Binary (astronomy)

Binary (astronomy) - Factbites
Where results make sense
About us | Why use us? | Reviews | PR | Contact us

Topic: Binary (astronomy)

Note: these results are not from the primary (high quality) database.

In the News (Thu 24 Dec 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	AllRefer.com - binary star (Astronomy, General) - Encyclopedia
		The orbit period decreases as the system loses energy in the form of gravitational waves; used as a clock to measure the effect of the curvature of space-time on the binary's orbit, such a system confirms Einstein's theory of general relativity.
		There are binary systems in which one member is a pulsar: PSR 1913+16, for example, has an orbital period of 7 hr 45 min; in this case the other star is also a neutron star.
		binary star or binary system, pair of stars that are held together by their mutual gravitational attraction and revolve about their common center of mass.
	reference.allrefer.com /encyclopedia/B/binaryst.html (566 words)

	Binary Stars
		The binary nature of the system is deduced from the periodic doppler shifts of the wavelengths of lines seen in the spectrum, as the stars move through their orbits around the center of mass.
		Eclipsing binaries are systems in which the orbital plane is oriented exactly edgewise to the plane of the sky so that the one star passes directly in front of the other, blocking out its light during the eclipse.
		Spectroscopic binaries are systems in which the stars are so close together that they appear as a single star even in a telescope.
	astrosun2.astro.cornell.edu /academics/courses/astro201/binstar.htm (307 words)

	Binary numeral system
		The binary or base-two numeral system is a system for representing numbers in which a radix of two is used; that is, each digit in a binary numeral may have either of two different values.
		The first known description of a binary numeral system was made by Pingala in his Chhandah-shastra, placed variously in the 5th century BC or the 2nd century BC.
		A binary number can be represented by any sequence of bits (binary digits), which in turn may be represented by any mechanism capable of being in two mutually exclusive states.
	www.sciencedaily.com /encyclopedia/binary_numeral_system (2275 words)

	Binary system (astronomy) - Wikipedia, the free encyclopedia
		A binary system is an astronomy term referring to two objects in space, usually stars, which are so close that their gravitational forces attract one another into a mutual orbit.
		See Binary star for the common case of a binary system composed of two stars.
		A multiple system is like a binary system but consists of three or more objects.
	en.wikipedia.org /wiki/Binary_system_(astronomy) (105 words)

	Solar system - Open Encyclopedia
		Planetary systems are generally believed to form as part of the same process which results in star formation; although, some argue that systems are formed by some kind of accidental "stellar near-collision".
		Small quantities of dust are present throughout the solar system and are responsible for the phenomenon of zodiacal light.
		The solar system is part of the Milky Way galaxy, a spiral galaxy with a diameter of about 100,000 light years containing approximately 200 billion stars, of which our Sun is fairly typical.
	open-encyclopedia.com /Solar_System (1464 words)

	Astronomy
		Astronomy is the oldest science, dating back thousands of years to when primitive people noticed objects in the sky overhead and watched the way the objects moved.
		Astronomy, study of the universe and the celestial bodies, gas, and dust within it.
		Astronomy has a long tradition of practical results, such as our current understanding of the stars, day and night, the seasons, and the phases of the Moon.
	www.geocities.com /gargakash/astronomy.htm (6999 words)

	Binary system - Wikipedia, the free encyclopedia
		binary system (astronomy), a system of two celestial bodies on a mutual orbit
		in chemistry, a chemical system involving two steps/processes or two substances
		This is a disambiguation page — a list of articles associated with the same title.
	en.wikipedia.org /wiki/Binary_system (88 words)

	Binary Systems
		If they are a binary system, we would expect the "system" to have the same velocity through space and that orbital motion would be superimposed on this.
		If we assume that all binary systems are oriented randomly in the galaxy then only a small fraction will have the correct alignment to produce eclipses when viewed from the Earth.
		To check if the two stars are members of the same binary system, it is usual to examine the distance to each star and its velocity (speed and direction) through space.
	www.uclan.ac.uk /facs/science/physastr/x99/PAM98/UCert/Ch07/7_6bin~1.htm (772 words)

	Astronomy News & Links: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
		Systems in which the orbital period is very short (less than 1 hour) are referred to as AM Canis Venaticorum (AM CVn) systems, after first known binary star of this rare class.
		The record-holding binary stellar system bears the prosaic name RX J0806.3+1527 and it is located north of the celestial equator in the constellation Cancer (The Crab).
		However when a solar-like star is a member of a binary system, the evolution of its component stars is more complicated.
	astrophys.org /news/2002/020315_eso_fastestbinary.html (1263 words)

	Orbit around the binary stars - Bad Astronomy and Universe Today Forum
		If a pair of stars in a binary are much closer than the distance between Sun and Jupiter then there are probably no planets possible; the Hills radius is the limit of stable orbits in such a system, and is determined by the relative masses of the two stars...
		Very close binary stars are quite common; these are detected using doppler shifts in the spectrographs of the two stars, and are called spectrographic binaries.
		Many of these spectrographic binaries are so close they are nearly touching; if you looked at them in the sky, they would overlap most of the time; such a pair could have a system of planets orbiting both stars centre of gravity as if they were a single star.
	www.bautforum.com /showthread.php?p=242982#post242982 (887 words)

	Zoom Astronomy Glossary: A
		Astronomy is the scientific study of space, including the planets, stars, galaxies, comets, and nebulae.
		Astrophysics is a branch of astronomy that studies the physical properties of celestial bodies and other matter and energy in space.
		This system of rating the brightness of celestial objects was developed by the Greek astronomer Hipparchus in 120 B.C. Apparent motion is the observed motion of astronomical obejcts from Earth.
	www.enchantedlearning.com /subjects/astronomy/glossary (4909 words)

	SPACE.com -- Supernova Nearly Split Binary Star System
		X-ray binary systems consist of a star that is losing mass to its partner, which is the remnant of a supernova, either a neutron star or a black hole.
		McSwain's observations confirm that LS 5039 is a close X-ray binary system: one extremely bright, massive star and a companion that is nearly invisible to human eyes, which marks the remains of the stellar explosion.
		LS 5039 was among a number of possible new massive X-ray binary systems found with the ROSAT X-ray satellite by astronomers from France, Germany, and Brazil.
	www.space.com /scienceastronomy/astronomy/xray_binary_010828.html (920 words)

	Binary star breaks speed record (March 2002) - News - PhysicsWeb
		Binary star system are known to emit X-rays, and this prompted Israel and co-workers to study the system – known as RX J0806.3+1527 – more closely, using the Very Large Telescope in Chile and the Italian Telescopio Nazionale Galileo in the Canary Islands.
		High-resolution studies of the binary system by Israel’s group showed that the stars are only 80 000 kilometres apart – around a fifth the distance from Earth to the Moon – which means that they must be travelling at around 1000 kilometres per second.
		Israel and colleagues think that the stars in binary system J0806.3+1527 could be moving fast enough to generate gravitational waves – ripples in the fabric of space-time that are predicted to arise when a massive object moves through space.
	physicsweb.org /articles/news/6/3/16/1 (448 words)

	SPACE-TALK - Binary System
		I have been researching a fictional binary system and found out that if another star about the size of the Sun were only 3.371 AU away, thats about three times as far as the Earth is from the sun.
		Some of the extra-solar planets discovered have been within a binary system.
		Yes, in theory, a binary system could suport life.
	www.space-talk.com /ForumE/showthread.php3?threadid=347 (875 words)

	Imagine the Universe! Dictionary A-D
		An X-ray binary is a special case where one of the stars is a collapsed object such as a white dwarf, neutron star, or black hole, and the separation between the stars is small enough so that matter is transferred from the normal star to the compact star star, producing X-rays in the process.
		Binary star systems with one white dwarf star and one normal star, in close orbit about each other.
		The part of astronomy that deals principally with the physics of the universe, including luminosity, density, temperature, and the chemical composition of stars, galaxies, and the interstellar medium.
	imagine.gsfc.nasa.gov /docs/dict_ad.html (2472 words)

	binary star concept from the Astronomy knowledge base
		spectroscopic binary (6 kinds, 49 facts) - Star whose binary nature can be detected from the periodic Doppler shifts of their spectra, owing to their varying velocities in the line of sight.
		At least half of the stars in the solar neighborhood are members of binary (or multiple) systems.
		17 Leporis (6 facts) - A close binary system (A0 V, M1 III) with a shell-like spectrum indicating that mass transfer may be occurring from the late-type companion onto the A0 primary.
	www.site.uottawa.ca:4321 /astronomy/binarystar.html (853 words)

	Binary & Variable Star Links
		Binary Star Motions provides a concise explanation, with diagrams, of how Kepler's Laws may be used to determine the mass of a binary system.
		Binary Star Simulation is an excellent Java applet from Cornell that allows you to alter the parameters for a binary system.
		The lives of binary stars is a small set of online slides with animations discussing the types of binaries, some history, evolution and importance of binaries in point form.
	outreach.atnf.csiro.au /education/senior/astrophysics/binary_variable_links.html (1030 words)

	sciforums.com - Binary system questions
		I'm working on a hypothetical binary system obviously, but most of whatl I find is data on existing binaries and their likelihood of having habitable stars (not that great, btw).
		The fundamental problem is that binary star systems will generally either eat planets, or kick them out of the system almost immediately.
		sciforums.com : Science : Astronomy, Exobiology, and Cosmology
	www.sciforums.com /showthread.php?t=14630 (712 words)

	BINARY SYSTEM - LoveToKnow Article on BINARY SYSTEM
		, in astronomy, a system composed of two stars revolving around each other under the influence of their mutual attraction.
		A distinction was formerly made between double stars of which the components were in revolution around each other, and those in which no relative motion was observed; but it is now considered that all double stars must really be binary systems.
		To properly cite this BINARY SYSTEM article in your work, copy the complete reference below:
	www.1911encyclopedia.org /B/BI/BINARY_SYSTEM.htm (84 words)

	37_1.html
		A high-luminosity eclipsing binary system with a rapidly varying period in the galaxy M 33
		An eclipsing binary system with an orbital period of 33
		Fundamental astronomy and astrophysics; instrumentation, techniques, and astronomical observations : Astronomical observations : [Visible (390
	www.aip.org /anjtest/stix/ALETEO_23_1_37_1/37_1.html (200 words)

	BINARY SYSTEM - Online Information article about BINARY SYSTEM
		astronomy, a system composed of two stars revolving around each other under the See also:
		motion was observed; but it is now considered that all double stars must really be binary systems.
		Highlight the code below, right click, and select "copy." Then paste it into your website, email, or other HTML.
	encyclopedia.jrank.org /BER_BLA/BINARY_SYSTEM.html (158 words)

	The Base-Two, or Binary, System (from numeration systems and numbers) -- Britannica Student Encyclopedia
		The importance of the binary system to information theory and computer technology derives mainly from the compact and reliable manner in which data can be represented in electromechanical devices with two states—such as “on-off,” “open-closed,” or “go-no...
		The endocrine system is a complex system of glands that secrete hormones throughout the body.
		The structure of the school system normally reflects the structure of government itself.
	www.britannica.com /ebi/article-205797?tocId=205797&ct= (819 words)

	Gliese 372 : A Nearby Binary Star System
		Also, Gliese 372 is one of only nine known M dwarf double-lined spectroscopic binary systems and it is the only one which does not have unusually high amounts of magnetic activity.
		So the system is still within the 25 parsec limit of the Gliese catalogue, and my discovery adds one more known star to that catalogue.
		But if it were eclipsing, it would be the only system of its kind, offering information on temperature, mass and radius, and it would be an excellent testing ground for theories of M dwarfs.
	astro.sci.uop.edu /~harlow/research/gl372.html (718 words)

	HubbleSite - Hubble Probes the Workings of a Stellar Hydrogen Bomb - 5/22/1995
		Each dwarf - dense, burned-out stars that have collapsed to the size of Earth - is in a compact binary system, called a cataclysmic variable, where its companion is a normal star similar to, but smaller than the Sun.
		The stars are so close together that the entire binary system would fit inside the Sun.
		Peering into the heart of two recently exploded double-star systems, the Hubble telescope has surprised researchers by finding that the white dwarf stars at the center of the fireworks are cooler than expected and spin more slowly than previously thought.
	hubblesite.org /newscenter/newsdesk/archive/releases/1995/23 (193 words)

	APOD Index - Stars: Binary Stars
		In a binary system, the higher mass star will evolve faster and will eventually become a compact object - either a white dwarf star, a neutron star, or black hole.
		binary star system, each star of the pair follows an elliptical orbital path.
		Mizar is the middle star in the handle of the Big Dipper and at a distance of 88 light years, was the first binary star system
	www.star.ucl.ac.uk /~apod/apod/binary_stars.html (524 words)

	Sirius 2
		A binary, the system is the title member of the Sirius stellar moving group (also know as the Sirius Super Clusteror Ursa Major star stream), which include all five stars of the Great Dipper as well as Gemma and are mostly around 490 million years old and all moving towards the galactic center.
		Astronomy Picture of the Day actually depicts Sirius B, the brighter x-ray emitter.
		Dust has been detected in this binary system (Backman et al, 1986; and Kuchner and Brown, 2000 -- in postscript).
	www.solstation.com /stars/sirius2.htm (1610 words)

	Astronomy Notes
		I define angular momentum and give several examples of angular momentum in astronomy: Kepler's second law of orbital motion, Earth-Moon system, rapidly spinning neutron stars, accretion disk in a binary system, and a collapsing galactic cloud.
		Astronomy constants, physical constants, planets (orbital properties, physical characteristics, atmospheres), 100 nearest stars, and 100 brightest stars as seen from the Earth.
		Astronomy as a Science and a Sense of Scale.
	www.astronomynotes.com (1102 words)

	Binary system (astronomy) -- Facts, Info, and Encyclopedia article
		Binary system (astronomy) -- Facts, Info, and Encyclopedia article
		See (A system of two stars that revolve around each other under their mutual gravitation) Binary star for the common case of a binary system composed of two stars.
	www.absoluteastronomy.com /encyclopedia/b/bi/binary_system_(astronomy).htm (90 words)

	Discussion: Binary Pulsar System Confirmed - Bad Astronomy and Universe Today Forum
		So it is a mystery when the system located in 2003 again is cited "the first known example of a binary pulsar system" now appearing in Science as nr 6 of this year's top list of scientific achievements.
		SUMMARY: Researchers located a binary system in 2003, believed to be a spinning pulsar and a neutron star.
		In this system, one pulsar's beam is illuminating the other pulsar, so it allows astronomers to accurately measure the interactions between the objects.
	www.bautforum.com /showthread.php?t=23532 (305 words)

Try your search on: Qwika (all wikis)

Topic: Binary (astronomy)

Ads by Google

Related Topics

In the News (Thu 24 Dec 09)