- published: 28 Oct 2014
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A comet is an icy small Solar System body that, when passing close to the Sun, heats up and begins to outgas, displaying a visible atmosphere or coma, and sometimes also a tail. These phenomena are due to the effects of solar radiation and the solar wind upon the nucleus of the comet. Comet nuclei range from a few hundred metres to tens of kilometres across and are composed of loose collections of ice, dust, and small rocky particles. The coma and tail are much larger and, if sufficiently bright, may be seen from the Earth without the aid of a telescope. Comets have been observed and recorded since ancient times by many cultures.
Comets usually have highly eccentric elliptical orbits, and they have a wide range of orbital periods, ranging from several years to potentially several millions of years. Short-period comets originate in the Kuiper belt or its associated scattered disc, which lie beyond the orbit of Neptune. Long-period comets are thought to originate in the Oort cloud, a spherical cloud of icy bodies extending from outside the Kuiper belt to halfway to the next nearest star. Long-period comets are directed towards the Sun from the Oort cloud by gravitational perturbations caused by passing stars and the galactic tide. Hyperbolic comets may pass once through the inner Solar System before being flung out to interstellar space.
A great comet is a comet that becomes exceptionally bright. There is no official definition; often the term is attached to comets such as Halley's Comet, which are bright enough to be noticed by casual observers who are not actively looking for them, and become well known outside the astronomical community. Great comets are rare; on average, only one will appear in a decade. Although comets are officially named after their discoverers, great comets are sometimes also referred to by the year in which they appeared great, using the formulation "The Great Comet of ...", followed by the year.
The vast majority of comets are never bright enough to be seen by the naked eye, and generally pass through the inner Solar System unseen by anyone except astronomers. However, occasionally a comet may brighten to naked eye visibility, and even more rarely it may become as bright as or brighter than the brightest stars. The requirements for this to occur are: a large and active nucleus, a close approach to the Sun, and a close approach to the Earth. A comet fulfilling all three of these criteria will certainly be spectacular. Sometimes, a comet failing on one criterion will still be extremely impressive. For example, Comet Hale–Bopp had an exceptionally large and active nucleus, but did not approach the Sun very closely at all, yet it still became an extremely famous and well observed comet. Equally, Comet Hyakutake was a rather small comet, but appeared bright because it passed extremely close to the Earth.
Halley's Comet or Comet Halley (/ˈhæli/ or /ˈheɪli/), officially designated 1P/Halley, is a short-period comet visible from Earth every 75–76 years. Halley is the only known short-period comet that is clearly visible to the naked eye from Earth, and the only naked-eye comet that might appear twice in a human lifetime. Halley last appeared in the inner parts of the Solar System in 1986 and will next appear in mid-2061.
Halley's returns to the inner Solar System have been observed and recorded by astronomers since at least 240 BC. Clear records of the comet's appearances were made by Chinese, Babylonian, and medieval European chroniclers, but were not recognized as reappearances of the same object at the time. The comet's periodicity was first determined in 1705 by English astronomer Edmond Halley, after whom it is now named.
During its 1986 apparition, Halley's Comet became the first comet to be observed in detail by spacecraft, providing the first observational data on the structure of a comet nucleus and the mechanism of coma and tail formation. These observations supported a number of longstanding hypotheses about comet construction, particularly Fred Whipple's "dirty snowball" model, which correctly predicted that Halley would be composed of a mixture of volatile ices – such as water, carbon dioxide, and ammonia – and dust. The missions also provided data that substantially reformed and reconfigured these ideas; for instance, now it is understood that the surface of Halley is largely composed of dusty, non-volatile materials, and that only a small portion of it is icy.
The Solar System is the gravitationally bound system comprising the Sun and the objects that orbit it, either directly or indirectly. Of those objects that orbit the Sun directly, the largest eight are the planets, with the remainder being significantly smaller objects, such as dwarf planets and small Solar System bodies. Of the objects that orbit the Sun indirectly, the moons, two are larger than the smallest planet, Mercury.
The Solar System formed 4.6 billion years ago from the gravitational collapse of a giant interstellar molecular cloud. The vast majority of the system's mass is in the Sun, with most of the remaining mass contained in Jupiter. The four smaller inner planets, Mercury, Venus, Earth and Mars, are terrestrial planets, being primarily composed of rock and metal. The four outer planets are giant planets, being substantially more massive than the terrestrials. The two largest, Jupiter and Saturn, are gas giants, being composed mainly of hydrogen and helium; the two outermost planets, Uranus and Neptune, are ice giants, being composed mostly of substances with relatively high melting points compared with hydrogen and helium, called ices, such as water, ammonia and methane. All planets have almost circular orbits that lie within a nearly flat disc called the ecliptic.
Comet Lovejoy may refer to any of the five comets discovered by amateur astronomer Terry Lovejoy:
Actors: Catherine Pittman (miscellaneous crew), Cherie Smid (miscellaneous crew), Ken Hovgaard (miscellaneous crew), Robert Vince (writer), Cheryl Ladd (actress), Robert Vince (director), Audrey Wasilewski (actress), Robert Vince (producer), Obba Babatundé (actor), Richard Kind (actor), Jay Brazeau (actor), George Newbern (actor), Diedrich Bader (actor), Raymond W. Beal (miscellaneous crew), Jennifer Elise Cox (actress),
Plot: An all-new Disney holiday classic is born - Santa Paws 2: The Santa Pups. Starring a brand-new litter of the cutest talking pups ever - Hope, Jingle, Charity, and Noble - it's perfect for the whole family. When Mrs. Claus travels to Pineville, the playful Santa Pups stow away on her sled. Taking mischief to a whole new level, they begin granting joyful wishes to Pineville's boys and girls, but something goes terribly wrong - the Christmas spirit begins to disappear. Now the Santa Pups and Mrs. Claus must race to save Christmas around the world. From the creators of Disney Buddies, this magical, heartwarming tale is brimming with hope, cheer, and Christmas spirit.
Keywords: christmasActors: Patrika Darbo (actress), Robert Vince (producer), Tom McBeath (actor), Diedrich Bader (actor), Richard Riehle (actor), Wendi McLendon-Covey (actress), Peter New (actor), Eric Keenleyside (actor), Bill Cobbs (actor), Richard Kind (actor), Jason Connery (actor), Eddie Pepitone (actor), C. Ernst Harth (actor), Robert Vince (director), Robert Vince (writer),
Genres: Adventure, Family, Fantasy,Actors: Evan Chan (miscellaneous crew), Ken Hovgaard (miscellaneous crew), Robert Vince (writer), Luke Bradshaw (miscellaneous crew), Robert Vince (director), Claire Doré (miscellaneous crew), Richard Kind (actor), Christopher Lloyd (actor), Tim Conway (actor), Ellie Harvie (actress), Tom Bosley (actor), George Wendt (actor), Robert Vince (producer), Annie Wilkinson (miscellaneous crew), Laurie Watt (miscellaneous crew),
Plot: At the North Pole, Father Christmas and his chief dog Santa Paws worry as the whole toys processing system is threatened by the weakening of its magical power source, the icicle drawing on Christmas spirit. When harshly rebuked Puppy Paws, wishing there was no Christmas and he a regular dog, runs away to Fernfield and joins the 5 Buddies siblings, power falls beneath minimum. Chief Elf Eli finds his trace and travels in an attempt to save his and the world's Christmas spirit, but the six puppies face misunderstandings and the grim dog catcher Stan Cruge.
Keywords: abduction, boy, bully, cage, christmas, dog, father-son-relationship, kidnapping, party, rescueActors: John O'Hurley (actor), Edie McClurg (actress), Fred Willard (actor), Gladys Knight (actress), Fred Willard (actor), David Lawrence (composer), Brenda Song (actress), Harland Williams (actor), Paul Rodriguez (actor), Fred Savage (actor), Dylan Sprouse (actor), Cole Sprouse (actor), Jonathan Prince (writer), Jonathan Prince (actor), Jonathan Prince (writer),
Genres: Animation, Comedy,Actors: Judge Reinhold (actor), Kevin Pollak (actor), Blu Mankuma (actor), David Krumholtz (actor), Gary Jones (actor), Michael Dorn (actor), Fred Keating (actor), Tim Allen (actor), Peter Boyle (actor), Tim Allen (actor), Tim Allen (actor), Bob Bergen (actor), Art LaFleur (actor), Wendy Crewson (actress), Jay Thomas (actor),
Plot: Scott Calvin has been Santa Claus for the past eight years, and his loyal elves consider him the best Santa ever. But Santa's got problems (he's even mysteriously losing weight) and things quickly go south when he finds out that his son, Charlie, has landed on this year's "naughty" list. Desperate to help his son, Scott heads back home, leaving a substitute Claus to watch over things at the Pole. But when the substitute institutes some strange redefinitions of naughty and nice, putting Christmas at risk, it's up to Scott to return with a new bag of magic to try to save Christmas.
Keywords: absent-father, airplane, american-football, animatronic, character-name-in-title, children, christmas, christmas-party, christmas-tree, cupidActors: Venus Terzo (actress), Michael Dobson (actor), Andrea Libman (actress), Paul Dobson (actor), Dean Cain (actor), Andrew Francis (actor), Terry Klassen (actor), Terry Klassen (actor), Joseph Lawrence (actor), Richard Newman (actor), Gerard Plunkett (actor), Lee Tockar (actor), Kathleen Barr (actress), Lynda Boyd (actress), Cathy Weseluck (actress),
Genres: Animation, Family,Actors: Erica Shaffer (actress), Nikolai Kinski (actor), Fred Cobar (producer), Cameron Spencer (editor), Eva Langsdorff (actress), Joshua Davis (producer), Joshua Davis (director), Gil Ferrales (actor), Nathalie Olivia (actress), Monty Black (actor),
Plot: Scotland's west coast has the most dramatic coastline in Great Britain. There is Mull and Skye and many more smaller ones, all of exceptional beauty. The documentary covers not only the coastline but also some of the most interesting inner parts along the West Coast. Castles, beautiful gardens and breath taking landscape.
Genres: ,Actors: Richard Simmons (actor), Terry Klassen (actor), Colin Murdock (actor), Bob Newhart (actor), Jim Byrnes (actor), Paul Dobson (actor), Thomas Fritsch (actor), David Kaye (actor), Garry Chalk (actor), John Goodman (actor), Paul Dobson (actor), Matt Hill (actor), Matt Hill (actor), Eric Idle (actor), Lee Tockar (actor),
Plot: When Rudolph is born with a red nose he is bullied through out his younger years, but when Stormella closes her bridge of to the public and threaten to put Santa out of business for good this starts a chain of events that brings Rudolph from zero to hero don't miss it
Keywords: animal-in-title, animal-name-in-title, based-on-song, character-name-in-title, christmas, independent-film, rudolph-the-red-nosed-reindeerActors: Dan Castellaneta (actor), Dan Castellaneta (actor), Tom Kenny (actor), Kath Soucie (actress), Rob Paulsen (actor), Cam Clarke (actor), Jim Cummings (actor), Ginny McSwain (miscellaneous crew), Jim Latham (composer), Ken Pontac (director), Elise Robertson (miscellaneous crew), David Bleiman (editor), David Bleiman (director), Leopoldo Marino (miscellaneous crew), Ollie Green (miscellaneous crew),
Plot: Ozzie's a temp in Santa's workshop, but he wants to become a permanent helper, so he begins to make points by showing Santa how computers and automation can help production. But when the reindeers walk out, Ozzie's going to have to figure out how to get them back and the true meaning of Christmas.
Keywords: christmas, christmas-in-danger, family-relationships, stop-motion, surrealismActors: Bruce Campbell (actor), Robert G. Tapert (producer), Ted Raimi (actor), Sam Raimi (producer), Joseph LoDuca (composer), Bruce Campbell (actor), Bruce Campbell (producer), Josh Becker (director), Josh Becker (writer), John Cameron (actor), George Aguilar (actor), Gary Jones (actor), Deborah Foreman (actress), Ida Gearon (miscellaneous crew), Robert Grossman (actor),
Plot: In the seedy part of Los Angeles, a man who writes poetry has spent six months without leaving his apartment because of his paranoid delusions involving sadistic doctors, rappers, and spiders. A woman who seems to jinx things by wanting to help is dumped by her boyfriend and finds herself penniless on the streets, and soon runs afoul of a local gang. Due to a telephone glitch, the man calls her at a phone booth trying to dial a "talk line" and invites her to his place. There they must help each other to overcome their respective problems.
Keywords: agoraphobia, aluminum-foil, attempted-rape, baseball-bat, crazy-doctor, cult-film, depression, flashlight, garbage-truck, giant-spiderSubscribe to TRAILERS: http://bit.ly/sxaw6h Subscribe to COMING SOON: http://bit.ly/H2vZUn Subscribe to INDIE TRAILERS: http://goo.gl/iPUuo Like us on FACEBOOK: http://goo.gl/dHs73 Follow us on TWITTER: http://bit.ly/1ghOWmt Comet Official Trailer #1 (2014) - Justin Long, Emmy Rossum Romance Movie HD Set in a parallel universe, Comet bounces back and forth over the course of an unlikely but perfectly paired couples six-year relationship.
Super Comet - The longest night 65 million years ago the dinosaurs were wiped out by a gigantic asteroid. We could soon be next. We don't know when it will happen or where the asteroid will strike. We only know that it will happen - sometime - perhaps in 1000 years' time or perhaps tomorrow. Will it be the end of mankind? Through the eyes of a young astronomer we experience this catastrophic event. On discovering the asteroid on collision course with Earth, he tries to give a warning, but in vain. He survives, but this is just the beginning. The impact results in an eclipse of the sun leading to a global winter and the extinction of many life-forms. This documentary will depict the scientific background to the catastrophe, with all its consequences for mankind and the natural world. Thi...
The Top Ten Comets of All Time........ Original Music (C) 2010 A Great Comet is comet that becomes exceptionally bright. no official definition; often the term is attached to comets such as Halley's Comet, which are bright enough to be noticed by casual observers who are not actively looking for them, and become well known outside the astronomical community. Great Comets are rare; on average, only one will appear in a decade. While comets are officially named after their discoverers, Great Comets are sometimes also referred to by the year in which they appeared great, using the formulation "The Great Comet of ...", followed by the year. Size and activity of the nucleus Close perihelion approach Close approach to the Earth List of Great Comets Comet of 1680 The vast majority of comets ar...
Kirby Super Star gameplay/let'splay for the Super Nintendo! Subscribe to see every PB&Jeff video! ► http://bit.ly/13miG2p PeanutButterGamer & SpaceHamster let's play Kirby Super Star for the Super Nintendo! - Part 16: TO THE COMET! Check out our other gaming / video game channels and social stuff! PBG: → http://www.youtube.com/PeanutButterGamer → http://www.facebook.com/PeanutButterGamer → https://twitter.com/PeanutButterGmr → http://peanutbuttergamer.tumblr.com/ Jeff: → https://www.youtube.com/SpaceHamsterGames → https://www.facebook.com/SpaceHamsterGames → https://twitter.com/Jeff_like_Feff → http://spacehamsterg.tumblr.com/ Edited by Jack! (Superplaid64) → https://twitter.com/SuperPlaid64 Into art by Dan Jones! → https://twitter.com/CauseImDanJones Music by Zurachi! → https://...
Halley's Comet or Comet Halley (officially designated 1P/Halley) is the most famous of the periodic comets, and is visible from Earth every 75 to 76 years. Many comets with long orbital periods may appear brighter and more spectacular, but Halley is the only short-period comet that is clearly visible to the naked eye, and thus, the only naked-eye comet that might appear twice in a human lifetime. During its returns to the inner solar system, it has been observed by astronomers since at least 240 BC, but it was only recognized as a periodic comet in the 18th century when its orbit was computed by English astronomer Edmond Halley, after whom it is named. Halley's Comet last appeared in the inner Solar System in 1986 and will next appear in mid-2061. During its 1986 apparition, Halley's Co...
We know what would happen if a meteor collided with the Earth, but what about the sun? Can it even be hit? What Happened to the Spent Lunar Modules? - http://bit.ly/2cZz408 Sign Up For The Seeker Newsletter Here - http://bit.ly/1UO1PxI Read More: Sungrazing Comets: How They Dive-Bomb the Sun http://www.space.com/30315-sungrazing-comets-soho-sun-observatory-infographic.html "Sungrazing comets are comets that pass very close to the sun, sometimes to within a few thousand miles of its surface. The Solar and Heliospheric Observatory (SOHO) is a joint NASA/ESA mission to probe the corona, or outer layer of the sun's atmosphere." What Would Happen If a Massive Comet Crashed into the Sun? https://www.newscientist.com/article/dn27954-what-would-happen-if-a-massive-comet-crashe...
http://mocomi.com/ presents: What are comets? Comets are small celestial bodies. Scientists cannot seem to agree on whether comets are dirty snowballs or snowy dirtballs because of the mixture of ice, gas and dust that they comprise. They are different from asteroids because they are huge balls of ice and gas. Comets are said to originate from the Oort cloud, a group of icy bodies in the outer solar system. They have remained largely unchanged since they formed, which is why scientists are very fascinated with them and the ancient material they carry. Unlike meteoroids and asteroids, comets have been known to humanity since we were able to record our past- probably because of their distinct shape and tail and the fact that they would appear from nowhere and disappear just as mysteriously...
Comet core Inc is a new start up in Palo Alto, California, United States and is on the rise with it's flag-ship product: The Comet Smartphone. The Comet is Available for Pre-Orders at the Following Link: http://bit.ly/CometCoreIndieGogo early bird specials for 32gb and 64gb are $249-$289 After the early bird specials it will go up to $279-$329 Comet is designed with the core belief that smartphones are not merely devices, but extensions of who we are. Smartphones are becoming the primary way we reach out to people around the globe. This means your phone is not just a device but a custodian of your life and it's countless experiences. As a result, Comet is not merely a smartphone, but a true extension of who you are. For more information about CometCore Inc. Please visit us at the foll...
Хорошо, что у Comet всё хорошо. Единственная проблема - бронепробитие, в принципе, решаема. На канале каждый день выходит лёгкое и познавательное видео. Старые ролики никуда не исчезают и вы всегда сможете найти их на канале. А для быстрого поиска видео по интересующему вас танку воспользуйтесь рубрикатором: http://youtu.be/x6DX6QcOxFw Также буду вам рад в группе вконтакте: http://vk.com/amway921wot И на своей личной страничке: https://vk.com/p_sukhanov И в инстаграме: https://instagram.com/amway921wot/ Аккаунт в танках делать тут: http://adset.biz/25911
Eoduul haneuleul naladanineun
Jeobitnaneun byeoleul tagoseo
Gin jami deul geudae pumeuro
Nal deryeoga jul su itdamyron
Bamnat haneuleul dolgo dolado
Na geudaeman bol su otdamyeon
Nae daltomhan danramkkajido
Da beorigo nalaolragado joha
Jeo bicheul taraga heseongi dwieo jeo haneuleul nalabwa
Naemameul jeonhage geudaeege deryeoga
Byeoleul naeryeobwa geudaega boige deo bicheul taewobwa
Eonjenga sarajyeo beoreonda haedo nae mameul julgeoya
Kkaman eodumi milryeodeuleoseo
Gin bami to sijakdwondaedo
Na geudaeman gyeote itdamyeon
i bami nan museopji anha
Bamnat geuldaereul bogo to bwado
Nan jakkuman bogo sipeoseo
Nae daltomhan danjamkkajido
Da beoreogo nalaolragado joha
Jeo bicheul taraga hyeseoni dwieo jeo haneuleul narabwa
Nae mameul jeonhage geudaeege deryeoga
Byeoleul naeryeobwa geudaega bo igedeo bicheul taewobwa
Eonjenga sarajyeo beorinda haedo nae mameul julgeoya
Manyak geudaega himi deul tae myeon
Bam haneuleul olryeodabwayo
Na eonjena geudae boneun got
Geu goseuro nalaolragago sipeo
Jeo bicheul taraga deouk deo nopi jeo haneuleul nalabwa
Nae mameul jeonhage geudaeege deryeoga
Nareul jityeobwa eonjena yeonwonhi geudaeman saranhae
Eonjenga sarajyeo beorilji molrado nae maeumeul
Da alge ya hyeseongeul bomyeon nae sarangeul algeoya
Geudaega eodie itdeul eonjena bichwojultenikka
어두운 하늘을 날아다니는
저 빛나는 별을 타고서
긴 잠이 든 그대 품으로
날 데려가 줄 수 있다면
밤낮 하늘을 돌고 돌아도
나 그대만 볼 수 있다면
내 달콤한 단잠까지도
다 버리고 날아올라가도 좋아
저 빛을 따라가 혜성이 되어 저 하늘을 날아봐
내 맘을 전하게 그대에게 데려가
별을 내려봐 그대가 보이게 더 빛을 태워봐
언젠가 사라져버린다 해도 내 맘을 줄거야
까만 어둠이 밀려들어서
긴 밤이 또 시작된대도
나 그대만 곁에 있다면
이 밤이 난 무섭지 않아
밤낮 그대를 보고 또 봐도
난 자꾸만 보고 싶어서
내 달콤한 단잠까지도
다 버리고 날아올라가도 좋아
저 빛을 따라가 혜성이 되어 저 하늘을 날아봐
내 맘을 전하게 그대에게 데려가
별을 내려봐 그대가 보이게 더 빛을 태워봐
언젠가 사라져버린다 해도 내 맘을 줄거야
만약 그대가 힘이 들 때 면
밤 하늘을 올려다봐요
나 언제나 그대 보는 곳
그 곳으로 날아올라가고 싶어
저 빛을 따라가 더욱 더 높이 저 하늘을 날아봐
내 맘을 전하게 그대에게 데려가
나를 지켜봐 언제나 영원히 그대만 사랑해
언젠가 사라져버릴지 몰라도 내 마음은
다 알거야 혜성을 보면 내 사랑을 알거야