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	Ursa Minor -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-12)
		Ursa Minor is a (A configuration of stars as seen from the earth) constellation in the northern sky, the name of which means (The slender part of the back) Small (Massive plantigrade carnivorous or omnivorous mammals with long shaggy coats and strong claws) Bear in (Any dialect of the language of ancient Rome) Latin.
		Ursa Minor contains an ((astronomy) a cluster of stars (or a small constellation)) asterism colloquially known as the "Little Dipper" because its seven brightest ((astronomy) a celestial body of hot gases that radiates energy derived from thermonuclear reactions in the interior) stars seem to form a ladle, or dipper shape.
		Ursa Minor Dwarf galaxy, a (A person who is abnormally small) dwarf ((astronomy) a collection of star systems; any of the billions of systems each having many stars and nebulae and dust) galaxy.
	www.absoluteastronomy.com /encyclopedia/u/ur/ursa_minor.htm (633 words)

	Ursa Minor - Wikipedia, the free encyclopedia
		Ursa Minor is a constellation in the northern sky, the name of which means Small Bear in Latin.
		In early greek mythology, the seven stars in Ursa Minor were considered to be the Hesperides, daughters of Atlas.
		Boötes, Ursa Major, and Draco) it may have formed the origin of the myth of the apples of the Hesperides, which forms part of The Twelve Labours of Herakles.
	en.wikipedia.org /wiki/Ursa_Minor (589 words)

	Size isn't everything: Unlocking the dark secrets of dwarf galaxies (Forwarded) (Site not responding. Last check: 2007-10-12)
		Dwarf spheroidal galaxies are widely believed to be the building blocks from which galaxies were formed.
		Observations of the Ursa Minor dwarf spheroidal galaxy presented a new complication in the study.
		Several theories are being investigated including dark matter from edge of Ursa Minor has been snatched away from the galaxy by its massive parent, the Milky Way, allowing some stars to wander gently away from their parent.
	www.science-one.com /new-3493523-4253.html (697 words)

	[No title] (Site not responding. Last check: 2007-10-12)
		Ursa Minor is therefore an extreme-age galaxy, unlike superficially similar objects such as the Carina dwarf.
		Indeed, Ursa Minor may be the only outer-halo spheroidal whose stellar content lives up to the classical ideals of a Population II system.
		The ratio of blue stragglers to anomalous Cepheids in Ursa Minor is estimated to be ~100, a number that may provide an important constraint on binary models for the origin of these stars.
	cdsweb.u-strasbg.fr /ftp/cats/J/AJ/90/2221/ReadMe (337 words)

	[No title]
		(Armandroff+ 1995) ================================================================================ The Mass-To-Light Ratios of the Draco and Ursa Minor Dwarf Spheroidal Galaxies.
		Ursa Minor velocities reveals inconsistencies which we ascribe to underestimated errors in the Hargreaves et al.
		Ursa Minor shows apparent rotation about a position angle of 75 deg with an amplitude of about 3 km/s; the morphological major axis is 53 +/- 5 deg.
	www.journals.uchicago.edu /AAS/cdrom/volume5/volume5/aj/v110/p2131/table.doc (514 words)

	Ursa Minor -- Britannica Student Encyclopedia
		The intrinsically faintest are the extreme dwarf elliptical galaxies, such as the Ursa Minor dwarf, which has a luminosity of approximately 100,000 suns.
		Ursa Minor is surrounded on three sides by the coils of Draco, the...
		Leo Minor is one of the smallest constellations and is insignificant both astronomically and historically.
	www.britannica.com /ebi/article-9313957 (782 words)

	Small galaxy springs 'dark matter' surprises
		Some of the dwarf spheroidals - those in our 'Local Group' of galaxies - are close enough for astronomers to be able to trace the movements of their individual stars.
		In one dwarf spheroidal, found in the constellation Ursa Minor, the team found a clump of slow-moving stars near the galaxy's centre.
		In the Ursa Minor dwarf spheroidal, however, the stars in its very outermost parts are not moving quickly.
	www.eurekalert.org /pub_releases/2003-07/ca-sgs072403.php (743 words)

	The mass-to-light ratios of the Draco and Ursa Minor dwarf spheroidal galaxies. I. Radial velocities from multifiber ... (Site not responding. Last check: 2007-10-12)
		The mass-to-light ratios of the Draco and Ursa Minor dwarf spheroidal galaxies.
		We have measured 206 radial velocities for 94 probable members in the Ursa Minor dwarf spheroidal galaxy and 167 velocities for 91 probable members in the Draco dwarf spheroidal galaxy.
		Ursa Minor shows apparent rotation about a position angle of 75deg with an amplitude of about 3km/s; the morphological major axis is 53+/-5deg.
	www.cs.wisc.edu /niagara/data/nasa/AJ_110_2131.xml (1329 words)

	Ursa minor - Ursa Minor (abbr. UMi, gen. Ursae Minoris) (Site not responding. Last check: 2007-10-12)
		We compare the Ursa Minor CMD with the fiducial sequence of the ancient The excellent match between Ursa Minor and M92 confirms that the median stellar
		It is for this reason that Ursa Major and Ursa Minor are both circumpolar constellations, never dipping Ursa Minor is better known as the Little Dipper.
		Ursa Minor is a self-organizing arts and media organization designed to accellerate and support improving cooperation among individuals and organizations
	www.webdatasource.com /?q=ursa-minor (201 words)

	Draco Dwarf
		A dwarf elliptical galaxy that orbits the Milky Way at a distance of about 250,000 light-years from the galactic center.
		The Draco dwarf is the least luminous galaxy known, with an absolute magnitude of -8.6 and a diameter of only about 3,500 light-years.
		It lies in the constellation Draco and was discovered in 1954 at the same time as another Milky Way satellite, the Ursa Minor Dwarf.
	www.daviddarling.info /encyclopedia/D/Draco_Dwarf.html (143 words)

	Ursa Minor Dwarf (Site not responding. Last check: 2007-10-12)
		The Ursa Minor Dwarf was discovered by A.G. Wilson of Lowell Observatory, who had already discovered dwarf galaxy Leo I some years earlier, on photographic plates from the National Geographic Society - Palomar Observatory Sky Survey (POSS) in the early 1954, together with the Draco Dwarf (Wilson 1955).
		Ursa Minor Dwarf is one of the small satellite galaxies of our Milky Way Galaxy, at a distance of about 240,000 light years.
		It is a dwarf elliptical or dwarf spheroidal galaxy, consisting of an old stellar population only and no significant amount of interstellar matter.
	www.seds.org /~spider/spider/LG/umi_dw.html (127 words)

	Local Group
		The Milky Way's satellites include: the Large Magellanic Cloud, the Small Magellanic Cloud, the Sagittarius Dwarf Elliptical, the Ursa Minor Dwarf, the Draco Dwarf, the Carina Dwarf, the Sextans Dwarf, the Sculptor Dwarf, the Fornax Dwarf, Leo I, and Leo II.
		The third-largest galaxy, the Triangulum Galaxy (M33), may or may not be an outlying gravitationally-bound companion of M31, but has itself probably the dwarf LGS 3 as a satellite.
		The other members of the Local Group, including the Antlia Dwarf and Wolf-Lundmark-Melotte Galaxy, fall outside the main subgroups and float alone in the gravitational seas between the giant group members.
	www.daviddarling.info /encyclopedia/L/LocalGroup.html (458 words)

	Ursa Minor Dwarf - Wikipedia, the free encyclopedia
		The Ursa Minor Dwarf dwarf galaxy was discovered by A.G. Wilson of the Lowell Observatory in 1954.
		It is part of the Ursa Minor constellation, and a satellite galaxy to the Milky Way.
		This page was last modified 19:39, 27 September 2005.
	en.wikipedia.org /wiki/Ursa_Minor_Dwarf (67 words)

	Local Group - Open Encyclopedia (Site not responding. Last check: 2007-10-12)
		The Milky Way's satellite system consists of Sag DEG, Large Magellanic Cloud, Small Magellanic Cloud, Canis Major, Ursa Minor, Draco, Carina, Sextans, Sculptor, Fornax, Leo I, Leo II and Tucana.
		Ursa Minor Dwarf - type dE4 in Ursa Minor
		Argo Dwarf - Irregular Galaxy (Irr) in Carina
	open-encyclopedia.com /Local_Group (658 words)

	[8.06] WFPC2 Observations of the Ursa Minor Dwarf Spheroidal Galaxy (Site not responding. Last check: 2007-10-12)
		The tightness in the RGB with no apparent secondary turnoff is consistent with a single burst of star formation for the Ursa Minor stellar population.
		We compare the Ursa Minor CMD with the fiducial sequence of the ancient metal-poor Galactic globular cluster M92.
		The excellent match between Ursa Minor and M92 confirms that the median stellar population of the Ursa Minor dwarf is metal poor ([Fe/H]\,\approx -2.2) and is of similar age to M92.
	www.aas.org /publications/baas/v30n4/aas193/350.htm (187 words)

	The Absolute Proper Motion of the Ursa Minor Dwarf Spheroidal Galaxy (Site not responding. Last check: 2007-10-12)
		We have measured an absolute proper motion of the Ursa Minor dwarf spheroidal galaxy with uncertainties of \le0.01 arcsec/century in each coordinate.
		Ursa Minor is a companion to the Milky Way at a distance roughly 63 kpc from us.
		The space velocity of Ursa Minor, after correction for the solar peculiar velocity and the orbital motion of the LSR, is an unprecedented 7\sigma (or better) detection, and is in a dynamically interesting direction.
	www.aas.org /publications/baas/v28n2/aas188/abs/S009001.html (199 words)

	Research Experience
		Tidal Dwarf Galaxy Formation in Hickson Compact Groups: As a postdoc at Penn State, I studied Compact Groups in collaboration with Jane Charlton and Sally Hunsberger.
		We have been testing the hypothesis that dwarf galaxies may form in the multiple interactions that occur in compact groups by observing the candidate dwarf galaxies with the Hubble Space Telescope and the Hobby-Eberly Telescope.
		Recent results on the dwarf galaxies in Stephan's Quintet were presented at the January 2003 AAS meeting.
	www.astro.psu.edu /users/cpalma/halo.html (940 words)

	Unlocking the dark secrets of dwarf galaxies (Site not responding. Last check: 2007-10-12)
		Starbursts in dwarf galaxies: A multiwavelength case study of NGC 625 : (Dissertation)
		The calcium II triplet as a [calcium/hydrogen] indicator and the Leo I and Leo II dwarf galaxies : (Dissertation)
		The Sculptor dwarf spheroidal galaxy (Publications of the David Dunlap Observatory, University of Toronto)
	www.brightsurf.com /news/july_03/EDU_news_072303_f.php (773 words)

	Local Group of Galaxies
		The Sculptor Dwarf System is a dwarf galaxy discovered by Harlow Shapley on a photograph taken in 1937 with the 24 inch Bruce refractor in South Africa.
		The Sculptor Dwarf Galaxy is about 300,000 light years away, about half again the distance to the Magellanic Clouds.
		Ursa Minor Dwarf (UGC 9749) Very faint, large, elongated 1.5 X 1 at 60X in a 38mm Giant Erfle eyepiece that gives a one degree field in the 13".
	www.saguaroastro.org /content/print-friendly/print-Local-Group-of-Galaxies.htm (789 words)

	Citebase - The Nature of the Red Giant Branches in the Ursa Minor and Draco Dwarf Spheroidal Galaxies (Site not responding. Last check: 2007-10-12)
		Authors: Shetrone, M. Cote, P. Stetson, P. Spectra for stars located redward of the fiducial red giant branches of the Ursa Minor and Draco dwarf spheroidal galaxies have been obtained with the Hobby-Eberly telescope and the Marcario Low Resolution Spectrometer.
		We have studied the stellar population and internal structure of the core of the Ursa Minor dwarf spheroidal galaxy, using a sample of stars selected to be members based on their proper motions.
		In agreement with previous studies, we find Ursa Minor to be dominated by an old, metal-poor stellar po...
	www.citebase.org /cgi-bin/citations?id=oai:arXiv.org:astro-ph/0105391 (1015 words)

	Mighell & Burke (1998, AJ): WFPC2 OBSERVATIONS OF THE URSA MINOR dSPH GALAXY
		We compare the fiducial sequence of Ursa Minor with the fiducial sequence of the Galactic globular cluster M92 (NGC 6341).
		The excellent match between Ursa Minor and M92 confirms that the median stellar population of the UMi dSph galaxy is metal poor ([Fe/H]_UMi ~ [Fe/H]_M92 ~ -2.2 dex) and ancient (age_UMi ~ age_M92 ~ 14 Gyr).
		A new estimate of the distance modulus of Ursa Minor, (m-M)_0 = 19.18 +- 0.12 mag, has been derived based on fiducial-sequence fitting with M92 and the adoption of the apparent V distance modulus for M92 of (m-M)_V = 14.67 +- 0.08 mag (Pont et al.
	www.noao.edu /staff/mighell/umi (323 words)

	Middle East Open Encyclopedia: Milky Way (Site not responding. Last check: 2007-10-12)
		The smallest, Carina Dwarf, Draco Dwarf, and Leo II Dwarf are only 500 light years in diameter.
		The other dwarfs orbiting our galaxy are the Small Magellanic Cloud; Canis Major Dwarf, the closest; Sagittarius Dwarf Elliptical Galaxy, previously thought to be the closest; Ursa Minor Dwarf; Sculptor Dwarf, Sextans Dwarf, Fornax Dwarf, and Leo I Dwarf.
		In the general sense, the absolute speed of any object through space is not a meaningful question according to Einstein's Special Theory of Relativity, which declares that there is no "preferred" inertial frame of reference in space to compare the galaxy's motion with.
	www.baghdadmuseum.org /ref/index.php?title=Milky_Way (1864 words)

	Universe Today - Unlocking the Secrets of Dwarf Galaxies
		The team analyzed one such galaxy and found that the stars in the outer edges were moving so quickly that the galaxy could only stay together if it had 100 times more dark matter than the mass of the stars alone.
		New research on dwarf spheroidal galaxies by a team of astronomers at the University of Cambridge promises a real astronomical first: detection, for the first time, of the true outer limits of a galaxy.
		The team is presenting today (23 July 2003) at the 25th General Assembly of the International Astronomical Union (IAUXXV) in Sydney, Australia.
	www.universetoday.com /am/publish/dwarf_galaxy_secrets.html (724 words)

	Ursa Minor Dwarf concept from the Astronomy knowledge base (Site not responding. Last check: 2007-10-12)
		Ursa Minor Dwarf concept from the Astronomy knowledge base
		Next dwarf elliptical satellite galaxy: Draco galaxy Up: dwarf elliptical satellite galaxy Previous dwarf elliptical satellite galaxy: Sculptor Dwarf
		is an instance of dwarf elliptical satellite galaxy
	www.csi.uottawa.ca:4321 /astronomy/UrsaMinorDwarf.html (96 words)

	List of satellites of the Milky Way - Simple English Wikipedia
		Canis Major Dwarf Galaxy - 25,000 ly (satellite of Milky Way)
		Ursa Minor Dwarf - 205,500 ly (satellite of Milky Way)
		Draco Dwarf - 248,000 ly (satellite of Milky Way)
	simple.wikipedia.org /wiki/List_of_satellites_of_the_Milky_Way (178 words)

	NOAO Press Release 05-01: Flickering Red Giants a Surprising Find
		A significant number of red giant stars whose output varies on timescales as short as 10 minutes has been found in the nearby Ursa Minor dwarf galaxy by an astronomer at the National Optical Astronomy Observatory (NOAO) and a summer undergraduate student.
		This discovery was made by carefully comparing individual frames of observations of the Ursa Minor dwarf galaxy obtained with the Hubble Space Telescope’s Wide Field and Planetary Camera 2 instrument in 1995 and 1999.
		Ursa Minor is a dwarf spheroidal galaxy located about 220,000 light-years from Earth in the direction of the constellation Ursa Minor (The Little Bear).
	www.noao.edu /outreach/press/pr05/pr0501.html (738 words)

	Citebase - Analysis of a Proper-Motion Selected Sample of Stars in the Ursa Minor Dwarf Spheroidal Galaxy (Site not responding. Last check: 2007-10-12)
		Authors: Eskridge, Paul B. Schweitzer, Andrea E. We have studied the stellar population and internal structure of the core of the Ursa Minor dwarf spheroidal galaxy, using a sample of stars selected to be members based on their proper motions.
		In agreement with previous studies, we find Ursa Minor to be dominated by an old, metal-poor stellar population.
		We recover the internal substructure in Ursa Minor that has been noted by several authors in the last 15 years.
	citebase.eprints.org /cgi-bin/citations?id=oai:arXiv.org:astro-ph/0108453 (778 words)

	University of Chicago Department of Astronomy & Astrophysics: Academics & Outreach (Site not responding. Last check: 2007-10-12)
		In addition to deriving membership for stars in these systems (many of which are very sparse) we are deriving tangential velocities using galaxies and QSOs to set the zero-point of the proper motions, thus allowing derivation of the orbits of the distant satellites and better constraining estimates of the mass of the Milky Way.
		Ursa Minor is moving along the Magellanic Stream in the same sense as the Large Magellanic Cloud.
		In the course of the Ursa Minor study a systematic error was found infecting measurements made with the PDS microdensitometer at MADRAF which has been used for nearly all of the Yerkes astrometric program's work in the past 15 years.
	astro.uchicago.edu /research/faculty97.html (10439 words)

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