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Topic: NGC 4303

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Virgo cluster

	List of NGC objects
		NGC 13 - a galaxy in the Andromeda constellation
		NGC 908 - a starburst/spiral galaxy in the Cetus constellation
		NGC 5866 - a lenticular galaxy in the Draco constellation
	www.sciencedaily.com /encyclopedia/list_of_ngc_objects (4007 words)

	Special Herschel List
		Planetary Nebulae: NGC 40,NGC 246,NGC 651,NGC 1501,NGC 1535,NGC 2022,NGC 2371,NGC 2372,NGC 2392,NGC 2438,NGC 2440,NGC 3242,NGC 4361,NGC 6369,NGC 6445,NGC 6543,NGC 6629,NGC 6781,NGC 6818,NGC 6826,NGC 6905,NGC 7008,NGC 7009,NGC 7662,
		Globular Clusters: NGC 288,NGC 2419,NGC 4147,NGC 5466,NGC 5634,NGC 5694,NGC 5897,NGC 6144,NGC 6171,NGC 6229,NGC 6235,NGC 6284,NGC 6287,NGC 6293,NGC 6304,NGC 6316,NGC 6342,NGC 6355,NGC 6356,NGC 6401,NGC 6426,NGC 6440,NGC 6517,NGC 6522,NGC 6528,NGC 6544,NGC 6553,NGC 6569,NGC 6624,NGC 6638,NGC 6642,NGC 6712,NGC 6934,NGC 7006,
		C/N: NGC 1931,NGC 1980,NGC 2244,NGC 2264,NGC 6514,NGC 6823,NGC 7380,
	www.physics.ohio-state.edu /~trittman/SpecialHerschelList.html (354 words)

	Encyclopedia: List of NGC objects (Site not responding. Last check: 2007-10-15)
		NGC 317A - a lenticular galaxy in Andromeda
		NGC 389 - a lenticular galaxy in Andromeda
		NGC 908 - a starburst/spiral galaxy in Cetus
	www.nationmaster.com /encyclopedia/List-of-NGC-objects (9507 words)

	How Many Galaxies can be Packed into One Area of Sky?
		Also known as NGC 4303, it is a spiral galaxy.
		NGC 4535 is another round galaxy, with a brightness of magnitude 9.8, and seeming to have a size between that of M49 and M61.
		NGC 4426 is an elongated galaxy, which often is the result of a galaxy having a past gravitational encounter with another galaxy.
	www.tmclark.com /Starwatch/5_10.html (702 words)

	Virgo
		M61 (NGC 4303) (12h 19.4m +04°45') This is a beautiful spiral galaxy seen face on.
		M84 + M86 (NGC 4374 and NGC 4406) (12h 22.6m +13°10' and (12h 23.7m +13°13'))This is a bright pair of elliptical galaxies.
		M90 (NGC 4569) (12h 34.3m +13°26') is a bright spiral galaxy of magnitude 10.
	starryskies.com /The_sky/constallations_html/virgo.html (601 words)

	Vir - Virgo
		North of M86 is NGC 4402, an 11.5-magnitude spiral with a pronounced dust lane, but this object is not seen in a 100-mm.
		A faint spiral galaxy, 0.5 degree to the north of NGC 4535.
		In the same eyepiece field is NGC 4647, which the catalogues describe as an 11th-magnitude late-type spiral.
	mypage.bluewin.ch /horo/ngc/vir.htm (1693 words)

	1 Introduction
		The close galaxy pair NGC 4410a/b is strongly influenced by their interaction, causing central activity.
		Furthermore, NGC 4569 is located within the observable central X-ray cooling flow of the Virgo cluster (Böhringer et al.
		According to Keel (1996), the interpretation as an AGN is equivocal because of constraints provided by small line widths and dominance of a single photospheric temperature in the optical spectra.
	aanda.u-strasbg.fr:2002 /articles/aa/full/2001/46/aah2677/node1.html (1358 words)

	Astron. Astrophys. 360, 447-456 (2000)
		As already mentioned, no useful spatial information on the X-ray structure of NGC 4303 can be obtained from the PSPC data due to the spatial resolution of the detector, and moreover to the 17´ off-axis position of the source in the FOV.
		The labeled sources (A-F) are the ones spatially coinciding with the optical disk of NGC 4303 (see text and Table 4 for details).
		Nevertheless, self-absorption within NGC 4303 must be expected, and small-scale deviations from the observed Galactic value by DL90cannot be ruled out and may result in a higher absorption from the Milky Way.
	aa.springer.de /papers/0360002/2300447/sc3.htm (1451 words)

	'Ngc' related links at LinkHighWay.com
		NGC Certifies Matte Proof Gold 1858-O Double Eagle NGC Graded MS-63 5055514-003 The mintage of double eagles at New Orleans in 1858 was just 35,250 pieces.
		NGC is 100% dedicated to Nintendo’s most powerful, dazzling console, the Gamecube.
		NGC 7331 Description: NGC 7331 was discovered by William Herschel in 1784.
	linkhighway.com /?q=ngc (738 words)

	HST Daily Report # 3312 \| SpaceRef - Your Space Reference
		NGC 4303 is to date the best example of the claimed starburst- AGN connection.
		If the Seyfert classification is confirmed, NGC 4303 will be the first ever detected galaxy with a Seyfert nucleus where the ionizing and bolometric energy output of its core {size <= 4 pc} could be dominated by a massive stellar cluster of young stars, as implied by the STIS UV spectrum.
		NGC 4303 will also be one of the few Seyferts for which the mass enclosed within the inner few pc would have been determined independently from stellar and gas kinematics.
	www.spaceref.com /news/viewsr.html?pid=8202 (2868 words)

	Ngc - adsbit.harvard.edu/cgi-bin/nph-article_query?1995A (Site not responding. Last check: 2007-10-15)
		NGC 1316, pictured above, is most obviously strange because it has a Again, NGC 1316 was found atypical in that the nova rate was unexpectedly high.
		NGC 7331, Galaxy and Galaxy Cluster in Pegasus
		NGC 7331, Galaxy and Galaxy Cluster in Pegasus, photo and description.
	infosvc.com /ifsv/ngc.htm (196 words)

	Astronomy Object Index listing for N (Site not responding. Last check: 2007-10-15)
		On the giant, horizontal and asymptotic branches of galactic globular clusters - V. CCD photometry of NGC 1261.
		CCD photometry of the globular cluster {omega} Centauri.
		An X-ray survey of the open cluster NGC 6475 (M7) with ROSAT.
	xml.gsfc.nasa.gov /archive/AstroObjectIndexN.html (1108 words)

	Calculation of Fractal Dimensions of the Contours (Site not responding. Last check: 2007-10-15)
		The examples show fractal dimensions of 50 contours generated for different intensity values for an elliptical galaxy (NGC 4374) and a spiral galaxy (NGC4303).
		The average correlation dimension is significantly lower for the elliptical galaxy than the spiral relating to its less complex structure.
		The average capacity dimension on the other hand is higher for the elliptical than the spiral galaxy, which contradicts our expectation.
	www.physics.unlv.edu /~thanki/thesis/node19.html (444 words)

	Catalogue des nébuleuses et amas d'étoiles de Charles Messier
		Triplet du Lion (groupe NGC 3627) dans le groupe Leo I, et la galaxie M 66 (NGC 3627) se trouve à 20,3' ESE.
		Triplet du Lion (groupe NGC 3627) qui comprend la galaxie M 65 à 20,3' ONO, la galaxie NGC 3628 à 36' N et probablement la galaxie NGC 3593 qui, à 1,5° O, est un peu isolée des trois premières.
		Galaxie de l'Écharde (NGC 5907) à 1,4° ENE, les galaxies NGC 5879 et UGC 9776.
	www3.sympatico.ca /gervais.chouinard/messier2.htm (2179 words)

	[No title]
		The global O/H gradients in NGC 925 [{DELTA}log(O/H)/{DELTA}R=0.033dex/kpc] and NGC 1073 [{DELTA}log(O/H)/{DELTA}R=0.048dex/kpc] are flatter than the gradients observed in normal galaxies of the same morphological type.
		The abundance gradient in NGC 4303 is identical to that found in normal spiral galaxies.
		A comparison is made between the O/H gradients of normal galaxies and of a sample of galaxies showing a barred morphology it is concluded that the global abundance gradients of spiral galaxies with a barred structure are in general shallower than gradients of normal galaxies.
	archive.astro.umd.edu /archive/journals/ApJ/424/599 (341 words)

	Herschel's numbers for Messier objects (Site not responding. Last check: 2007-10-15)
		M76 p NGC 651 H I.193 M82 e NGC 3034 H IV.79 M91 m NGC 4548 H II.120 in M101 p NGC 5447 H III.787 in M101 p NGC 5461 H III.788 in M101 p NGC 5462 H III.789 M102?
		m NGC 5866 H I.215 M104 a NGC 4594 H I.43 M105 a NGC 3379 H I.17 M106 a NGC 4258 H V.43 M107 a NGC 6171 H VI.40 M108 a NGC 3556 H V.46 M109 a NGC 3992 H IV.61 M110 a NGC 205 H V.18
		M105 a NGC 3379 H I.17 M104 a NGC 4594 H I.43 M 61 e NGC 4303 H I.139 at M 51 p NGC 5195 H I.186 pt.M 76 p NGC 651 H I.193 M102?
	www.seds.org /messier/xtra/similar/her-m.html (216 words)

	3 Properties of the HII region sample (Site not responding. Last check: 2007-10-15)
		For NGC 3351 and the Virgo cluster member NGC 4321 we adopt the Cepheid distances from Freedman et al.
		The other two Virgo galaxies (NGC 4254, NGC 4303) are member of the same subgroup as NGC 4321 (Boselli, private communication).
		The distance of NGC 3521 is taken from Tully's (1998) Nearby Galaxy Catalog.
	cdsads.u-strasbg.fr:2002 /articles/aa/abs/2002/41/aa2816/node3.html (1232 words)

	Spiral Galaxy Images Photos Spirál Galaxisok Fotók Pictures
		NGC 4486, Elliptical Virgo A ¶, Virgo Cluster
		NGC 6221 Coloured, Tripla CUK ¶¶¶, ah Ara
		NGC 3486, UGC 6079, Coloured red ¶, Leo Minor
	www.biochem.szote.u-szeged.hu /astrojan/gals1t.htm (139 words)

	List of Figures (Site not responding. Last check: 2007-10-15)
		Fractal Dimensions of NGC 4374 (Elliptical) and NGC 4303 (Spiral)
		Some of the contours for NGC 2403 and its fractal dimensions
		Some of the contours for NGC 5813 and its fractal dimensions
	www.physics.unlv.edu /~thanki/thesis/node3.html (65 words)

	Spiral Galaxy NGC 4303 (M61) (Site not responding. Last check: 2007-10-15)
		The bright spiralgalaxy Messier 61 (NGC 4303) in the Virgo cluster, shown from a red-light exposure with a Tektronix 800x800 CCD at the 2.1-meter telescope of Kitt Peak National Observatory.
		North is at the top and east to the left, for direct comparison with a chart or eyepiece view.
		Only the inner part of the galaxy was included in this image, which was taken as part of a study comparing star formation in galactic nuclei to the same process as it occurs in spiral arms.
	www.astr.ua.edu /gifimages/m61r.html (140 words)

	M 61 (Site not responding. Last check: 2007-10-15)
		Spiral Galaxy M61 (NGC 4303), type SABbc, in Virgo
		M61 was discovered by Oriani on May 5, 1779 when following the comet of that year, 6 days before Charles Messier's discovery, who had seen it on the same day as Oriani but mistaken it for the comet.
		Messier (speaking of himself) realized it was not the comet, but a nebula that happens to lie on its path and at the same point in the sky." Charles Messier from his
	www.messiermarathon.com /new_page_67.htm (181 words)

	(IAAC) Obj: M 61 (NGC 4303) - Inst: 40" f/5 dob (Site not responding. Last check: 2007-10-15)
		(IAAC) Obj: M 61 (NGC 4303) - Inst: 40" f/5 dob
		Subject: (IAAC) Obj: M 61 (NGC 4303) - Inst: 40" f/5 dob
		Prev: (IAAC) Obj: NGC 6369 - Inst: 40" f/5 dob
	www.visualdeepsky.org /netastrocatalog/msg01884.html (315 words)

	(IAAC) Fwd: SN 1999gn in NGC 4303 = Messier 61 (Site not responding. Last check: 2007-10-15)
		Otherwise, it'll brighten sharply (and may already be waning?) by the time we have another crack at Virgo under moonless skies, early in the New Year.
		Lew Gramer ------- Forwarded Message Date: Mon, 20 Dec 1999 09:04:22 +0900 (JST) From: Hitoshi YAMAOKA To: Multiple recipients of isn_chat Subject: SN 1999gn in NGC 4303 = Messier 61 Dear SN watchers, An Italian amateur A. Dimai has discovered an apparent supernova in a famous galaxy Messier 61.
		According to IAUC 7335, the discovery was made on the image taken at Dec.
	www.visualdeepsky.org /chat/msg01718.html (372 words)

	IMAGE INDEX (Site not responding. Last check: 2007-10-15)
		NGC 2632 NGC 2168 NGC 2099 NGC 2068 NGC 1960 NGC 1952 NGC 1912 NGC 1982 NGC 1976 NGC 1904
		NGC 7654 NGC 7092 NGC 6913 NGC 7078 NGC 7089 NGC 7099
		NGC 6121 NGC 6093 NGC 5904 NGC 4552 NGC 4548 NGC 4501 NGC 4486 NGC 4472 NGC 4406 NGC 4382 NGC 4374 NGC 4321 NGC 4303 NGC 4254 NGC 4192 NGC 3627 NGC 3623 NGC 4258
	nfo.edu /image.htm (268 words)

	More galaxy clusters (Site not responding. Last check: 2007-10-15)
		Centaurus Galaxy Cluster [Abell 3526] [12h 40m, -41 deg -- not suited for Northern Hemisphere observers]
		The four digits (without a preface) are the NGC Catalog number [i.e.
		Centaurus Galaxy Cluster [Abell 3526] -- not suited for Northern Hemisphere observers
	learnt.smec.curtin.edu.au /astro/html/galaxy_clusters.html (63 words)

	Aggiornamenti sulla SN 1999 gn in M61
		4303 = M61), found on a CCD frame taken on Dec. 17.22 UT with a 0.50-m telescope.
		Dimai, Cortina, Italy, discovered an apparent supernova in NGC 4303 (= M61) on
		of the supernova down to magnitude 19.0 on a KAIT image of NGC 4303 taken on
	aac.sunrise.it /gn_aggiornamenti.htm (392 words)

	KAIT GALLERY
		Composite color image of SN 1998dh in NGC 7541.
		(M31 = NGC 224) (M32 = NGC 221) (M33 = NGC 598) (M49 = NGC 4472) (M51 = NGC 5194)
		(M58 = NGC 4579) (M59 = NGC 4621) (M60 = NGC 4649) (M61 = NGC 4303)
	astron.berkeley.edu /~bait/gallery.html (204 words)

	DSS Images for NGC 4300 thru NGC 4399
		All of the research images referenced below were generated from the Digitized Sky Survey (DSS), and are covered by this copyright summary and acknowledgement.
		Click on the image thumbnail to see just the image, or the NGC object designation button, just below the thumbnail, to see its image and data.
		It will appear in its own separate window, which can be closed when you are finished viewing the image.
	www.ngcic.org /dss/dss_n4300.asp (263 words)

	IMAGE INDEX
		NGC 6613 NGC 6611 NGC 6681 NGC 6656
		23:NGC 2682 NGC 2682 NGC 2682 NGC 2682 NGC 2682 NGC 2682 NGC 2682 NGC 2682 NGC 2682 NGC 2682 NGC 2682 NGC 2682 NGC 2682 NGC 2682 NGC 2682 NGC 2682 NGC 2682
		NGC 1952 NGC 1952 AO0235+164 AO0235+164 PKS0215+015 PKS0215+015 PKS0215+015 Nova Cas 95 Nova Cas 95 Nova Cas 95 Nova Cas 95 Nova Cas 95 Nova Cas 95 Nova Cas 95 Nova Cas 95 I Flatfield Nova Cas 95 3C446 3C446 AO0235+164 PKS0735+178
	nfo.edu /image.old.htm (3417 words)

	Astron. Astrophys. 360, 447-456 (2000)
		The late-type galaxy NGC 4303 (M61) is one of the most intensively studied barred galaxies in the Virgo Cluster.
		We present observations of NGC 4303 with the ROSAT PSPC and HRI in the soft X-ray (0.1-2.4 keV).
		The bulk of the X-ray emission is located at the nuclear region.
	aa.springer.de /papers/0360002/2300447/small.htm (215 words)

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