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Topic: SN 1572

	SN 1572
		SN 1572 er det moderne navn for Tycho Brahes stella nova.
		SN står for supernova og 1572 er årstallet.
		november 1572, og den italienske astronom Francesco Maurolico observerede den muligvis også før Brahe i det samme år.
	www.all2know.com /da/wikipedia/s/sn/sn_1572.html (118 words)

	Encyclopedia: SN 1572 (Site not responding. Last check: 2007-10-17)
		SN 1572 or Tycho's Nova was a supernova in the constellation Cassiopeia, one of the few supernovae visible to the naked eye.
		11 Anna Greta Henriksdotter Poromaa, född 4 augusti 1816 i Junosuando, Pajala sn, död 13 juni 1894 i Junosuando, Pajala sn.
		Han låg i garnison i Ingermanland 1654-57, och förlänades 1663 på livstid ett hemman i Andiala, Vörå sn, samt på livstid ett hemman i Knivsundby, Kronoby sn.
	www.nationmaster.com /encyclopedia/SN-1572 (1290 words)

	Encyclopedia: 1572 (Site not responding. Last check: 2007-10-17)
		Tycho Brahe observes the supernova SN 1572 in Cassiopeia
		Jeanne dAlbret Jeanne dAlbret (January 7, 1528 – June 9, 1572) was Queen of Navarre from 1555 to 1572, wife of Antoine de Bourbon, duke of Vendome and mother of Henry IV of France.
		Engraving of the humours from Thurneisser Quinta Essentia, Leipsig, 1572.
	www.nationmaster.com /encyclopedia/1572 (4184 words)

	Encyclopedia: SN 1604 (Site not responding. Last check: 2007-10-17)
		Approximately three hours before the visible light from SN 1987a reached the Earth, a burst of neutrinos was observed at two separate neutrino observatories, which had originally been built to study the solar neutrino problem.
		The precursor to SN 1987a was a blue supergiant presumed to have a mass of about 20 solar masses.
		The supernova remnant formed by debris from SN 1987a is one of the most-studied astronomical objects today.
	www.nationmaster.com /encyclopedia/SN-1604 (1116 words)

	ESA - Space Science - Science News Release
		This area, two degrees across, is centred on the area where the famous Tycho's Supernova, also known as SN 1572A, exploded in 1572.
		The region lies in the constellation of Cassiopeia in the northern sky.
		On 11 November 1572, Tycho Brahe noticed a star in the constellation Cassiopeia that was as bright as the planet Jupiter (which was in the night sky in Pisces).
	www.esa.int /esaSC/Pr_25_2004_s_en.html (1635 words)

	Supernova (Site not responding. Last check: 2007-10-17)
		of Kepler's Supernova, SN 1604.]] A supernova is a type of stellar explosion which appears to result in the creation of a new star upon the celestial sphere.
		While most Type II supernova show very broad emission lines which indicate expansion velocities of many thousands of km/s, some have relatively narrow features which may be produced by the interaction of the ejecta with circumstellar material; these are called Type IIn, where the "n" stands for "narrow".
		A few supernovae, such as SN 1987K and 1993J, appear to change types: they show lines of hydrogen at early times, but, over a period of weeks to months, become dominated by lines of helium.
	hallencyclopedia.com /Supernova (2662 words)

	Sn Brussels Airlines
		SN 1987A was a supernova in the Large Magellanic Cloud, a nearby dwarf galaxy.
		Approximately three hours before the visible light from SN 1987A reached the Earth, a burst of neutrinos was observed at three separate neutrino observatories (Kamiokande II, IMB and Baksan).
		It was the second supernova to be observed in a generation (after SN 1572 seen by Tycho Brahe in Cassiopeia).
	www.artistbooking.com /trips/188/sn-brussels-airlines.html (742 words)

	The SNR images.
		The outer shock is the blast wave from the SN explosion moving into the circumstellar medium.
		The SN was observed by the Danish astronomer Tycho Brahe in 1572.
		The SN explosion was observed by the ancient Chineese and Japaneese astronomers in the year 1181AD.
	www.astro.psu.edu /users/green/Main/main5.html (2532 words)

	No Title (Site not responding. Last check: 2007-10-17)
		This cloud of gas is the remnant from the SN explosion.
		Brahe recorded a SN in 1572 and Kepler observed one in 1604.
		The Crab Nebula possesses a pulsar that is presumably the remnant from the SN explosion of a massive star.
	www-astro.physics.uiowa.edu /~ri/modern_spr01/lect17b/lect17.html (584 words)

	[No title] (Site not responding. Last check: 2007-10-17)
		Supernovae are designated by the year they are discovered in with an accompanying letter to indicate the order of discovery in a given year: e.g., SN 1987A was the first supernova of year 1987.
		For example in 2001 we reached SN 2001ke: this the 291st supernova of the year.
		SN 1572 (the letter is omitted if there was only one SN discovered) is called Tycho since Tycho observed it.
	www.physics.unlv.edu /~jeffery/astro/sne/desig.html (141 words)

	SN 1572 - Wikipedia, the free encyclopedia
		The supernova was probably of Type Ia, in which a white dwarf star has accreted matter from a companion until it reaches the Chandrasekhar limit and explodes.
		Tycho G's current velocity is perhaps the strongest evidence that it was the companion star to the white dwarf, as it is traveling at a rate of 136 km/s, which is more than forty times faster than the mean velocity of other stars in its stellar neighbourhood.
		It has an apparent diameter of 3.7 arc minutes, and is located approximately 10,000 light years from our Solar system.
	en.wikipedia.org /wiki/SN_1572 (425 words)

	SN 1604 - Encyclopedia, History, Geography and Biography
		Supernova 1604, also known as Kepler's Supernova or Kepler's Star, was a supernova in the Milky Way, in the constellation Ophiuchus.
		It was the second supernova to be observed in a generation (after SN 1572 seen by Tycho Brahe in Cassiopeia).
		No further supernovae have since been observed with certainty in the Milky Way, though many others outside our galaxy have been seen.
	www.arikah.com /encyclopedia/SN_1604 (266 words)

	[No title]
		It seems that (apart from the SN event having triggered the contraction of the protosolar nebula) mainly two SN events are believed to make terrestrial impact: 1) the hypothetic SN claimed to have caused the Permo-Triassic extinction (see some lectures of Cs.
		SN 5-9 occurred in Chinese records as "guest stars" and sometimes modern astronomers are not sure if they were supernovae, novae or comets.
		SN 5 from 1006 is also generally accepted, although it was slightly faint.
	www.rmki.kfki.hu /~lukacs/permend.htm (9343 words)

	Swedes - pafg55 - Generated by Personal Ancestral File
		Henrik Mogensen Rosenvinge was born in of, Helsingor, Frederiksborg, DK.
		Cornelisdatter was buried on 15 Jun 1602 in Sankt Petri, Malmö, Malmöhus, SN.
		Mette Jacobsdatter was born in 1530 in of, Malmö, Malmöhus, SN.
	ourworld.cs.com /susannebrown/f/pafg55.htm (394 words)

	Supernovae, Neutron Stars & Pulsars
		SN 1006 in Centaurus in the southern sky.
		SN 1054 - The Crab Supernova in Taurus recorded by Chinese and Native American astronomers.
		SN 1572 - Tycho's Supernova, studied in detail by Tycho Brahe.
	casswww.ucsd.edu /public/tutorial/SN.html (1867 words)

	Cassiopeia (Site not responding. Last check: 2007-10-17)
		It is a double star with a companion of 9.0 mag situated at a distance of 2.3" from the main component.
		In 1572 a supernova in Cassiopeia was observed by Tycho Brahe (then known as Tycho's Star), which could be observed with the naked eye for 16 months.
		The remnant of supernova SN 1572 is a faint expanding nebula, a source of radio radiation.
	www.avastronomyclub.org /const/cas.htm (243 words)

	The Radio Detection of SN 1968D in NGC 6946
		SN 1968D thus represents the second RSN to be detected in NGC 6946 and only the fourth intermediate-age SN to have ever been detected in the radio.
		However, since the monitoring observations were centered on SN 1980K, at 280" E and 165" S of the nucleus of NGC 6946, the resolution and sensitivity of the maps at the position of SN 1968D were seriously degraded by bandwidth smearing at 20 cm and by primary beam attenuation at 6 cm.
		SN 1968D may have been recovered by ROSAT from observations of NGC 6964, but the field is too confused in X-rays to be certain (Schlegel 1994b).
	www.dean.sbc.edu /hyman.html (2724 words)

	supernova
		A few supernovae, such as SN 1987K and 1993J, appear to change types: they show lines of hydrogen at early times, but, over a period of weeks to months, become dominated by lines of helium.
		SN 1994D in the NGC 4526 galaxy (bright spot on the lower left).
		If only one supernova is observed in a given year (as with SN 1006), no letter suffix is added to the name.
	www.sfcrowsnest.com /scifinder/a/Supernova.php (3885 words)

	pubs.pfw.rtf
		Soft X-Ray Emission from the Lupus Loop and SN 1006 Supernova Remnants, P.F. Winkler, D.R. Hearn, J.A. Richardson and J.M.Behnken 1979, Astrophys.
		X-Ray Iron-line Emission from the SN 185 Remnant, P.F. Winkler, 1979, in Proceedings of the HEAO Science Symposium, NASA CP-2113, p.
		High-Velocity Emission in Young Supernova Remnants: SN 1006 and SN 1572, R.P. Kirshner, P.F. Winkler, and R.A. Chevalier 1987, Astrophys.
	community.middlebury.edu /~winkler/pubs.pfw.html (1743 words)

	[No title]
		SN 1987A is in a dwarf galaxy the Large Magellanic Cloud that is a satellite of our galaxy.
		Historical Supernovae The Crab Nebula SN (SN 1054), Tycho (SN 1572), Kepler (SN 1604), Cas A (SN 1667?): and all the other good old supernovae.
		SN 1885A The first modern supernova: it was in Andromeda A. The LMC supernova: closest extragalactic supernova.
	www.physics.unlv.edu /~jeffery/astro/sne (901 words)

	No Title
		Brahe recorded a SN in 1572 and Kepler observed one in 1604.
		It is the closest SN to be studied with modern instruments.
		The Crab Nebula possesses a pulsar that is presumably the remnant from the SN explosion of a massive star.
	www.etsu.edu /physics/ignace/astro/corpses/lect17.html (584 words)

	CalendarHome.com - 1572 - Calendar Encyclopedia (Site not responding. Last check: 2007-10-17)
		Year 1572 was a leap year starting on Tuesday (link will display the full calendar) of the Julian calendar.
		January 16 - Thomas Howard, 4th Duke of Norfolk is tried for treason for his part in the Ridolfi plot to restore Catholicism in England.
		November 11 - Tycho Brahe first observes the supernova SN 1572 in Cassiopeia.
	encyclopedia.calendarhome.com /cgi-bin/encyclopedia.pl?p=1572 (761 words)

	Tycho Brahe - Crystalinks
		On November 11, 1572, Tycho observed (from Herrevad Abbey) a very bright star which unexpectedly appeared in the constellation Cassiopeia, now named SN 1572.
		King Frederick II of Denmark and Norway, impressed with Tycho's 1572 observations, financed the construction of two observatories for Tycho on the island of Hven in Oresund.
		Tycho also worked in the area of weather prediction, produced astrological interpretations of the supernova of 1572 and the comet of 1577, and furnished his patrons Frederick II and Rudolph II with nativities and other predictions (thereby strengthening the ties between patron and client by demonstrating value).
	www.crystalinks.com /brahe.html (1929 words)

	Article
		A Type II SN is similar except it gains this excess of matter by being born a heavyweight contender.
		The novae and SN were in a class of their own, so different from the apparition of comets and the relatively common rain of meteors.
		The SN of 1572 was documented by Tycho Brahe and considerably added to his renown.
	www.tenagraobservatories.com /article.html (2553 words)

	Hubble Heritage
		There are two different types of supernovas: one formed by the thermonuclear explosion of an accreting white dwarf star, and the other formed by the rebound explosion following the collapse of the core of a massive star.
		Of the six known supernovas in our Milky Way in the last 1000 years, SN 1006, and SN 1572 (Tycho's supernova) are of the former type, while SN 1054 (Crab Nebula), SN 1181 and SN 1680?
		(Cassiopeia A) are of the latter type, and SN 1604 (Kepler's supernova) is the only one for which the type is as yet unknown.
	heritage.stsci.edu /2004/29/caption.html (531 words)

	Supernova Remnants \| Guide \| Digital Universe \| Hayden Planetarium
		The most studied supernova in history, SN 1987A is the latest in a series of explosions observed by astronomers.
		Aside from SN 1054, Arab astronomers observed one in 1006 and European astronomers observed SN 1572 (Tycho's supernova Cassiopeia A) and SN 1604 (Kepler's supernova in Serpens).
		For the next 383 years, no supernovae were seen, until February 23, 1987, when a “new star,” SN 1987 A, appeared in the Large Magellanic Cloud.
	www.haydenplanetarium.org /universe/duguide/mwg_snr.php (450 words)

	White Dwarf Halos
		In the remaining cases, the exceedingly high Type Ia SN rate predicted for the present time also indicates that the mass fraction of the Galactic halo in the form of WDs should be much smaller than that suggested from microlensing experiments.
		The only supernovae observed in our Galaxy in the last 1000 yr that clearly were Type Ia SNs have been SN 1006 and SN 1572 (van den Bergh and Tammann 1991), and their progenitors did not belong to the halo population.
		In that case, since formation of most clouds would precede ejection by Type Ia SNs of a major fraction of the iron mass and the filling factor of the clouds should be small, the case would resemble that of a gas-free halo.
	ecf.hq.eso.org /~ralbrech/sepdec97apjl/975392.html (3624 words)

	Other Supernovae images
		In my effort to make the Bright Supernova pages be the principle place on the to find information on SN, I have on this page placed links to all of the "other" SN images which I have encountered.
		All of the SN on this page are indexed the same way that the SN on the other pages are referenced, so clicking on the name of a Supernova will automatically take you directly to that specific SN.
		Visual Discovery of SN 1995V in NGC 1087 by Robert Evans
	www.rochesterastronomy.org /snimages/snother.html (261 words)

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