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Topic: Spiral Galaxy NGC 2403

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Spiral galaxy

	Universe Today - Spiral Galaxy NGC 2403 (Site not responding. Last check: 2007-10-15)
		In the spiral arms we see active star formation regions in red, clusters of young blue stars called OB associations, and darker regions called dust lanes where light is blocked by gas and dust within the galaxy.
		NGC 2403 has become an important standard galaxy when deciding the distances to other galaxies, as we recognize the vast expanse of space.
		Larger galaxies are thought to have developed from the collision and merger of smaller galaxies.
	www.universetoday.com /am/publish/printer_spiral_galaxy_ngc2403.html (277 words)

	2MASS Atlas Image Gallery
		Imaging this galaxy in the near-IR allows us to look deeper through the extinction caused by the dust and also better map the light and mass distribution of the galaxy, since the light from spiral galaxies in the near-IR is dominated by lower-mass stars, which comprise most of a galaxy's visible mass.
		It is this galaxy for which water megamasers detected in the radio orbiting very near the galaxy's center indicate the presence of a supermassive fl hole and allow an accurate kinematical measurement of the fl hole's mass.
		The smaller galaxy to the northeast of NGC 4649 in the 2MASS image is the spiral galaxy NGC 4647.
	www.ipac.caltech.edu /2mass/gallery/images_galaxies.html (5729 words)

	APOD: 2006 July 5 - Spiral Galaxy NGC 2403 from Subaru (Site not responding. Last check: 2007-10-15)
		Also visible in the photogenic spiral galaxy are blue open clusters, dark dust lanes, and a bright but relatively small central nucleus.
		NGC 2403 is located just beyond the Local Group of Galaxies, at a relatively close 10 million light years away toward the
		In 2004, NGC 2403 was home to one of the brightest supernovas of modern times.
	antwrp.gsfc.nasa.gov /apod/ap060705.html (156 words)

	NGC 2403, Spiral Galaxy
		NGC 2403 in Camelopardalis is a relatively close and bright Spiral Galaxy with a small dim nucleus and open spiral arms.
		NGC 2403 was the first galaxy beyond the Local Group in which Cepheid variables were found.
		NGC 2402 was the host of two observed supernovae before the discovery of SN 2004dj.
	www.kopernik.org /images/archive/n2403.htm (250 words)

	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 forms a conspicuous group with M65 and M66, the Leo Triplet or M66 group (named after the brightest of the three).
		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 2403
		This beautiful spiral galaxy is an outlying member of the M81 group of galaxies, and thus about 12 million light years distant.
		NGC 2403 is among the more conspicuous Northern objects which Charles Messier missed when compiling his catalog.
		This supernova was situated 36E, 100N of the galaxy's nucleus and reached mag 16.0 in its maximum.
	www.seds.org /messier/xtra/ngc/n2403.html (145 words)

	NGC 2403 - Galaxy in Camelopardalis
		One of these galaxies is NGC 2403, the showpiece of Camelopardalis.
		It is a large, loose-structured spiral galaxy lying in the constellation's southeast corner.
		NGC 2403 can be seen easily as a large hazy spot in binoculars, and a telescope will show a bright elliptical haze surrounded by a faint outer halo.
	www.nightskyinfo.com /archive/ngc2403_galaxy (160 words)

	S105 Student Work
		This spiral galaxy is member of the local group of galaxies, which also includes our own Milky Way Galaxy and the Andromeda Galaxy (M31).
		The spiral galaxy NGC 2403, an outlying member of the M81 Group of galaxies, is imaged in blue (B), visual (V), red (R), and near-infrared (I) light, as well as in H-alpha light of hot hydrogen gas.
		NGC 2403 is very similar in appearance and overall characteristics to the Triangulum Galaxy, a member of the local group of galaxies.
	www.astro.indiana.edu /s105_work.shtml (640 words)

	Neutral hydrogen studies
		NGC 3310 may be the example of a major merger in which most of the gas in the inner parts has been preserved in neutral atomic form and either one of the progenitor disks has survived or a new disk has formed.
		NGC 3656 is a useful laboratory to study the evolution of neutral gas in early-type galaxies.
		NGC 3656 is reminiscent of Cen-A for its warped HI configuration in the inner parts.
	www.bo.astro.it /report99/node41.html (871 words)

	Gas and Galaxy Evolution: Abstracts
		Evidence for the presence of various phases of the interstellar medium in the halos of "normal" spiral galaxies is summarized and it is demonstrated that the presence of gaseous halos correlate with the star formation in the disk.
		The amount of gas present in a galaxy during its formation and its further evolution is a key factor in understanding the structure of a galaxy, hence it is important to understand the gas properties of early-type galaxies, even if they are not gas rich as spiral galaxies.
		NGC 4410A is strongly interacting with three nearby galaxies, and has a peculiar ring-like optical morphology, a number of extremely luminous H~II regions, as well as tidal tails and bridges variously visible in optical, HI, and X-ray light.
	www.aoc.nrao.edu /~mrupen/VLA2000/abstracts.shtml (16694 words)

	Neutral hydrogen studies
		One of these, NGC 4559, shows a strongly kinematically lopsided disk and the presence of anomalous HI as NGC 2403.
		These galaxies are part of the WHISP (Westerbork Survey of HI in Irregular and Spiral galaxies) sample of galaxies.
		This project is the continuation of the study of dark matter in spiral galaxies of different luminosities and morphological types.
	www.bo.astro.it /report01/node34.html (464 words)

	Caltech Astronomy : Palomar Observatory spiral galaxy NGC 2403
		Caltech Astronomy : Palomar Observatory spiral galaxy NGC 2403
		The spiral galaxy known as NGC 2403 is a member of the M81 group of galaxies.
		This image was captured on the night of March 11, 2004 by David Thompson of the California Institute of Technology.
	www.astro.caltech.edu /palomar/ngc2403.html (247 words)

	NGC 2976, Spiral Galaxy (Site not responding. Last check: 2007-10-15)
		The large spiral NGC 2403 in Camelopardalis also appears to be a dynamical member of this group.
		This is another odd galaxy, usually classed as a spiral of type Sd although very little evidence of spiral structure appears on photographs.
		The outline is elliptical; there does not appear to be any definite nucleus, and the entire surface of the galaxy is resolved into a mottled conglomeration of star clouds and dust patches.
	www.kopernik.org /images/archive/n2976.htm (179 words)

	Universe Today - Spiral Galaxy NGC 2403
		NGC 2403 is an Sc type galaxy with open spiral arms and a small nucleus.
		Edwin Hubble used NGC 2403 as evidence to help prove that galaxies move faster away from us the further they get.
		Subaru Telescope, using Suprime-Cam, took the clearest most complete image to date of the spiral galaxy NGC 2403.
	www.universetoday.com /am/publish/spiral_galaxy_ngc2403.html?14102005 (377 words)

	Astron. Astrophys. 352, 399-405 (1999)
		The distance modulus of the spiral galaxy NGC 2403 derived from light curves of cepheids is
		As was noted by Karachentsev (1996), among the well-studied groups around nearby giant galaxies the number of dSph companions depends strongly on the morphological type of the main galaxy.
		But a presence of spheroidal dwarf companion around NGC 2403 may be the first case of disagreement with the mentioned tendency.
	aa.springer.de /papers/9352002/2300399/sc8.htm (341 words)

	San Diego Source > Photo Library
		Sprawling spiral arms dotted with bright red emission nebulas highlight this new and detailed image of nearby spiral galaxy NGC 2403.
		NGC 2403 is located just beyond the Local Group of Galaxies, at a relatively close 10 million light years away toward the constellation of the Giraffe (Camelopardalis).
		The above image, the highest resolution complete image of NGC 2403 ever completed, was taken by the Japan's 8.3-meter Subaru telescope located on Mauna Kea, Hawaii, USA.
	www.sddt.com /PhotoLibrary/Astronomy.cfm?ImageNumber=1037 (137 words)

	2MASS Picture of the Week Archive
		R Mon is thought to be a relatively young pre-main sequence star, and NGC 2261 is one lobe of a bipolar outflow from R Mon (Aspin et al.
		In the optical, NGC 3576 shows bright extended loop-like nebulosity to the northeast, which is not seen in the 2MASS image.
		(Many spiral galaxies have large numbers of these giant HII regions; the Milky Way has very few.) NGC 3603 is along the Carina spiral arm of the Galaxy, at a distance of about 6000-7000 pc (20000-23000 light years) from us.
	www.ipac.caltech.edu /2mass/gallery/powcap18.html (694 words)

	Observations of object "N2403"
		Among the many deep-sky objects that I observed on this cold and unsteady night was the 8.9 magnitude spiral galaxy NGC 2403.
		This slightly elongated, face-on H400 galaxy is situated between two fairly bright field stars and spans some 16.8'x10.0'.
		NGC 2403 appeared as a large, diffuse, and somewhat oval glow.
	www.lies.com /aaol/view_obs.cgi?obj=n2403 (75 words)

	NGC 2403 - Wikipedia, the free encyclopedia
		NGC 2403 is a type Sc spiral, an outlying member of the M81 Group, and is approximately 11 million light years distant.
		As of late 2004, there had been two reported supernovae in the galaxy: SN 1954J and SN 2004dj.
		This page was last modified 12:41, 22 October 2006.
	en.wikipedia.org /wiki/Spiral_Galaxy_NGC_2403 (90 words)

	[No title]
		The second spiral galaxy, called NGC 2403, is a galaxy containing an old yellow star population in its center region that merges into a disc with widely scattered blue star-formation knots in its spiraling "arms." Guest Investigator Dr. Wendy Freedman will use UIT images of these two galaxies in a digital atlas of spiral galaxies.
		Two other galaxies were observed by the ultraviolet telescopes nestled in Endeavour's payload bay last night.
		Claus Leitherer used HUT to observe a starburst galaxy and UIT Principal Investigator Theodore Stecher conducted ultraviolet studies of the structure of galaxies during an observation of elliptical galaxy NGC 205.
	science.ksc.nasa.gov /shuttle/missions/sts-67/news/sts-67-pocc-13.txt (802 words)

	Stanley Paul Sagan (Site not responding. Last check: 2007-10-15)
		The Abundance Gradient of NGC 2403 and Comparisons to M33
		High Signal-to-Noise observations are presentd of 11 H II regions in the Scd spiral galaxy NGC 2403.
		Comparisons are made to M33, another Scd galaxy, and evolutionary characteristics are shown to be similar.
	www.astro.umn.edu /grad/alumni/abstracts/sagan.html (131 words)

	[No title] (Site not responding. Last check: 2007-10-15)
		This image is a false-colour composite of the spiral galaxy NGC 2403 in Camelopardalis.
		It is based on three images in the filters U, I and H-alpha taken in october 1997 with the Nordic Optical Telescope (NOT) at La Palma.
		This is one of the galaxies I am investigating for my Ph.D. project, and it is very likely that the largest HII regions are actually ionized by massive star clusters that are just now being formed in their centres.
	www.astro.ku.dk /~soeren/n2403.html (87 words)

	Spiral Galaxy NGC 2403 - Bad Astronomy and Universe Today Forum
		Spiral Galaxy NGC 2403 - Bad Astronomy and Universe Today Forum
		If this is your first visit, be sure to check out the FAQ by clicking the link above.
		SUMMARY: The Japanese Subaru telescope took this high resolution image of spiral galaxy NGC 2403, located 10 million light years away.
	www.bautforum.com /showthread.php?p=578621 (178 words)

	eprintweb - Author Index Sancisi, astro-ph archive
		HI study of the warped spiral galaxy NGC5055: a disk/dark matter halo offset?
		The extra-planar neutral gas in the edge-on spiral galaxy NGC 891
		Kinematics of the Ionised Gas in the Spiral Galaxy NGC 2403
	eprintweb.org /S/authors/astro-ph/sa/Sancisi (443 words)

	HubbleSite - NewsCenter - A Bright Supernova in the Nearby Galaxy NGC 2403 (09/02/2004) - Release Images
		HubbleSite - NewsCenter - A Bright Supernova in the Nearby Galaxy NGC 2403 (09/02/2004) - Release Images
		A Bright Supernova in the Nearby Galaxy NGC 2403
		The region was observed with the Hubble Space Telescope's Advanced Camera for Surveys on Aug.
	hubblesite.org /newscenter/newsdesk/archive/releases/2004/23/image/c (112 words)

	Calvin College Observatory: Images - Best NGC Star Clusters, Nebulae, and Galaxies
		The NGC, IC, and UGC catalogs list thousands of star clusters, nebulae, and galaxies in the northern hemisphere.
		Some of these objects have been photographed by Calvin students in courses and in independent projects, using the Calvin Observatory and the Calvin-Rehoboth Robotic Observatory.
		As additional objects are photographed each semester, they will be added here.
	www.calvin.edu /academic/phys/observatory/images/NGC (84 words)

	Astronomy 616: Galaxies
		James 2:266 E+A galaxies selected from the Sloan Digital Sky Survey Data Release 2: The Origin of E+A Galaxies
		Glenn 3: A New, Kinematically Anomalous HI Component in the Spiral Galaxy NGC 2403
		Ashley 4: Summary: the evolution of [OII] emission from cluster galaxies
	ganymede.nmsu.edu /holtz/a616 (438 words)

	Jeff Bryant's NGC and Messier Shots from Ball State University's Department of Astronomy
		Jeff Bryant's NGC and Messier Shots from Ball State University's Department of Astronomy
		CCD images taken by Jeff Bryant at Ball State University's Department of Astronomy
		M108 (Dusty High-Inclination Spiral Galaxy w/ No Central Bulge)
	members.wri.com /jeffb/ngc (187 words)

	Observations made in the constellation Camelopardalis
		The humidity was high and transparency rather poor and to make matters worse the only serious light dome present at our site in the Tuscarora State Forest was in the northeast but the supernova itself was quite easy to see using 22, 17, and 12mm Type 4 Naglers.
		NGC 2403, the parent galaxy, was completely lost in the haze, however.
		Time: Sun Dec 27 08:18:00 1998 UT Obs.
	www.lies.com /aaol/view_obs.cgi?con=Cam (382 words)

	[No title] (Site not responding. Last check: 2007-10-15)
		Cold Spring, Kentucky USA N 39 00 21.7 W 84 26 1.2
		M27 The Dumbell Nebula Spiral Galaxy NGC 6946 The Moon
		Head of the Seagull Nebula M42 The Orion Nebula Spiral Galaxy NGC 2403 NGC 2244 Rosette Nebula
	home.fuse.net /coldspringobservatory/testpages/index.htm (39 words)

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