Geometry.Net - Basic_C: Comets & Meteors

Meteor Observing Calendar
A concise listing of all meteor showers that can be seen throughout the year.
http://comets.amsmeteors.org/meteors/calendar.html
Comets And Meteors
comets and meteors. The cycles tail. comets are much bigger than meteorsand they do not have to enter our atmosphere to be seen. comets
http://nfo.edu/astro/comet.htm

Extractions: The cycles of the Sun, Moon and Stars are very regular, and we know where they will be for hundreds of years. Not everything in space is like that, though. The bright tail of a comet and the streak of a meteor are two of the most beautiful surprises in nature. Meteors, asteroids, and comets are not really separate things, just different forms of the same thing - space debris (rocks). Very large chunks of rock in space are called asteroids. Thousands of asteroids orbit between Mars and Jupiter in the Asteroid belt. Meteoroids are smaller chunks of rock in space. When they enter our atmosphere they start to burn, and are called meteors. Meteors streak across the sky, blazing bright for only a few seconds. What we call "shooting stars" are actually meteors. As the Earth moves in its orbit around the Sun, it occasionally crosses the stream of dust left by a comet, and this causes a meteor shower. Sometimes meteors are large enough to survive the fiery trip through the atmosphere, and actually hit the ground. These are called meteorites. Most meteorites are small and they cause very little damage when they hit. Most of them land in water, which covers 2/3 of our planet. There are only two documented cases of a person being hit by a meteorite.
WWW Links For Asteroids, Comets & Meteors.
meteors, Meteorites Cosmic Collisions. Barringer Meteor Crater meteors and impacts. comets and Meteor Showers (Gary W. Kronk).
http://supernova7.apsc.csi.cuny.edu/astlinks.html
Asteroids, Comets & Meteors - A To Z Home's Cool Homeschooling Astronomy
Asteroids, comets meteors. Asteroids. Asteroids Deadly Impact Sorry to clutteryour desk in your absence, but I need you on these mysterious cases.
http://www.gomilpitas.com/homeschooling/explore/asteroids.htm

Extractions: Gifts for Smarter Kids, Toddlers through 12 Year Olds. A to Z Home's Cool Homeschooling Explorations 4 Kids I am Ann Zeise , your guide to the best and most interesting and useful sites and articles about home education on the web. Search Home New Kids Links One Exploration A Day Contact Ann Zeise ... Free Newsletter
Comets And Meteors
comets and meteors. UPDATED ON 25/01/2003. Comet C/2002 V1 (NEAT).25/01/2003 The brightness was reported as mag 6.2 on Jan 23. Now
http://www.bas.asn.au/astronomy/comets.htm

Extractions: Comments below in early January We have another interesting comet. Like C/2002 X5 , C/2002 V1 has a highly inclined orbit and is well placed for observations from the Southern Hemisphere. It was discovered in early November by the NEAT program and has shown significant brightening in the later half of Dec.. The magnitudes (in the ephemeris and discussion below) are based on a H value (Abs. magn) of 6.5 and G = 15. I know I don't have to say how uncertain this is! The comet is heading west and losing altitude. By the 31st the comet may be 4th magnitude but now setting only 1 hour after sunset.
StudyWorks! Online : Asteroids, Comets And Meteors
Asteroids, comets and meteors. Links. meteors are asteroids or comets that enterthe Earth's atmosphere producing a bright streak of light in the sky.
http://www.studyworksonline.com/cda/content/article/0,,EXP201_NAV4-45_SAR1249,00

Extractions: Courtesy of IHW Asteroids, also called minor planets, are just that, tiny planets. Ceres, the largest known asteroid is only 930km across. Comets are a frozen mixture of ices and dust that travel around the sun in a highly elliptical orbit. Meteors are asteroids or comets that enter the Earth's atmosphere producing a bright streak of light in the sky. Meteorites are the bits that make it to the Earth's surface. Check out the following sites to learn more about these small celestial objects. ASTRONOMY ONLINE! CONTENTS NEXT >>
StudyWorks! Online Asteroids, Comets And Meteors
Asteroids, comets and meteors. Links. meteors are asteroids or comets that enterthe Earth's atmosphere producing a bright streak of light in the sky.
http://www.studyworksonline.com/cda/content/article/0,,NAV2-78_SAR1249,00.shtml

Extractions: Courtesy of IHW Asteroids, also called minor planets, are just that, tiny planets. Ceres, the largest known asteroid is only 930km across. Comets are a frozen mixture of ices and dust that travel around the sun in a highly elliptical orbit. Meteors are asteroids or comets that enter the Earth's atmosphere producing a bright streak of light in the sky. Meteorites are the bits that make it to the Earth's surface. Check out the following sites to learn more about these small celestial objects. Bigrock Worried about meteoroids colliding with Earth? Bigrock keeps taps on near-earth objects. Comet Shoemaker-Levy Images, computer simulations, movies, and info about Shoemaker-Levy 9's impact with Jupiter. The Comet's Tale Comets: their origins, history, orbits and even the killers among them.
Loading L4U IPAC
comets meteors/EVOLUTION (V3007). Summary, comets meteors Discusses how cometsand meteors are the big bits of dirt, rock and ice that inhabit our Universe.
http://drc.sd62.bc.ca/DT000205.HTM
Asteroids, Comets, And Meteors Theme Page
CLN menu page provides links to science curricular resources and instructional materials(lesson plans) in the specific topic of asteroids, comets and meteors.
http://www.cln.org/themes/asteroids.html

Extractions: Asteroids, Comets, and Meteors Theme Page This "Theme Page" has links to two types of resources related to the study of asteroids, comets and meteors. Students and teachers will find curricular resources (information, content...) to help them learn about this topic. In addition, there are also links to instructional materials (lesson plans) which will help teachers provide instruction in this theme. Please read our Asteroid and Comet Impact Hazards "Although the annual probability of the Earth being struck by a large asteroid or comet is extremely small, the consequences of such a collision are so catastrophic that it is prudent to assess the nature of the threat and prepare to deal with it." This NASA site provides basic information about such possibilities including government reports and FAQs about impacts, asteroids and comets. Build Your Own Comet Advice and a recipe for building a six inch comet. The site also provides basic information about comets. Constellation Prizes In this lesson plan, grade 6-12 students "learn about meteors, meteorites, and comets by reading and discussing a related New York Times article about the Leonid meteor showers and the methods that scientists are using to learn from these meteors. Students then create and observe a comet in their classroom."
COMETS And METEORS
The summary for this Japanese page contains characters that cannot be correctly displayed in this language/character set.
http://www.zcr.jp/~tada/misc/comet.html
Comets And Meteors
comets and meteors. Leonid fireball (Nov. 17, 1998) blazes over AnzaBorregoDesert, CA; Geminid meteor streaking from radiant in Gemini, Dec.
http://skyphoto.com/comets/Default.htm
Comets And Meteors
comets and meteors.
http://library.trinity.wa.edu.au/subjects/science/astronomy/comet.htm
Comets & Meteors (David's Astronomy)
David's Astronomy Pages comets meteors. Observations comets, This pagesummarises observations and images of comets and meteors. For
http://www.richweb.f9.co.uk/astro/comets_meteors.htm

Extractions: More images of Hyakutake Hyakutake was discovered in early morning of 1996-Jan-31 by Yuji Hyakutake. It passed earth at 18 million miles distance on 1996-Mar-27. Speeding across the celestrial sky at up to 16 deg/day it passed through Bootes Mar-21 to 24, past Polaris Mar-25/26, between Camelopardalis and Cassiopeia Mar-27 to 30 and then into Perseus where it began to slow Mar-31 to Apr-16 and then into Aries Apr-17 to Apr-31.
July 30, 1999, Hour 1: Asteroids, Comets, And Meteors - Oh My!
crash into the Earth followed by a giant never mind? Well, scientists meetingthis week at the International Asteroids, comets and meteors Conference at
http://www.sciencefriday.com/pages/1999/Jul/hour1_073099.html

Extractions: Hour One: Asteroids, comets, and meteors - oh my! Remember all the fuss last year over an asteroid that might crash into the Earth followed by a giant "never mind?" Well, scientists meeting this week at the International Asteroids, Comets and Meteors Conference at Cornell University remember it too. On this hour of Science Friday, we'll bring you up to date on current efforts to identify and track potential threats from space, as well as some research into the nature of asteroids, meteors, and comets. (image courtesy Don Davis - NASA) A group of astronomers has proposed a new scale for assessing the threat a space object poses to the planet. The Torino Scale, the space equivalent of the Richter Scale for earthquakes or the Beaufort Scale for storms, rates space objects on a scale of to 10 according to their kinetic energy and their likelihood of hitting the Earth. A zero on the scale means that an object poses no threat, while a ten means probable global catastrophe. The astronomers hope that the new scale may help quiet future media feeding frenzies over announcements of impact risks. We'll talk about the idea, and about the research that went into it.
Comets And Meteors Resources - Directories - Links
Home / Keyword Search / Subject Index / Reference Desk / StudentCenter Academic Info Astronomy comets, meteors Asteroids.
http://www.academicinfo.net/astrocomets.html
Astro-shop - Observing Comets, Asteroids, Meteors, And The Zodiacal Light
Translate this page Observing comets, Asteroids, meteors, and the Zodiacal Light Stephen J. Edberg,David H. Levy Dieses Buch vermittelt Ihnen auf einfache Art, wie erfolgreiche
http://www.astro-shop.com/Katalog/Info/301235.html
SmallBodies In The Solar System
The main distinction seems to be that comets have more volatiles and more Millionsof meteors bright enough to see strike the Earth every day (amounting to
http://seds.lpl.arizona.edu/nineplanets/nineplanets/smallbodies.html

Extractions: Small Bodies T he title The Nine Planets is somewhat misleading. In addition to the planets and their satellites the solar system contains a large number of smaller but interesting objects. T here are thousands of known asteroids and comets and undoubtedly many more unknown ones. Most asteroids orbit between Mars and Jupiter . A few (e.g. 2060 Chiron) are farther out. There are also some asteroids whose orbits carry them closer to the Sun than the Earth (Aten, Icarus, Hephaistos). Most comets have highly elliptical orbits which spend most of their time in the outer reaches of the solar system with only brief passages close to the Sun. T he distinction between comets and asteroids is somewhat controversial . The main distinction seems to be that comets have more volatiles and more elliptical orbits. But there are interesting ambiguous cases such as 2060 Chiron (aka 95 P/Chiron) and 3200 Phaethon and the Kuiper Belt objects which seem to share some aspects of both categories. A steroids are sometimes also referred to as minor planets or planetoids (not to be confused with "lesser planets" which refers to Mercury and Pluto ). Very small rocks orbiting the
Comets-Meteors-Asteroids
comets and meteors. The Differences. A question I often get asked, either by emailor when I give talks, is what is the difference between a comet and a meteor.
http://www.maa.mhn.de/Comet/differ.html

Extractions: Comets and Meteors The Differences A question I often get asked, either by email or when I give talks, is what is the difference between a comet and a meteor. Sometimes the question also includes an asteroid. The remainder of this page is dedicated to providing both descriptions and movies of each object in an attempt to help clarify the differences. These bodies are primarily composed of ice and dust, causing some astronomers to refer to them as "dirty snowballs." They typically move through the solar system in orbits ranging from a few years to several hundred thousand years. Comets are not on fire. As they near the sun, the sun's heat melts the comet's ices and releases dust particles which are most evident as the comet's tail. Comets rarely come within a few million miles of Earth and, thus, have a slow apparent motion across our sky. Typical comets remain visible for periods of several weeks up to several months. Example #1: This movie of C/1997 T1 (Utsunomiya) was obtained by Tim Puckett on 1997 October 7. It was obtained with a 60-cm reflector and shows the comet's motion over a period of about 75 minutes . The field of view is 9 x 9 arc minutes or about one-third the diameter of the full moon.
Comets Asteroids Meteors Meteorites Astroblemes Craters
INTERNATIONAL CONFERENCE. CAMMAC2002 comets Asteroids meteors Meteorites AstroblemesCraters. VINNYTSIA, UKRAINE. September 23 - 29, 2002. Organized by,
http://cammac.univ.kiev.ua/

Extractions: Radigeochemistry of Environment of NASU Scientific and Local Organizing Committees of the International Conference "COMETS, ASTEROIDS, METEORS, METEORITES, ASTROBLEMES, CRATERS" - "CAMMAC-2002" are pleased to invite you to attend the Conference "CAMMAC-2002", which will be held in Vinnitsa (Ukraine) September 23 - 29, 2002. The Conference will be held at Vinnitsa Mikhajlo Kotsuybinskij Pedagogical University: Vinnitsa city, street Ostroz'skogo, 32 map Topics of the Conference: New results on comets, asteroids, meteors, meteorites, astroblemes and craters on the surfaces of the planets, their satellites and the small bodies of the Solar System: physics, dynamics, interrelations, evolution, origin, space missions and some selected problems of astrophysics. Sponsors and Organizers: Vinnitsa Pedagogical University
Comets And Meteors
comets meteors. Comet Ikeya Zhang (2002 A1) meets Andromeda. In Hollandwe had to wait till the end of March for Ikeya Zhang. Because
http://www.astropage.nl/comets.html

Extractions: Comet Ikeya Zhang (2002 A1) meets Andromeda In Holland we had to wait till the end of March for Ikeya Zhang. Because of the low position, lightpollution made it a difficult job both visual and for photo's. Normal "Dutch conditions" are humid, but this week we had eastern winds, dry and cold, witch gave us clear skies to the horizons. I made these pictures on the 5th of April using a f 5.6 300 mm. tele. The Film: Fuji 400 Superia exposed 4 min.. Due to a bad battery I had to make these pics in the middle of my home town !! Lucky shot ! Comet LINEAR 2001 A2 We were so unlucky when this comet showed up. Bad weather conditions, its low position and a full moon made it almost impossible to observe or make pictures of it. But on the 17th of July I had a small chance. Just the northern part of Holland had a clear sky, but only for a couple of hours !! 300 mm. f 5.6 tele, 11 min. . Konica Centuria 400 So I quickly took two pictures (no more film !) with a 300 mm. tele. The result is not bad, despite very moist conditions. Because only the northern part of Holland had a tiny chance, I think I'm one of the few (only ?) dutch amateurs with pics of this comet. After the 17th we had bad weather again for 2 weeks or so. During this period Linear 2001 A2 became a minor dot in the sky again..... Lucky shot !

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