|
List Of Great Comets
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 during certain appearances are bright enough to be noticed by casual observers who are not looking for them, and become well known outside the astronomical community. Great comets appear at irregular, unpredictable intervals, on average about once per 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. Causes 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 thi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Von Einem Schrecklichen Vnd Wunderbarlichen Cometen So Sich Den Dienstag Nach Martini Dieses Lauffenden M
The term ''von'' () is used in German language surnames either as a nobiliary particle indicating a noble patrilineality, or as a simple preposition used by commoners that means ''of'' or ''from''. Nobility directories like the ''Almanach de Gotha'' often abbreviate the noble term ''von'' to ''v.'' In medieval or early modern names, the ''von'' particle was at times added to commoners' names; thus, ''Hans von Duisburg'' meant "Hans from he city ofDuisburg". This meaning is preserved in Swiss toponymic surnames and in the Dutch or Afrikaans ''van'', which is a cognate of ''von'' but does not indicate nobility. Usage Germany and Austria The abolition of the monarchies in Germany and Austria in 1919 meant that neither state has a privileged nobility, and both have exclusively republican governments. In Germany, this means that legally ''von'' simply became an ordinary part of the surnames of the people who used it. There are no longer any legal privileges or constraints ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Comet Halley
Halley's Comet or Comet Halley, officially designated 1P/Halley, is a short-period comet visible from Earth every 75–79 years. Halley is the only known short-period comet that is regularly visible to the naked eye from Earth, and thus the only naked-eye comet that can 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 periodic returns to the inner Solar System have been observed and recorded by astronomers around the world since at least 240 BC. But it was not until 1705 that the English astronomer Edmond Halley understood that these appearances were reappearances of the same comet. As a result of this discovery, the comet is named after Halley. During its 1986 visit to the inner Solar System, 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 f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Comet Of 1811
The Great Comet of 1811, formally designated C/1811 F1, is a comet that was visible to the naked eye for around 260 days, the longest recorded period of visibility until the appearance of Comet Hale–Bopp in 1997. In October 1811, at its brightest, and when it was 1.2 AU from Earth, it displayed an apparent magnitude of 0, with an easily visible coma. Discovery The comet was discovered March 25, 1811 by Honoré Flaugergues at 2.7 AU from the Sun in the now-defunct constellation of Argo Navis. After being obscured for several days by moonlight, it was also found by Jean-Louis Pons on April 11, while Franz Xaver, Baron Von Zach was able to confirm Flaugergues' discovery the same night.. The first provisional orbit was computed in June by Johann Karl Burckhardt. Based on these calculations, Heinrich Wilhelm Matthäus Olbers made a prediction that the comet would go on to become extremely bright later that year. Observations From May to August, the comet's position ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Comet Of 1744
The Great Comet of 1744, whose official designation is C/1743 X1, and which is also known as Comet de Chéseaux or Comet Klinkenberg-Chéseaux, was a spectacular comet that was observed during 1743 and 1744. It was discovered independently in late November 1743 by Jan de Munck, in the second week of December by Dirk Klinkenberg, and, four days later, by Jean-Philippe de Chéseaux. It became visible with the naked eye for several months in 1744 and displayed dramatic and unusual effects in the sky. Its absolute magnitude — or intrinsic brightness — of 0.5 was the sixth highest in recorded history.Kidger, M. Comet Hale-Bopp Light Curve', NASA Jet Propulsion Laboratory, accessed 17-11-08 Its apparent magnitude may have reached as high as -7, leading it to be classified as a Great Comet. This comet is noted especially for developing a 'fan' of six tails after reaching its perihelion. Discovery The comet was discovered on November 29, 1743, by Jan de Munck at Middelburg, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Comet Of 1680
C/1680 V1, also called the Great Comet of 1680, Kirch's Comet, and Newton's Comet, was the first comet discovered by telescope. It was discovered by Gottfried Kirch and was one of the brightest comets of the seventeenth century. Overview The comet was discovered by Gottfried Kirch, a German astronomer, on 14 November 1680 (New Style), in Coburg, and it became one of the brightest comets of the seventeenth century – reputedly visible even in daytime – and was noted for its spectacularly long tail. Passing 0.42 au from Earth on 30 November 1680, it sped around an extremely close perihelion of on 18 December 1680, reaching its peak brightness on 29 December as it swung outward. It was last observed on 19 March 1681. JPL Horizons shows the comet has roughly a barycentric orbital period of years. the comet is about from the Sun. While the Kirch Comet of 1680–1681 was discovered by – and subsequently named for – Gottfried Kirch, credit must also be given to Eusebio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Comet Of 1618
The year 1618 in science and technology involved some significant events. Astronomy * March 8 – May 15 – Johannes Kepler formulates the third law of planetary motion. * July 21 – Pluto (not known at this time) reaches an aphelion. It next comes to aphelion in 1866. * Johann Baptist Cysat, Swiss Jesuit geometer and astronomer and one of Christoph Scheiner's pupils, becomes the first to study a comet through the telescope and gives the first description of the nucleus and coma of a comet. * September 6–25 – The Great Comet of 1618 is visible to the naked eye. Biology * Fortunio Liceti's ''De spontaneo Viventium Ortu'' supports the theory of spontaneous generation of organisms. Medicine * The College of Physicians of London publishes the ''Pharmacopœia Londinensis''. ''See:'' Births * April 2 – Francesco Maria Grimaldi, Italian physicist, discoverer of the diffraction of light (died 1663) * Jeremiah Horrocks, English astronomer (died 1641) Deaths * June 6 – S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Comet Of 1577
The Great Comet of 1577 (official designation: C/1577 V1) is a non-periodic comet that passed close to Earth during the year 1577 AD. Having an official designation beginning with "C" classes it as a non-periodic comet, and so it is not expected to return. In 1577, the comet was visible to all of Europe, and was recorded by many contemporaries of the time, including the famous Danish astronomer Tycho Brahe and Turkish astronomer Taqi ad-Din. From his observations of the comet, Brahe was able to discover that comets and similar objects travel above the Earth's atmosphere. The best fit using JPL Horizons suggests that the comet is currently about 320 AU from the Sun (based on 24 of Brahe's observations spanning 74 days from 13 November 1577 to 26 January 1578).NASAJPL Small-body database browserplot and approximate distance. (needs Java) Observations by Brahe and others Using all the records to estimate the orbit, it seems that the perihelion was on October 27. The first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Comet Of 1556
The Great Comet of 1556 (designated C/1556 D1 in modern nomenclature) was a comet that first appeared in February 1556, and which was observed throughout much of Europe. The comet appears to have been seen in some places before the end of February, but it was not generally observed until the middle of the first week in March. Its apparent diameter was equal to half that of the Moon, and the tail was said to resemble "the flame of a torch agitated by the wind." Cornelius Gemma (the son of Gemma Frisius) said that the head of the comet, when it first appeared, was as large as Jupiter, and that its color resembled that of Mars. The course of the comet of 1556 was observed by Paul Fabricius, a mathematician and physician at the court of Charles V, Holy Roman Emperor. Charles V comet The Great Comet of 1556 is called the comet of Charles V. When the Emperor first caught sight of it he stood aghast, and exclaimed: "By this dread sign my fates do summon me". Charles had long meditat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Comet Of 1264
The Great Comet of 1264 (C/1264 N1) was one of the brightest comets on record. It appeared in July 1264 and remained visible to the end of September. It was first seen during the evenings after sunset, but appeared in its greatest splendor in weeks afterward, when it became visible during the mornings in the northeastern sky, with the tail perceived long before the comet itself rose above the horizon. The head of the comet seemed like an obscure and ill-defined star, and the tail passed from this portion of it like expanded flames, stretching forth towards the mid-heavens to a distance of one hundred degrees from the nucleus. The comet of 1264 was described to have been an object of great size and brilliancy. The comet's splendor was greatest at the end of August and the beginning of September. At that time, when the head was just visible above the eastern horizon in the morning sky, the tail stretched out past the mid-heaven towards the west, or was nearly 100° in length. The ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
X/1106 C1
X/1106 C1, also known as the Great Comet of 1106, was a great comet that appeared on 2 February 1106, and was observed around the world from the beginning of February through to mid-March. It was recorded by astronomers in Wales, England, Japan, Korea, China and Continental Europe. It was observed to split into many pieces, forming the Great Comet of 1882 and Comet Ikeya–Seki as well as over 4000 small sungrazing comets observed by the SOHO space telescope. It is a member of the Kreutz Group, known as Subfragment I, a split from an earlier large (~150 km) comet that progressively fragmented under the influence of the Sun. Observations Britain A brief note in the Welsh manuscript known as the ''Brut y Tywysogion'' reads: 1106 Yn y vlwydyn honno y gwelat seren anryued y gwelet yn anuon paladyr oheuni yn ol y chefyn ac o prafter colofyn y veint a diruawr oleuat idaw, yn darogan yr hyn a vei rac llaw: kanys Henri, amherawdyr Rufein, gwedy diruawryon vudugolyaetheu a chre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caesar's Comet
Caesar's Comet (also ''Sidus Iulium'' ("Julian Star"); ''Caesaris astrum'' ("Star of Julius Caesar, Caesar"); Comet Caesar; the Great Comet of 44 BC; Naming of comets, numerical designation C/−43 K1) was a seven-day Great comet, cometary outburst seen in July 44 BC. It was interpreted by Romans as a sign of the Apotheosis#Ancient Rome, deification of Assassination of Julius Caesar, recently assassinated dictator, Julius Caesar (100–44 Before Christ, BC). It was perhaps the most famous comet of antiquity. Based on two dubious reports from China (May 30) and Rome (July 23), an infinite number of orbit determinations can fit the observations, but a retrograde orbit is inferred based on available notes.The Comet of 44 B.C. and Caesar's Funeral Games (John T. Ramsey, A. Lewis Lichtp. 125/ref> The comet approached Earth both inbound in mid-May and outbound in early August.Cometography Vol p. 22by Gary W. Kronk It came to perihelion (closest approach to the Sun) on May 25, −43 at a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ephorus
Ephorus of Cyme (; grc-gre, Ἔφορος ὁ Κυμαῖος, ''Ephoros ho Kymaios''; c. 400330 BC) was an ancient Greek historian known for his universal history. Biography Information on his biography is limited. He was born in Cyme, Aeolia, and together with the historian Theopompus was a pupil of Isocrates in rhetoric. He does not seem to have made much progress as a speaker, and at the suggestion of Isocrates himself he took up literary composition and the study of history. According to Plutarch, Ephorus declined Alexander the Great's offer to join him on his Persian campaign as the official historiographer. His son Demophilus followed in his footsteps as a historian. Main works Ephorus' ''magnum opus'' was a set of 29 books recounting a universal history. The whole work, edited by his son Demophilus—who added a 30th book—contained a summary description of the Sacred Wars, along with other narratives from the days of the Heraclids up until the taking of Peri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
_boven_Rotterdam_-_11028-A-B_-_Museum_Rotterdam.jpg "Click for more on -> List Of Great Comets")
.png "Click for more on -> Great Comet Of 1811")
