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Topic: Spiral Galaxy NGC 3628

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	Galaxies
		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.
		NGC 3628 is the faintest and most difficult in the group, just faint enough to have escaped Messier's small telescopes (although it may be that his later instruments might have shown it, if he had ever looked at this place under very good conditions).
		NGC 6946 is a rather nearby spiral galaxy, which at one time was suspected to be an outlying member of the Local Group (Hubble 1936).
	www.sitterson.net /fellows/GalaxyPics.htm (2964 words)

	NGC 3628, Spiral Galaxy (Site not responding. Last check: 2007-10-29)
		Spiral Galaxy NGC 3628 in Leo - aka Arp 317
		NGC 3362 is an edge-on spiral galaxy in the constellation Leo that is characterized by a fine narrow dust lane.
		This galaxy, also know as Arp 317, is a part of the Leo Triplet of galaxies.
	www.kopernik.org /images/archive/n3628.htm (137 words)

	More Deep Sky!
		NGC4214, irregular galaxy in the constellation Canes Venatici.
		NGC7339(left galaxy) and NGC7332 in the constellation Pegasus.
		NGC 1365 is one of the most luminous of all known barbed spirals with an absolute magnitude of -20.
	www.ghg.net /egrafton/universe.htm (2286 words)

	NGC 3628 (Site not responding. Last check: 2007-10-29)
		NGC 3628 is an elongated galaxy with a prominent dust lane cutting across the center of the galaxy.
		The galaxy shines at magnitude 10.5 in Leo near the M65 and M66 galaxies.
		NGC 3628 is larger than M65 and M66 measuring about 12 arcminutes in length, but is fainter.
	members.cox.net /~sidleach/ngc3628.htm (143 words)

	Galaxy Hopping Though Leo the Lion
		M66 is to the east and NGC 3628 is to the north-east.
		Both galaxies are visible in the same telescopic field of view along with a third galaxy, NGC 3628.
		At 109X M65 is oval in shape with a bright nucleus; M66 seems a bit brighter than M65 and distinctly brighter than NGC 3628, both of which are in the same field of view; NGC 3628 is very dim with little detail visible and appears oriented south-west to north-east.
	www.fvastro.org /beginners/galaxy_hopping_leo.htm (946 words)

	Galaxy Collisions: Figures
		The collisional galaxy system AM1724-622, nick-named the "Sacred Mushroom." The strong ring wave of the primary galaxy was almost certainly induced by an interpenetrating collision.
		In this case the trajectory of the companion galaxy was nearly perpendicular to the primary disk, and the point of closest approach was at the edge of that disk (see Gerber 1993 for details).
		NGC 3923 on the left is an aligned system (type 1), and 0422-476 on the right is all-round, type 2 system (from Prieur 1990).
	www.public.iastate.edu /~curt/cg/figures.html (1005 words)

	Gaseous halos of spiral galaxies
		Answering this question is not only important in the context of understanding the nature of the ISM in galaxies, but also because metal-enriched gas leaving spiral galaxies might be a significant contributor to the metal enrichment (and thus chemical evolution) of intergalactic gas, as observed along the lines of sight to distant quasars.
		Galaxies with high levels of energy input are bright far-infrared sources and at the same time have relatively high mean dust temperatures, as traced by the ratio of the IRAS 60 mu to 100 mu flux ratio.
		The study of NGC 4666 also proved for the first time the fact that pure photo-ionization from massive stars within the disk of the galaxy cannot account for the excitation conditions of the diffuse ionized gas in its halo, as deduced from optical line ratios in an Osterbrock diagnostic diagram.
	www.atnf.csiro.au /people/mdahlem/sci/gashalos.html (1275 words)

	APOD: 2005 April 8 - Sideways Galaxy NGC 3628 (Site not responding. Last check: 2007-10-29)
		NGC 3628 is a spiral galaxy seen sideways.
		Milky Way galaxy, the disk of NGC 3628 is clearly seen to fan out near the galaxy's edge.
		The distorted shape and tidal tail suggest that NGC 3628 is interacting gravitationally with the other spiral galaxies in the Leo triplet, M66 and M65.
	antwrp.gsfc.nasa.gov /apod/ap050408.html (160 words)

	NGC 3628 (Site not responding. Last check: 2007-10-29)
		The distinct lanes of dust and gas bisecting the body of the galaxy are the tell-tale clue that it has a spiral form.
		NGC 3628 is a member of a group of galaxies, and gravitational interaction with the other members has left this galaxy a bit disturbed.
		Note the warp of the disk and the flaring of the outer rim of the galaxy.
	www.rc-astro.com /galaxies/ngc3628.html (154 words)

	NGC, IC, UGC, Image Collection
		NGC 3949, a Spiral Galaxy with Supernova 2000db.
		NGC 4567 and NGC 4568 Spiral Galaxies in Virgo; aka “The Siamese Twins”; Supernova 2004cc
		NGC 5682, NGC 5683, and NGC 5689, Spiral Galaxies; Quasar HB-89 1432+489; Supernova 2002db.
	www.kopernik.org /images/archive/ngcindex.htm (4852 words)

	Galaxy Pictures
		A galaxy is a large grouping of stars, star clusters, gas and dust held together by mutual gravitation.
		You might envision a spiral galaxy as a fried egg with the central bulge represented by the yolk and the egg white representing the flattened disk of spiral arms.
		The disks of spiral galaxies have much free dust and gas and they are regions of active star formation.
	astronomy.luther.edu /galaxies.htm (371 words)

	RE: Best DSO after Messier objects - Astronomy.com Forums
		NGC 6960, 6992, and 6995 in Cygnus, The Veil region
		NGC 2244 in Monoceros, the Rosette Nebula and cluster
		ngc 4565 is on of my favourite DSO's, its an edge on galaxy with a long dust lane crossing the central bright bulge and with prolonged observation in a reasonable size scope and good skies it is stunning to view.
	www.astronomy.com /ASY/CS/forums/255156/PrintPost.aspx (1457 words)

	Image of the month: March 2000: NGC 3628 (3 colour) (Site not responding. Last check: 2007-10-29)
		3 colour composite of the edge on spiral galaxy NGC 3628 in Leo.
		NGC 3628 belongs to the M 65/M 66 (NGC 3623 and NGC 3627) Group of galaxies.
		NGC 3628 gehört zur M 65/M 66 (NGC 3623 und NGC 3627) Galaxiengruppe.
	www.astro.uni-bonn.de /~maltmann/n3628colinfo.html (191 words)

	Introduction
		Star-forming molecular clouds are mostly found along spiral arms and it is widely recognized that the spiral gravitational potential perturbation has a strong influence on the formation and the long-term evolution of molecular clouds.
		The magnificent spiral arms in M51 are due to the tidal encounter with its companion, a peculiar galaxy, NGC 5195.
		NGC 3627 forms the Leo triplet together with its neighboring galaxies M65 and NGC 3628 which might tidally pull and tug NGC 3627 to deform its spiral arms.
	www.astro.umd.edu /~kimwt/research.html (580 words)

	NGC 3628 (Site not responding. Last check: 2007-10-29)
		NGC 3628 forms a conspicuous group with M65 and M66, the Leo Triplet or M66 group (named after the brightest of the three).
		A conspicuous band of dark dust clouds form a broad equatorial band, which obscures the galaxy's bright central region, and hides most of the bright young stars in its spiral arms.
		The dust band, or belt, is obviously distorted and deformed in the outer regions of the galaxy.
	astronomy.nju.edu.cn /astron/Messier/n3628.html (226 words)

	APOD: November 1, 1996 - Spiral Galaxy NGC 3628 Edge On (Site not responding. Last check: 2007-10-29)
		This view of NGC 3628 nearly resembles our own Milky Way Galaxy, which is also known to be a spiral.
		NGC 3628 is the faintest member of the Leo Triplet, a group of galaxies dominated by M65 and M66.
		The center of NGC 3628 emits variable X-ray radiation perhaps indicating the presence of a massive fl hole.
	antwrp.gsfc.nasa.gov /apod/ap961101.html (148 words)

	Messier 66 (NGC 3627) (Site not responding. Last check: 2007-10-29)
		M66 is a dusty spiral galaxy, and is a member of the same compact group of galaxies as M65 and NGC 3628.
		The spiral arms are very easy to see, but seem distorted and displaced above the plane of the galaxy, probably a result of interactions with its neighbours.
		The green line through the galaxy is the trail of an artificial satellite that crossed the field during the 30 minute exposure of the green-light plate.
	www.astro.livjm.ac.uk /courses/one/NOTES/aat062.html (192 words)

	NGC 253
		NGC 253 reveals a bar which has been detected in the near-infrared (Scoville et al.
		The emission is distributed rather similar to the optical light and shows a rather regularly rotating spiral galaxy (Koribalski, Whiteoak and Houghton 1995).
		The major-axis position-velocity diagram of NGC 253 is rather similar to that of NGC 1808 (Fig.
	www.atnf.csiro.au /people/bkoribal/min_lecture/node7.html (419 words)

	NGC 3628
		This galaxy is the dimmest of the three comprising the Leo Triplet.
		Notable features of this galaxy are the prominent dust lanes that appear puffed out and distorted beyond the galactic plane.
		Astronomers believe that this is probably due to gravitational interaction with it's neighbor galaxies in the Leo Triplet.
	www.cosmonut.org /ngc_3628.htm (119 words)

	NGC 3628 (Site not responding. Last check: 2007-10-29)
		The edge on spiral galaxy NGC 3628 is one of the Leo Triplet of galaxies seen in this image taken by Chris Newsome on the 28th February 2006.
		NGC 3628 lies at the lower left of the triplet, which also includes M65 at the top and M66 at the lower right.
		The image was taken with a Canon EOS 300D camera at the prime focus of a Skywatcher 80T refractor and comprises eight 150 second frames at 800 ASA, calibrated in Maxim DL and processed in CS2 using just RGB levels and curves.
	www.derbyastronomy.org /NGC3628.htm (117 words)

	The Shape of the Milky Way
		From this work he believed that the stars forming our galaxy were grouped in a flattened distribution, with our sun near the center and the Milky Way marking the directions of the Galaxy's greatest extent.
		The center of the globular cluster distribution, and thus the true center of the Galaxy, was estimated to be about 10 kiloparsecs away in the direction of Sagittarius.
		The bulge of NGC 1232 appears to be slightly elongated, but not to the degree of a bar in a typical barred spiral galaxy.
	homepage.mac.com /rarendt/Galaxy/mw.html (1275 words)

	David Malin's Colour Photographs of Deep Sky Objects
		The Cone Nebula in the NGC 2264 cluster
		NGC 3351, M95, a barred spiral galaxy in Leo
		NGC 6559, emission and reflection nebula in Sagittarius
	www.seds.org /~spider/Spider/Deepsky/aaongc.html (528 words)

	M66 (Site not responding. Last check: 2007-10-29)
		Description of object: The galaxies in the above image are (counter clockwise starting in the bottom middle) M66, M65, and NGC 3628.
		Observation of such dust lanes in external spiral galaxies helped astronomers understand the role dust plays in observations of our own galaxy.
		All of these galaxies are spiral galaxies found in Leo.
	astronomy.luther.edu /M66M65NGC3628.htm (72 words)

	COAA 2005 visit images
		NGC 4361 - a Planetary Nebula in Corvus
		Messier 100 is a face on Spiral Galaxy in Coma and this view also shows two fainter and smaller galaxies NGC4322 above left and NGC 4328 at left of M100
		NGC 3628 lies above Messiers' 65 and 66 in Leo and is an edge on Spiral Galaxy to us
	www.astrospace.co.uk /gallery/coaa-2005/coaa-2005.html (568 words)

	Ole's Astronomy Site: Galaxies in Leo and Leo Minor
		This galaxy group comprises the bright Messier objects M95, M96 and M105 and further NGC 3299, 3377, 3384, 3412 and 3489.
		Bright and slightly peculiar spiral galaxy located less than one degree from both M95 and M105, all members of the Leo I galaxy group.
		The irregular galaxy NGC 3389 at the lower left appears to be an unrelated background galaxy
	www.ngc7000.org /ccd/gal-leo.html (489 words)

	Spiral Galaxy NGC 3628 Edge On (Site not responding. Last check: 2007-10-29)
		The dark band across the center is absorbed starlight caused by the galaxy's own interstellar dust.
		NGC 3628 is the faintest member of the Leo Triplet, a group of galaxies dominated by
		The center of NGC 3628 emits variable X-ray radiation perhaps indicating the presence of a massive
	www.astronet.ru /db/xware/msg/1162349 (106 words)

	NGC 3628 (Site not responding. Last check: 2007-10-29)
		This picture has been specially enhanced to reveal NGC 3628, which is seen as an edge-on spiral galaxy, crossed by a dust lane.
		Galaxies seen edge-on are rare, but this example has other peculiarities.
		NGC 3628 Gx 11 20.3 +13 36 s Leo 14.89.5 pB, vL, vmE 102deg
	www.aao.gov.au /images/captions/aat063.html (201 words)

	NGC 3628
		Description: NGC 3628 is the largest but faintest of the striking galaxy trio in the constellation of Leo.
		Both M 65 and M 66 are located to the south (off the bottom of the above frame) of NGC 3628.
		Any use of these images without the prior written consent or knowledge of the author is strictly prohibited.
	www.astrophoto.net /ngc3628.html (148 words)

	David's Astronomy - Herschel Objects
		Herschel 1-4 / NGC 7009 Planetary Nebula (Saturn Nebula)
		Herschel 120-2 / NGC 4548 / M91 - Spiral Galaxy
		Herschel 139-1/ NGC 4303 / M61 - Spiral Galaxy
	www.richweb.f9.co.uk /astro/herschel_objects.htm (987 words)

	NGC Objects 3600 to 7840 (Site not responding. Last check: 2007-10-29)
		Arp 296 (small galaxy up and to the left) and IC694 (galaxy interacting with slightly larger NGC3690) are also shown.
		The spiral galaxy to the left of center is NGC5850.
		The galaxy to the right of center is NGC5846.
	www.3towers.com /ngcB.htm (319 words)

	The ISU Astronomy Calendar, June 2005: NGC 3628, A Galaxy on Edge (Site not responding. Last check: 2007-10-29)
		Instead of spiral arms we see a very sdistinctive dust lane running the length of the galaxy.
		Fortunately, spiral galaxies also have a bulge of stars surrounding their central regions that you can see in this image.
		By comparing the size of a galaxy's bulge to its disk, astronomers can gain a good idea of what a galaxy's spiral arms look like even without being able to see them directly.
	www.public.iastate.edu /~astro/fickwww/calendar2005/june.html (203 words)

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