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	Messier Object 81
		M81 is one of the easiest and most rewarding galaxies to observe for the amateur astronomer on the northern hemisphere, because with its total visual brightness of about 6.8 magnitudes it can be found with small instruments.
		The pronounced grand-design spiral galaxy M81 forms a most conspicuous physical pair with its neighbor, M82, and is the brightest and probably dominant galaxy of a nearby group called M81 group.
		M81 is the first of the four objects originally discovered by Johann Elert Bode, who found it, together with its neighbor M82, on December 31, 1774.
	www.seds.org /messier/m/m081.html (759 words)

	M81
		M81, one of the brightest galaxies in our skies, was discovered by Johann Bode on New Year's Eve 1774.
		M81 is bright enough that you may be tempted to skimp on exposure time.
		As with all galaxies, the challenge with M81 is to brighten the delicate arms without overexposing the core.
	www.neurohack.com /astrotourist/M81.html (404 words)

	APOD: 2006 July 7 - Bright Galaxy M81 (Site not responding. Last check: 2007-10-16)
		One of the brightest galaxies in planet Earth's sky, M81 is also home to the second brightest supernova seen in modern times.
		The errant dust lane may be the lingering result of a close encounter between M81 and its smaller companion galaxy, M82.
		Scrutiny of variable stars in M81 (aka NGC 3031) has yielded one of the best determined distances for an external galaxy -- 11.8 million light-years.
	antwrp.gsfc.nasa.gov /apod/ap060707.html (173 words)

	m81
		M81 is a spiral galaxy with the morphological classification of SA(s)ab I-II.
		M81 is located in the Messier 81 Galaxy group, the center of which is located about 10 million light years away.
		M81 was discovered by J.E. Bode of Berlin in December 1774.
	www.astrophoto.net /m81.html (258 words)

	M81 (Site not responding. Last check: 2007-10-16)
		M81 is one of the easiest and most rewarding galaxies to observe for the amateur astronomer on the northern hemisphere, because with its total visual brightness of about 6.8 magnitudes it can be found with small instruments.
		The remnant of this supernova was imaged in the radio light at 3.6 cm wavelength from roughly six to 18 months after the explosion, with the VLA radio telescope of the NRAO.
		Investigations performed in 1994 have indicated that M81 has probably only little dark matter, as its rotation curve was found to fall off in the outer regions; this is in contrast to many galaxies, including our own Milky Way, for which the rotation curve increases outward.
	www.intercom.net /user/shaffer/messier/m81.html (538 words)

	M81 / M82
		M81, the large type Sb spiral galaxy near the bottom, and M82, the irregular galaxy on top, are at the center of a small group of galaxies which, in intergalactic terms, is located in our neighborhood, about 7 million light years distant.
		M81 is one of the brightest spiral galaxies to be seen in a telescope, and is easily visible in binoculars.
		M81 was originally discovered by Johann Bode, who found it, together with its neighbor M82, in 1774.
	astro.nightsky.at /Photo/Gal/M81_M82_APO.html (597 words)

	Circular Polarization in M81
		We report the detection of circular polarization in the compact radio jet of the nearby spiral galaxy M81 (M81*).
		This further supports the idea that M81* is a scaled-up version of Sgr A* and suggests that the polarization properties are intrinsic to the two sources and are not caused by a foreground screen in the Galaxy.
		M81* is unpolarized in the linear sense at a frequency as high as 86 GHz and shows variable circular polarization at a frequency as high as 15 GHz.
	www.mpifr-bonn.mpg.de /staff/abrunthaler/m81.shtml (385 words)

	Sea and Sky: Messier Objects M81 - M90
		M81 is the brightest member of a group of galaxies called the M81 group.
		M81 is located approximately 12 million light years from Earth.
		M82 is another member of the M81 group of galaxies found in the region of Ursa Major.
	www.seasky.org /astronomy/astronomy_messier_81to90.html (1138 words)

	Messier 81 - Wikipedia, the free encyclopedia
		In 1993, a supernova (SN 1993J) of was observed in M81.
		M81 and M82 are the most prominent members of the M81 Group with M81 being about twice as massive as M82 which is estimated to be only 54%
		M81 has an apparent magnitude of +7.9, making it one of the brightest galaxies that can be seen from the Earth.
	en.wikipedia.org /wiki/M81 (313 words)

	ESA Portal - Focus On - Striking ultraviolet images from XMM-Newton: Extreme stellar activity and the supermassive ... (Site not responding. Last check: 2007-10-16)
		M81 can easily be observed with small amateur telescopes and has even been seen with the naked eye.
		It covers a region one quarter of a degree square and frames the M81 galaxy which is at least 22 000 light years across.
		M81 had already been observed by the Ultraviolet Imaging Telescope (UIT, which flew on the Shuttle in 1990), and by the Hubble Space Telescope.
	www.esa.int /esaCP/ESAGOTPZ9NC_FeatureWeek_0.html (973 words)

	[No title] (Site not responding. Last check: 2007-10-16)
		M81 is one of the classic grand design spiral arm galaxies.
		The image of the Supernova field in M81 was obtained in spring of 1993 at the Pine Mountain Observatory using a Lynxx PC CCD camera at the prime focus of the 32-inch telescope.
		The Ultraviolet Image of M81 comes from the Ultraviolet Imaging Telescope which is flown on the Shuttle.
	zebu.uoregon.edu /messier/m81.txt (191 words)

	M81
		which was disrupted by a close encounter with M81 tens of millions of years ago.
		M81 was originally discovered by Johann Elert Bode on December 31, 1774, who found it, together with its neighbor M82.
		This music was selected because M81 has the mass of our galaxy, but only 1/3 its size, making its density comparitively "thicker".
	www.stardoctor.org /M81.html (181 words)

	M81
		Messier object M81 is a galaxy which is located in the constellation Ursa Major.
		M81 is located at 09 55.6 right ascension and 69 04 declination.
		M81 has an NGC catalog number of NGC 3031.
	www.absoluteastronomy.com /messier_objects/m81.htm (76 words)

	Galaxy M81
		M81 is a grand-design spiral that is one of the great showpiece galaxies in the northern sky.
		In 1993, a star inside of M81 exploded in a supernova named SN 1993J.
		With a visual magnitude of 6.8, M81 is probably the farthest object that can be seen with the unaided eye at a distance of 12 million light years.
	www.astropix.com /HTML/C_SPRING/M81.HTM (290 words)

	GALEX - News
		The great spiral galaxy M81, similar in size and brightness to our Milky Way galaxy, is in the lower half of the image.
		GALEX reveals that star formation is occurring quite distant from the nucleus of M81 in the faint blue extensions to the brighter spiral arms.
		The nucleus, or center of M81, shines from the light of 10 billion year old stars near the end of their lives, which produce their energy by burning helium into carbon.
	www.galex.caltech.edu /anniversary.html (300 words)

	The M81 Group
		The M81 group is another famous group of galaxies mainly because it contains the famous M81/M82 pair of galaxies discovered in 1784.
		NGC 2403 (centre) is the second largest galaxy in the M81 group.
		This galaxy is one of the brightest galaxies in the sky, and although it is too faint to see with the naked eye, it is an easy galaxy to find with binoculars if you know where to look.
	www.atlasoftheuniverse.com /galgrps/m81.html (607 words)

	Pictures from Peach Mountain Observatory [M81-M82] (Site not responding. Last check: 2007-10-16)
		This is an image of the galaxies M81 and M82 I took last week (the week of May 22, 2005).
		M81 is the hazy oval thing below center, M82 is the diagonal streak in the upper right.
		M81 is an enormous spinning disk made up of billions and billions of stars (as Carl Sagan would say), inclined about 45 degrees to the earth (and far outside of our own galaxy, the milky way).
	www.umich.edu /~lowbrows/astrophotos/deep-sky/m81-82.html (251 words)

	SPACE.com -- Stunning View of Galaxy M81 Released
		The center of M81 has puzzled astronomers, who have debated whether the emissions are associated with a quasar's fl hole or a starburst region.
		A natural explanation for M81 is that it is a transition phase from being a quasar to being an ordinary galaxy, Breeveld said.
		The picture of M81, produced in April and released June 19, is expected to help researchers figure out what causes the central emissions.
	www.space.com /scienceastronomy/astronomy/newton_galaxy_010625.html (701 words)

	Observations of object "M81"
		M81 appeared only about half as large as the Andromeda Galaxy and it was noticeably fainter by at least a magnitude also.
		M81 and M82 was perfect to see by 50X and all the other objects by 100X.
		M81 was bright and obvious at 59x and was surrounded by a bright haze of its halo.
	www.lies.com /aaol/view_obs.cgi?obj=m81 (593 words)

	M81 Spitzer
		M81 Shortwave IR The magnificent spiral arms of the nearby galaxy Messier 81 are highlighted in this NASA Spitzer Space Telescope image.
		M81 is located at a distance of 12 million light-years from Earth.
		Because of its proximity, M81 provides astronomers with an enticing opportunity to study the anatomy of a spiral galaxy in detail.
	www.skyimagelab.com /m81-spitzer.html (470 words)

	Striking ultraviolet images from XMM-Newton: Extreme stellar activity and the supermassive black hole in M81
		It is one of the most luminous galaxies in the Northern Hemisphere and forms a most conspicuous pair with its next-door neighbor M82.
		The image taken by the Optical Monitor is formed from three 1000 second exposures taken with different ultraviolet filters, centered on approximately 2000, 2300 and 2800 angstroms respectively.
		They are particularly visible at the 'root' (towards the center of the galaxy), and along the initial lengths of each of the galaxy's two main spiral arms.
	heasarc.gsfc.nasa.gov /docs/xmm_lc/news/archive/2001/06_19_01.html (943 words)

	M81 - BenQ Mobile Press Portal (Site not responding. Last check: 2007-10-16)
		Cool, stylish and robust: the BenQ-Siemens M81 is the ideal mobile companion for action lovers with a sporty, trend-oriented lifestyle.
		With its cool street style looks the robust BenQ-Siemens M81 easily tackles all challenges of modern life: Built-in rubber elements ensure ultimate protection from shocks, a revolving cover protects the lens of the integrated 1.3 megapixel camera from dust and splash water.
		The BenQ-Siemens M81 is the ideal mobile companion for action lovers with a sporty, trend-oriented lifestyle.
	www.benqmobile.com /cds/frontdoor/0,2241,hq_en_0_159058_rArNrNrNrN_1:159058,00.html (328 words)

	M81 and M82
		M81 (the larger galaxy on the right) is a grand-design spiral galaxy that was discovered by Johann Bode in 1774.
		M81 forms a galactic pair with M82 (on the left), located only 150,000 light years apart, and the two galaxies have influenced each other through a close encounter occurring tens of millions of years ago.
		M82 (the smaller galaxy on the left) is a companion to M81 and was also discovered by Johann Bode in 1774.
	www.starrywonders.com /m8182.html (349 words)

	M81, M82 Galaxy Group
		M81, seen here at right, is a grand design spiral galaxy that forms a physical pair with irregular galaxy M82.
		This galaxy group, consisting of M81, M82, NGC 3077 and NGC 2976, is the nearest galaxy group to our own local group of galaxies.
		At 12 million light years distance, the nearby proximity of galaxies M81 and M82 makes them one of the most spectacular sights in the spring sky.
	www.astropix.com /HTML/C_SPRING/M81_M82.HTM (165 words)

	M81 Bode's Galaxy
		M81, also known as Bode's Galaxy, is located in the constellation of Ursa Major and is approximately 12 million light years distant.
		M81 is a large spiral galaxy and is the dominant galaxy of the M81 group.
		M82 is a smaller galaxy located only about 150 thousand light years from M81.
	www.waid-observatory.com /m081-2005-04-12.html (132 words)

	M81
		a most conspicuous physical pair with its neighbor, M82, and is the brightest and probably dominant galaxy of a nearby group called M81 group.
		M81 is the first of the four objects originally discovered by
		However, the total mass observed in luminous matter - stars and nebulae - is typically insufficient to explain this behaviour; thus it is assumed that there is a significant portion of mass in galaxies is non-luminous, dark matter (or at least low-luminosity matter).
	www.dsi-astronomie.de /M81.htm (715 words)

	DCRP Review: Toshiba PDR-M81
		The dimensions of the M81 are 4.2 x 2.8 x 1.8 inches (W x H x D) and it weighs 340 grams empty.
		One thing I don't like about the size/quality button on the M81 is that instead of scrolling through all the choices, it only has three that you set up in the menus.
		There are many quality settings on the M81, but as I mentioned, you have to choose 3 of them to assign to the quality button on the top of the camera.
	www.dcresource.com /reviews/toshiba/pdr_m81-review (2077 words)

	APOD: July 26, 1997 - M81 in True Color (Site not responding. Last check: 2007-10-16)
		Previously, M81 was shown in two colors only, but M81's real colors are just as dramatic.
		M81 is actually a dominant member of a group of galaxies which includes M82 and several other galaxies.
		Unlike our Local Group of galaxies, large galaxies in the M81 group are actually colliding.
	antwrp.gsfc.nasa.gov /apod/ap970726.html (159 words)

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