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Topic: NGC 7009

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	David's Astronomy - Herschel Objects
		Herschel 1-4 - NGC 7009 Planetary Nebula (Saturn Nebula)
		Herschel 1-4 / NGC 7009 Planetary Nebula (Saturn Nebula)
		Herschel 16-4 / NGC 6905 - Planetary Nebula
	www.richweb.f9.co.uk /astro/herschel_objects.htm (934 words)

	David's Astronomy - Cadwell Objects
		Cadwell 39 (NGC 2392 - Planetary nebula (Eskimo Nebula))
		Cadwell 55 (NGC 7009 - Planetary Nebula (Saturn Nebula))
		Cadwell 55 - NGC 7009 - Planetary Nebula (Saturn Nebula)
	www.richweb.f9.co.uk /astro/cadwell_objects.htm (415 words)

	The European Homepage For The NASA/ESA Hubble Space Telescope - Image Archive
		NGC 7009 has a bright central star at the center of a dark cavity bounded by a football-shaped rim of dense, blue and red gas.
		The cavity and its rim are trapped inside smoothly-distributed greenish material in the shape of a barrel and comprised of the star's former outer layers.
		NGC 7009 is 1, 400 light-years away in the constellation Aquarius.
	www.spacetelescope.org /images/html/opo9738g.html (159 words)

	APOD: December 30, 1997 - NGC 7009: The Saturn Nebula (Site not responding. Last check: 2007-10-14)
		APOD: December 30, 1997 - NGC 7009: The Saturn Nebula
		NGC 7009 first expelled the green gas that now appears barrel shaped.
		This green gas now confines stellar winds flowing from the central star, creating a jet which forms the ansae that appear in red at the tips.
	antwrp.gsfc.nasa.gov /apod/ap971230.html (145 words)

	Programa PIA 2003: "Kinematics of the ansae in NGC 7009" (Site not responding. Last check: 2007-10-14)
		Abstract: A characterization of the kinematics of the ansae in NGC 7009 was made using high dispersion echelle spectra and archive narrow band HST images for measuring radial velocities and proper motions, respectively.
		Assuming that the ansae are moving at equal and opposite velocity from the central star we obtain an average system radial velocity of -53 ± 2 km/s, the eastern ansa approaching and the western ansa receding at v_r= 6 ± 1 km/s respect to this value.
		The goal of this project is to characterize the kinematics of the ansae in NGC 7009.
	www.ctio.noao.edu /REU/ctioreu_2003/Projects2003/rfernandez/proyecto/project_en.html (761 words)

	PAS General Articles
		NGC 7009, the Saturn Nebula by John Barra disconnected from a dying red giant star.
		NGC 7009 can be found in Aquarius, very close to M72 and M73 as shown in the naked-eye view of Chart 1.
		William Herschel first observed NGC 7009 in 1782.
	www.astronomical.org /astbook/canyou3.htm (442 words)

	Cosmic Voyage-The Online Resource for Amateur Astronomers (Site not responding. Last check: 2007-10-14)
		NGC 7009 "Saturn Nebula": Planetary Nebula (Aquarius) RA: 21h 04.2m / DEC: -11º 21'.8
		This interesting planetary nebula has a photographic magnitude of 8.3 and resides in Aquarius, 1.3 degrees west of 4.5 magnitude Nu (13) Aquarii.
		The star 1'.5 northwest of NGC 7009 shines at 14th magnitude.
	members.aol.com /billferris/n7009.html (115 words)

	HubbleSite - Hubble's Planetary Nebula Gallery - Image - 12/17/1997
		It shows a roughly spherical outer envelope but an elongated inner balloon inflated by a fast wind from the hot central star, which is starting to break out of the spherical envelope at the top and bottom of the image.
		NGC 7009 is 1,400 light-years away in the constellation Aquarius.
		It is an example of a planetary nebula with a pinwheel or spiral structure; each blob of gas ejected from the central star has a counterpart on the opposite side of the star.
	www.hubblesite.org /newscenter/newsdesk/archive/releases/1997/38/image/b (804 words)

	Hubble's Planetary Nebula Gallery (PRC97-38b)
		NGC 6826's eye-like appearance is marred by two sets of blood-red "fliers" that lie horizontally across the image.
		NGC 6826 is 2,200 light-years away in the constellation Cygnus.
		NGC 5307 also lies in Centaurus but is about 10,000 light-years away and has a diameter of approximately 0.6 light-years.
	www.oarval.org /HPNb.htm (676 words)

	NGC : le carnet d'observations astronomiques de Nico, Greg et Cyp
		NGC 7009 fut découvert par William Herschel en 1782.
		Pour vous orienter vers NGC 7009, prolongez cette courbe formée par la queue du Dauphin jusqu'à une étoile relativement peu brillante (magnitude 4,3), 71 de l'Aigle (ou 71 Aql).
		NGC 7009 est assurément un de ces objets qui supportent très largement les forts grossissements.
	www.astrosurf.com /ngc/Objet-du-mois.htm (939 words)

	ESA - Science - Space sensations - Saturn Nebula (NGC 7009)
		The Saturn Nebula (NGC 7009) was one of the first discoveries of Sir William Herschel on 7 September 1782.
		NGC 7009 has a bright central star at the centre of a dark cavity bounded by an oval-shaped rim of dense, blue and red gas.
		The cavity and its rim are trapped inside smoothly-distributed greenish material in the shape of a barrel, which was the star's former outer layers.
	www.esa.int /esaSC/SEMBR33VQUD_sensations_0.html (249 words)

	No Title
		The O/H abundance ratio derived from our recombination line analysis of NGC 7009 is more than a factor of two higher than the solar oxygen abundance.
		NGC 7009 is Oxygen rich because the O/C ratio exceeds 1.
		With the help of the model, a comparison of the Hamilton data with the previous image-tube scanner (ITS) data suggests that a variation in nitrogen abundance may exist in NGC 7009, a result in harmony with that obtained by Balick et al (1994).
	www.atnf.csiro.au /people/plintel/groups/lsse/agb/941201/941201.html (3591 words)

	[No title] (Site not responding. Last check: 2007-10-14)
		NGC 7009 also called the Saturn Nebula is an unusual shaped planetary in the constellation Aquarius.
		It was first observed by William Herschel in 1782.
		NGC 7009 lies about 2900 light years away.
	members.cox.net /767/N7009.html (63 words)

	Galería de Nebulosas Planetarias del Hubble (PRC97-38b)
		Como NGC 6826, NGC 7009 tiene una brillante estrella central en el centro de una cavidad oscura limitada por un borde con forma de balón de football Americano hecho de densos gases azules y rojos.
		NGC 7009 está a 1.400 años-luz de distancia en la constelación del Acuario.
		NGC 5307 también está en Centauro, pero está a cerca de 10.000 años-luz de distancia y tiene un diámetro de aproximadamente 0,6 años-luz.
	www.oarval.org /HPNbsp.htm (744 words)

	[No title]
		Planetární mlhoviny NGC 6826 a NGC 7009 jsou velmi podobné.
		NGC 7009 má jasnou centrální hvìzdu v centru tmavé dutiny její hranicí v podobì fotbalového høitì je okraj modrého a èerveného plynu.
		NGC 7009 je 1400 svìtelných let vzdálena v souhvìzdí Vodnáøe.
	astro.sci.muni.cz /pub/hst1997/97-38b.html (496 words)

	The 3-D ionization structure and evolution of NGC 7009 (Saturn Nebula)
		The 3-D ionization structure and evolution of NGC 7009 (Saturn Nebula)
		Tomographic and 3-D analyses for extended, emission-line objects are applied to long-slit ESO NTT + EMMI high-resolution spectra of the intriguing planetary nebula NGC 7009, covered at twelve position angles.
		We derive the gas expansion law, the diagnostics and ionic radial profiles, the distance and the central star parameters, the nebular photo-ionization model and the spatial recovery of the plasma structure and evolution.
	aanda.u-strasbg.fr:2002 /articles/aa/abs/2004/12/aah4665/aah4665.html (334 words)

	IAS Deep Sky (Site not responding. Last check: 2007-10-14)
		It shows up better on the original image but almost disappears when the background is darkened to an acceptable aesthetic level.
		NGC 2397, the "Eskimo Nebula" planetary nebula in Gemini.
		The ring structure is clearly shown in this image of NGC 7009, an 8th mag.
	homepage.eircom.net /~irishas/deepsky.htm (394 words)

	The Saturn Nebula
		Orientation: N is up, with W to the left.
		The Saturn Nebula, NGC 7009, is in the constellation Aquarius.
		A shell of glowing gas surrounds a central hot star.
	www.noao.edu /wiyn/images/n7009.html (160 words)

	DOC: Uranometria chart 347 (Site not responding. Last check: 2007-10-14)
		The NGC records it as "a magnificent object, very bright, small and elliptic." Lord Rosse coined its popular name, Saturn, after the extending rays, or ansae, which project from the main disc on either side.
		In the 5th edition of Webb's Celestial Objects for Common Telescopes it is described as "planetary: somewhat elliptic: very bright for an object of this nature: pale blue; not well defined in 5.5-foot achromatic, but bearing magnifying more like a planet than a common nebula.
		Houston calls this nebula "one of the brightest planetaries in the heavens, and its oval 8th mag disk is easy to spot with small telescopes.
	members.fortunecity.com /auke/u300.htm (1292 words)

	[6.12] FUSE Observations of the Planetary Nebula NGC 7009 (Site not responding. Last check: 2007-10-14)
		[6.12] FUSE Observations of the Planetary Nebula NGC 7009
		The high-excitation planetary nebula NGC 7009 and its central star were observed by the Far Ultraviolet Spectroscopic Explorer (FUSE) satellite in the wavelength range 905-1187 Å\ at a spectral resolution of \lambda/\Delta\lambda ~15,000.
		Although IUE spectra show that stellar C IV 1550 is absent and N V 1240 is weak, the FUSE spectrum reveals a very strong O VI 1032-38 P-Cygni line profile with a terminal velocity of ~3500 km/sec.
	www.aas.org /publications/baas/v32n4/aas197/810.htm (210 words)

	Bruce Balick's Planetaries (Site not responding. Last check: 2007-10-14)
		NGC 650-1 (M 76 - Little Dumbbell Nebula); larger image
		NGC 6720 (M 57 - Ring Nebula); shells
		These files are distributed under the condition that they will not be used for profit, sold, or limited in their distribution in any way.
	astro.nineplanets.org /bb/pn.html (75 words)

	Pøehlídka planetárních mlhovin
		Jejich katalogová oznaèení jsou NGC 1535, NGC 3242 (Duch Jupitera),
		NGC 6543 (Koèièí oko), NGC 7009 (Saturn), NGC 2438, NGC 6772, Abell 39, NGC 7139, NGC 6781, and
		Klíèová slova: planetary nebula, ngc 1535, ngc 3242, ngc 6543, ngc 7009, ngc 2438, ngc 6772, abell 39, NGC 7139, NGC 6781, M97
	www.astro.cz /apod/ap030614.html (182 words)

	(IAAC) Obj: NGC 7009 (Saturn Nebula), M2 - Inst: 4.5" f/8 equatorial new (Site not responding. Last check: 2007-10-14)
		(IAAC) Obj: NGC 7009 (Saturn Nebula), M2 - Inst: 4.5" f/8 equatorial new
		(IAAC) Obj: NGC 7009 (Saturn Nebula), M2 - Inst: 4.5" f/8 equatorial newtonian
		Class: Constellation: Aqr Data: mag size Position: RA : DEC : Description: NGC 7009 is seen as a star at x36.
	www.visualdeepsky.org /netastrocatalog/msg01580.html (165 words)

	The Saturn Nebula (Site not responding. Last check: 2007-10-14)
		NGC 7009, PNG 037.7-34.5, PK 037-34.1, ARO 16
		Burnham's says of NGC 7009, "It was called by Lord Rosse the "Saturn" Nebula from the extending rays of ansae which project from the main disc on either side...
		I noted in my log that the Saturn nebula is about twice the size of NGC 7027 (a fine planetary in Cygnus detailed elsewhere) and much brighter.
	www.skyhound.com /sh/archive/aug1/NGC_7009.html (258 words)

	(IAAC) Obj: NGC 7009 - Inst: 8" F/6 Newton on alt-az mount (Site not responding. Last check: 2007-10-14)
		(IAAC) Obj: NGC 7009 - Inst: 8" F/6 Newton on alt-az mount
		Subject: (IAAC) Obj: NGC 7009 - Inst: 8" F/6 Newton on alt-az mount
		The central star of NGC 7009 was not seen by me although it should be bright enough at mag 11.5, but it is probably overwhelmed by the light of the nebula itself.
	www.visualdeepsky.org /netastrocatalog/msg00992.html (158 words)

	Astronomie.de - Starhopper
		Die Attraktion der heutigen Skytour ist der planetarische Nebel NGC 7009, der wegen seiner Form als Saturnnebel bekannt ist.
		NGC 7009 liegt etwa 1°,3 westlich von Nü Aqr und ist mit der Aufsuchkarte problemlos zu finden.
		NGC 7009 ist sehr hell, klein, und zeigt bei niedriger Vergrößerung eine auffallend grüne Färbung.
	www.astronomie.de /astropraxis/starhopper/aquarius/aquarius.htm (1239 words)

	NGC 7009 concept from the Astronomy knowledge base (Site not responding. Last check: 2007-10-14)
		NGC 7009 concept from the Astronomy knowledge base
		physical object > natural object > celestial body > nebula > H II region > gaseous nebula > expanding emission nebula > planetary nebula > NGC 7009
		Next planetary nebula: NGC 7027 Up: planetary nebula Previous planetary nebula: NGC 6826
	www.site.uottawa.ca:4321 /astronomy/NGC7009.html (72 words)

	NGC 7009, the Saturn Nebula (Site not responding. Last check: 2007-10-14)
		Planetary Nebula NGC 7009 (= H IV.1 = Bennett 127), type IV+VI, in Aquarius
		The Saturn Nebula was the first discoveries of William Herschel on September 7, 1782, when he started his great survey.
		Bill Arnett's Saturn Nebula NGC 7009 photo page, info page.
	www.seds.org /messier/xtra/ngc/n7009.html (168 words)

	08-13-99 Observing, UC Observatory, Lick (Site not responding. Last check: 2007-10-14)
		NGC 7009 Saturn Nebula - need 57X to detect this one.
		Doing the "audit" check of my images didn't show any trails but then again I didn't look at all the data.
		NGC 6826, blinking planetary (maybe it blinked off Hahaha!)
	www.observers.org /reports/99.08.13.3.html (300 words)

	(IAAC) Obj: NGC 7009 (Saturn nebula) - Inst: 9x63 binoculars (Site not responding. Last check: 2007-10-14)
		(IAAC) Obj: NGC 7009 (Saturn nebula) - Inst: 9x63 binoculars
		Subject: (IAAC) Obj: NGC 7009 (Saturn nebula) - Inst: 9x63 binoculars
		Next: (IAAC) Obj: NGC 7293 (Helix nebula) - Inst: 9x63 binoculars
	www.visualdeepsky.org /netastrocatalog/msg04447.html (103 words)

	Science Fair Projects - Saturn Nebula
		Or else, you can start by choosing any of the categories below.
		The Saturn Nebula (also known as NGC 7009) is a planetary nebula in the Aquarius constellation.
		NASA APOD - NGC 7009: The Saturn Nebula
	www.all-science-fair-projects.com /science_fair_projects_encyclopedia/NGC_7009 (238 words)

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