of the group to support aClass M world.
		Vulcan is part of a double planet grouping that orbits 40 Eridani A. The other world, T'Khut, is a Class H planet that moves in a trojan relationship with Vulcan, in which both planets revolve around a common point.
	www.ucip.org /map/RacePlanet/Vulcan.html (1074 words)

	Stars! Project - Eridanus
		Achernar(also known as Alpha Eridani) is the 9th brightest star in the sky, even though it is a distant 70 light years away.
		Omicron 2, also known as 40 Eridani, is actually a system of 3 stars, named A, B, and C, all located about 16 light years away.
		40 Eridani B, the 9th magnitude white dwarf, is the easiest white dwarf to observe with a small telescope.
	www.astro.psu.edu /xray/eridanus/astro.html (560 words)

	OSSERVATORIO G.V. SCHIAPARELLI - SEZIONE SPETTRI
		40 Eri B is among the few white dwarfs that are visibile with small telescopes (see the table at the bottom of this page).
		40 Eridani is so bright because it is very close, only 16 ly, to the sun.
		The principal component is a 4.5 mag K1 V star, the B component is the white dwarf with mag 9.7 and the third component is a 10.8 mag M dwarf.
	www.astrogeo.va.it /astronom/spettri/nane-bien.htm (467 words)

	[No title]
		[Diagram here of 40 Eridani's starspot cycle, showing that the latest peak in starspot activity was in 1989.] Two companion stars--a 9th-magnitude white dwarf and an 11th-magnitude red dwarf--orbit each other about 400 astronomical units from the primary.
		A TECHNICAL DESCRIPTION OF THE 40 ERIDANI TRINARY SYSTEM 40 Eridani A, the primary star (and Vulcan's sun) is an orange main-sequence dwarf of spectral type K1 V, which makes it a cousin to our own Sun.
		40 Eridani C is a very faint red main-sequence dwarf of spectral type M4e V. Below are the star's other specs, as compared to those of the Sun: Surface temperature: 3000 deg K (Sun = 6000 deg K) Luminosity: 0.08% of the Sun's Diameter: 374,100 mi.
	www.marketaz.co.uk /StarTrek/Vulcan/Where_is_Vulcan.txt (1338 words)

	Keid (Site not responding. Last check: 2007-11-04)
		An unassuming star, Keid (Omicron-2) of Eridanus (and more commonly known by its Flamsteed number, 40 Eridani) seems to play second fiddle to its somewhat brighter neighbor Beid, Keid the Arabic "egg shells" of Beid, "the eggs." The two stars are not a true binary, Beid seven times farther than Keid.
		From the orbit, the white dwarf, 40 Eridani B, has a mass of just 0.50 times that of the Sun, the smallest of the classic three white dwarfs, the other two Procyon B and
		The mass of the red dwarf, 40 Eridani C, is much smaller than that of 40 Eri B, 0.16 solar.
	www.astro.uiuc.edu /~kaler/sow/keid.html (660 words)

	40 Eridani system - Memory Alpha - A Wikia wiki
		40 Eridani (also known as Keid or Omicron 2 Eridani) is a star system, located about 16.45 light years from Sol consisting of trinary companion stars (40 Eridani A, and two others).
		Both stars are in an orbit with an 8,000 year period about 418 AUs from 40 Eridani A. 40 Eridani B was the first white dwarf star to be recorded by Human astronomers.
		References to the 40 Eridani system are mostly derived from background graphics and notations, not from any aired dialogue.
	www.memory-alpha.org /en/wiki/Vulcan_System (229 words)

	40 Eridani B Mass and Radius
		The white dwarf 40 Eri B can serve as an interesting constraint on models of the evolution of low-mass stars and on other astrophysical determinations that depend on these models (such as the use of white dwarfs to determine the distances to globular clusters).
		One way to determine the radius of 40 Eri B is simply to average the two values and use the average difference between each individual determination as the uncertainty.
		The dashed line is a Wood (1994) relation for an 15,000 K hydrogen surface white dwarf, the dotted line is the relation determined from surface gravity, and the heavy lines show the results determined from gravitational redshift measurements.
	ecf.hq.eso.org /~ralbrech/sepdec97apjl/975222.html (3005 words)

	Eridanus League
		The League was started unilaterally by the broadcast of the River of Stars Charter from the moon Epsilon Eridani II-D, although the concept had been proposed and promoted among the colonies by Hoa-van-Huynh and his followers since AT 770 (2739).
		Epsilon was terraformed by some of the earliest interstellar colonisation ventures (Mars Interstellar, Kelkemesh Ventures and Eridani Vision Inc.) in the Nanotech Window, after a period of initial disagreements forming the Eridanus League to oversee the terraforming and administration.
		To their credit, the military forces organized by the Epsilon Eridani council to defend other worlds never used their armaments to force defecting worlds to return to the fold, and even in the crisis years there were surprisingly few attempts by the SCS commanders to alter the local balance of power during inter-colony disputes.
	www.orionsarm.com /historical/Eridanus_League.html (1767 words)

	SPACE.com -- New 'Vulcan' Planet Tantalizes Astronomers
		Epsilon Eridani is much younger than the sun, only about 0.5-1 billion years old while the sun is 4.5 billion years old.
		The bright spot at the 7:00 position is a large concentration of dust perhaps caused by the gravity of an unseen planet.
		His point: Epsilon Eridani is yet another star where its biggest planet interferes with the possibility of having habitable earthlike planets sorry Mr.
	www.space.com /scienceastronomy/astronomy/epsilon_folo_000809.html (1122 words)

	USS Allegiance - Vulcans (via CobWeb/3.1 planetlab2.cs.virginia.edu) (Site not responding. Last check: 2007-11-04)
		Vulcan is an M-Class planet located in the 40 Eridani star system.
		The Vulcan star system, 40 Eridani (or Omicron 2 Eridani), is an interesting trinary system located at the distance of only 4.9 parsecs (=16 Lightyears) from Earth.
		40 Eridani C is a very faint red main-sequence dwarf of spectral type M4e V. Old Vulcan letters
	www.geocities.com.cob-web.org:8888 /Area51/Dreamworld/2460/database/vulcans.htm (729 words)

	Flare Sci-Fi Forums: Location of Andor ($$$)
		It's generally accepted that Vulcan is in the trinary system of 40 Eridani, AKA Omicron 2 Eridani.
		40 Eridani, by the way, is only about a third as luminous as Sol.
		The 40 Eridani system is 16 light years away from Earth in our galaxy but maybe 10 light years in ST, Epsilon Indi could be older in the ST galaxy, etc.
	flare.solareclipse.net /cgi2/ultimatebb.cgi?ubb=get_topic;f=4;t=000242;p=0 (1615 words)

	The First 100 Years
		In 3 A explorers reached Epsilon Eridani, the system, despite the fact that the star is bright enough, is uninhabitable because the gravity of Dagda, the third planet and a gas giant, sweeps the habitable zone clean.
		The satellites, which were simply relaying telemetry to Mnralla (40 Eridani A II), quickly picked up the expedition, and a scout ship was dispatched from Mnralla to investigate the new aliens.
		One was a short extension, the P Eridani system which served as the prime trade gate to the Mrida, the Ithor, and the Yorcha.
	homepage.mac.com /pfhreak/scifisite/timelines/alliance/alliance_100.html (2010 words)

	40 Eridani A Starfleet Construction Yards - Memory Alpha - A Wikia wiki
		40 Eridani A Starfleet Construction Yards - Memory Alpha - A Wikia wiki
		The 40 Eridani A Starfleet Construction Yards are Federation shipyards located in the solar system of 40 Eridani A in the 24th century.
		The Miranda-class starship Brattain was built by Yoyodyne Division at these yards on stardate 22519.5.
	www.memory-alpha.org /en/index.php/40_Eridani_A_Starfleet_Construction_Yards (164 words)

	40/Omicron2 Eridani ABC System Orbits (Site not responding. Last check: 2007-11-04)
		Center of H.Z. This animation attempts to relate the orbits (and possible habitable zones) of Stars A, B, and C in the 40 (Omicron2) Eridani 3 system -- also known as Keid -- to their respective centers of mass.
		To enlarge the display, the orbits have been arbitrarily rotated by 45 degrees.
		The stars in the BC pair have an "average" separation of about 35 AUs (of a semi-major axis) in a highly elliptical orbit (e= 0.410) that lasts about 252 years and swings between 21 and 49 AUs (Wulff D.
	www.solstation.com /orbits/40erisys.htm (167 words)

	BBC News \| Sci/Tech \| The view from Vulcan (Site not responding. Last check: 2007-11-04)
		Imagine visiting the star called 40 Eridani in the constellation of Eridanus, the river.
		The brilliant orange 40 Eri would not be alone in Vulcan's sky.
		Vulcan's main star has two stellar companions, a white and a red dwarf, that would be brilliant in Vulcan's sky as points silver white and brilliant blood red.
	news.bbc.co.uk /1/hi/sci/tech/416227.stm (414 words)

	Image template
		From the orbit, the white dwarf, 40 Eridani B, has a mass a bit over half that of the Sun, the red dwarf (40 Eridani C) much smaller, 0.16 solar.
		Curiously the actual luminosities of the two stars are almost the same, as the cool red dwarf (3300 Kelvin) produces most of its radiation in the invisible infrared, making it seem dimmer than it actually is. The white dwarf is much hotter (14,000 Kelvin, causing it to radiate much of its energy in the ultraviolet).
		As fascinating as the white dwarf may be, the dim M dwarf is not without its own charm.
	myweb.cableone.net /hurricane4/O2Eri_010305.html (592 words)

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