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08-01-07, 20:30
| #1 (permalink) |
| Cumulonimbus    Mensagens: 1,503 Registo: May 2006 Local: Lisboa |  Cometa McNaught (C/2006 P1) Já se avista o cometa McNaught no hemisfério norte. Terá um pico de visibilidade a partir de 11 de Janeiro.   Ao por-do-sol:  Ao nascer do sol:  C/2006 P1 (McNaught) Orbital Elements The following orbital elements are taken from MPC 57947: C/2006 P1 (McNaught) Epoch 2007 Jan. 20.0 TT = JDT 2454120.5 T 2007 Jan. 12.7990 TT MPC q 0.170728 (2000.0) P Q z -0.000079 Peri. 155.9765 +0.1268837 -0.1738867 +/-0.000048 Node 267.4150 +0.6753016 +0.7362661 e 1.000014 Incl. 77.8369 +0.7265454 -0.6539692 From 185 observations 2006 Aug. 7-Nov. 1, mean residual 0".4. Elements are also available for the current standard epoch: C/2006 P1 (McNaught) Epoch 2007 Apr. 10.0 TT = JDT 2454200.5 T 2007 Jan. 12.7983 TT MPC q 0.170741 (2000.0) P Q z -0.000066 Peri. 155.9780 +0.1268838 -0.1738854 +/-0.000048 Node 267.4146 +0.6753201 +0.7362495 e 1.000011 Incl. 77.8371 +0.7265282 -0.6539881 |
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08-01-07, 23:47
| #2 (permalink) |
| Administrador    Mensagens: 3,440 Registo: Sep 2005 Local: Melgaço / Braga | Re: Cometa McNaught (C/2006 P1) A elevação sobre o horizonte é baixíssima vou ver se este fim-de-semana consigo encontrar um local para contempla-lo
__________________ When the capital development of a country becomes a by-product of activities of a casino, the job is likely to be ill-done [John Maynard Keynes ]  Lamas de Mouro - Parque Nacional Peneda-Gerês www.meteomelgaco.com Meteorologia em Melgaço |
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09-01-07, 12:34
| #3 (permalink) |
| Cumulonimbus Mensagens: 1,503 Registo: May 2006 Local: Lisboa | Re: Cometa McNaught (C/2006 P1) Comet C/2006 P1 to make headlines in southern hemisphere http://groups.google.com/group/b-a-s...cd828ba528bbdb No tópico Geociências existem mais links e fotos... |
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09-01-07, 18:23
| #4 (permalink) |
| Cumulonimbus Mensagens: 1,503 Registo: May 2006 Local: Lisboa | Re: Cometa McNaught (C/2006 P1) Vejam a luz brilhante do "lado esquerdo" do sol... http://www.lmsal.com/solarsoft/latest_events/ "Comet McNaught C/2006P1 January 9, 2007, Sighting in Manassas, VA This is absolutely amazing!!! I just saw it in broad daylight at 10:30 am EST. It must be exceedingly bright, and it is huge. The nucleus appears to be about the size of the Sun disk. To see it, use a roof line to block out the Sun. It is about a hand span above the Sun (in the am), and a little to the left." The image shows the expected track of the comet through SOHO's coronagraph LASCO C3. The comet will appear in the field of view of C3 at around 10:00 UT (05:00 EDT) on January 12th (a few hours before perihelion) in the upper-left of the images and travel almost vertically down, exiting C3's field of view in the lower left at roughly 03:00UT on January 16th. Recent estimates of the comet's maximal brightness have ranged widely from magnitude +2.1 (about as bright as Polaris, the North Star) to a super-bright -8.8 (about 40 times brighter than Venus)! The lower the magnitude number, the brighter the object. The brightest stars in the sky are categorized as zero or first magnitude. Negative magnitudes are reserved for the most brilliant objects: the brightest star is Sirius (-1.4); the full Moon is -12.7; the Sun is -26.7. Current estimates put comet McNaught at magnitude 0 to -1, and it is still brightening. It could be -2 or -3 by the time it reaches LASCO's field of view. This means it will be brighter than comet NEAT or comet 96P/Machholz. In other words, this could be the brightest and most spectacular comet that SOHO has ever seen! |
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10-01-07, 21:25
| #5 (permalink) |
| Administrador Mensagens: 3,440 Registo: Sep 2005 Local: Melgaço / Braga | Re: Cometa McNaught (C/2006 P1) E confirma-se! Neste momento o cometa McNaught é o mais brilhante nos últimos trinta anos  Alguém já o viu? Eu não posso à hora que anoitece ainda estou no trabalho  Vou ver se Sábado o consigo observar http://cfa-www.harvard.edu/icq/brightest.html  Até de dia já é visível.... 
__________________ When the capital development of a country becomes a by-product of activities of a casino, the job is likely to be ill-done [John Maynard Keynes ] Lamas de Mouro - Parque Nacional Peneda-Gerês www.meteomelgaco.com Meteorologia em Melgaço |
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10-01-07, 22:28
| #6 (permalink) |
| Nimbostratus   Mensagens: 610 Registo: Nov 2005 Local: Vinhais (775m),Bragança/Queluz (125m), Lisboa | Re: Cometa McNaught (C/2006 P1) Que fixe, vou estar atento!
__________________ Viva o Nordeste! My blog Montesinho Natural http://www.pnmontesinho.blogspot.com/ |
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11-01-07, 01:10
| #7 (permalink) |
| Moderador   Mensagens: 3,447 Registo: Sep 2006 Local: Norte Madeira (538m) | Re: Cometa McNaught (C/2006 P1) A magnitude (ou brilho) do cometa nestes dias: (quanto mais negativo o valor, mais brilhante; para comparação a estrela mais brilhante do céu Sirius -1,4) 11 Jan: -1,5 12 Jan: -1,9 13 Jan: -2,0 14 Jan: -1,9 15 Jan: -1,6 16 Jan: -1,1 17 Jan: -0,6 18 Jan: -0,1 19 Jan: 0,4 |
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11-01-07, 23:58
| #8 (permalink) |
| Cumulonimbus Mensagens: 1,503 Registo: May 2006 Local: Lisboa | Re: Cometa McNaught (C/2006 P1) Bright comet visible to the naked eye http://reports.discoverychannel.ca/s...iscoveryReport Comet McNaught's in limelight http://www.news.com.au/heraldsun/sto...89-662,00.html New Comet brightest in 30 years http://www.chinadaily.com.cn/world/2...ent_781598.htm Hoje já vi o bicho, em Sintra, mas não tinha a máquina comigo....imperdoável. Este fim de semana não escapa  Entretanto... "We might loose power here in Seattle--a snowstorm with heavy-laden trees and power lines. If I'm down here I need to request that you save the C3 images during the comet passage on SOHO. Your own personal archive is a good idea because of this historical event. Some are beginning to think that a comet this large might even be called a rogue planet!"    |
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12-01-07, 02:43
| #9 (permalink) |
| Cumulonimbus Mensagens: 1,503 Registo: May 2006 Local: Lisboa | Re: Cometa McNaught (C/2006 P1) Haverá alguma razão "obscura" acerca deste cometa, pois não vejo nenhuma notícia na comunicação social acerca do cometa McNaught? É, no mínimo, estranho. Nem tampouco das notícias por todo o mundo em relação a várias cidades terem tido fugas de metano!!! Por toda a América, Londres, Itália .... Foi notícia nos jornais estrangeiros. E nos oceanos também.... E o sismo de 8.0 na Rússia ontem.... Devem estar a esconder-nos qq coisa ... ou acham, os meus caros colegas, que isto é normal nos dias de hoje? Deve ser o Portugal no seu melhor...  |
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12-01-07, 11:35
| #11 (permalink) | |
| Cumulonimbus  Mensagens: 1,931 Registo: Dec 2005 Local: Lisboa | Re: Cometa McNaught (C/2006 P1) Quote:
__________________ Scourge of the seven seas | |
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12-01-07, 11:56
| #12 (permalink) |
| Cumulonimbus Mensagens: 1,503 Registo: May 2006 Local: Lisboa | Re: Cometa McNaught (C/2006 P1) Reload.... Has Methane Started Venting From Seafloor? http://waynemadsenreport.com/ Gas Odor in New York City & New Jersey http://www.ny1.com/ny1/content/index...id=1&aid=65718 60 Birds Dead in Austin, Texas http://austin.bizjournals.com/austin...08/daily1.html Rio Rancho, New Mexico http://www.krqe.com/expanded.asp?REC...ews%5D= 19123 Half Moon Bay, California http://www.hmbreview.com/articles/20...ews/story9.txt Tube Station, London http://news.bbc.co.uk/2/hi/uk_news/e...on/6242871.stm Mobile, Alabama http://www.fox10tv.com/Global/story.asp?S=5907119 Blue Springs, Missouri http://news.yahoo.com/s/kmbc/20070108/lo_kmbc/10697312 Shopping center in West Australia http://www.thewest.com.au/default.as...ontentID=18131 Nashville, Tennessee http://wkrn.com/nashville/news/crews...ille/70031.htm Oxnard, California -- Freeway Closure http://www.kesq.com/Global/story.asp?S=5908554&nav=9qrx Bologna, Italy In Bologna 100 people were evacuated "for precaution" for a gastube leak this late eveneing. This afternoon happened a quake of 3,7 Richter there. In December nearby exploded a gas tube and killed 5 people. In Genova also, residents of a Palace were evacuated for a gas tube leak. This happened this early eveneing. (Source: Videotext of TV station Canale 5 of Mediaset Group,page 165,166) RADIATION LEAK at British Nuclear Power Station http://breakingnews.iol.ie/news/stor...10&p=zx64598y6 EXPLOSION: AEP Ohio Plant Blast http://www.alertnet.org/thenews/newsdesk/N08374377.htm CHEMICAL LEAK: http://www.nbc5i.com/news/10697624/detail.html BROKEN WATER MAINS: Adelaide, Australia http://www.abc.net.au/adelaide/stories/s1808388.htm Rochester, New York http://www.democratandchronicle.com/...8002/1002/NEWS |
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12-01-07, 17:26
| #14 (permalink) |
| Cumulonimbus Mensagens: 1,503 Registo: May 2006 Local: Lisboa | Re: Cometa McNaught (C/2006 P1) Comet McNaught to close stellar tour with twilight finale http://www.al.com/news/birminghamnew...260.xml&coll=2 Comet McNaught Puts on Show for Australia http://english.ohmynews.com/articlev...39638&rel_no=1 SOHO prepares for comet McNaught http://www.innovations-report.de/htm...cht-76794.html |
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12-01-07, 17:39
| #15 (permalink) |
| Cumulonimbus Mensagens: 1,503 Registo: May 2006 Local: Lisboa | Re: Cometa McNaught (C/2006 P1) Algumas notas de astrónomos amadores... "On Jan 14th, it hits perillion--and will be between the sun and the earth. If the sun reacts in a fasion similar to comet neat of Feb 18, 2003--activity of the sun will be high. This comes just before or during an Earth Sun Mars Pluto Galactic Center alignment on the 15th, and and Earth, Sun, Venus, Neptune alignment on the 18th. Maybe nothing will happen--or it could be quite "spectacular." Will the comet hit earth? Most likely not, although we may see some "debris." What always interests me about comets is that the large ones are ususally discovered by amatuers--which I find "interesting." As far as I know, McNaught is a blue comet. (it is not red as some claim--all photos taken of things near sunrise/sunset get a reddish tint.) Didn't the Sun send a big Solar Flare towards Neat when it passed the Sun last time ? If this happens with the McNaught Comet, Earth could be in the firing line. Plus if you take into account the 'Electrical Universe Theory'. And that Comet's tails point away from the Sun as they whip around it. The Earth will be in the 'Firing Line' of the tail as well. Which I understand to be energy coming IN towards the Sun from the Solar System's overall charged 'electrical energy'. (that is why the Comet's tails always point away from the Sun as the Comets do their rounds)" Continuamos num "blackout" informativo por parte dos jornais tugas (parece que só a RTP2 falou nisto ontem no Telejornal...que pouca gente vê)  |
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