Showing posts with label Halley's Comet. Show all posts
Showing posts with label Halley's Comet. Show all posts

13 September 2010

Meteor/Meteorite News 13SEP2010

Cunnamulla rock at centre of dispute declared a meteorite

Courier Mail - ‎2 分前‎
by Sophie Elsworth SPACE rock: Cunnamulla Constable Ashley Thompson with the rock. it has now officially been declared a meteorite. Source: The Courier-Mail ...

Phoenix Lander Discovers Mars' History of Water

DailyTech - ‎22 分前‎
One meteorite in particular crystallized about 170 million years ago, which is considered recent in Mars' geological time, and contains carbonates with ...

Aristotle described comet centuries ago

eWorld Post (blog) - ‎6 分前‎
He mentioned in the work that around the same time the meteorite fell “a comet was visible in the west.” Aristotle was also the teacher of Alexander the ...

First sighting of Halley's comet pushed back two centuries

PhysOrg.com - ‎2 時間前‎
Graham suggests Anaxagoras probably actually predicted that rocks might fall from the sky rather than a particular meteorite. Anaxagoras made the prediction ...

How microbes could help colonize Mars

Mother Nature Network - ‎14 分前‎
One acid-loving, iron-oxidizing microbe proved capable of perhaps using material from a Murchison meteorite, according to a 2009 study by Gronstal and ...

Today In History

eTaiwan News - ‎11 時間前‎
2007 - Peruvian astronomers say that a meteorite crashed near Lake Titicaca over the weekend, a rare occurence that left an elliptical crater and magnetic ...

"Patagonia Meteor" by Stephane Guisard (TWAN)

The photographer was lucky enough to capture a fireball (very bright meteor) above the mountains and right below Sirius, the brightest star of the entire ...

Astro Bob blog: Researcher finds new meteor crater without leaving ...

An Italian researcher makes the discovery of a lifetime. Check out the newly- found meteor crater from your desktop. ...

Asteroids & Earth

WHYY
from meteor and asteroid dust. Today is the 51st anniversary of the 1st man-made object to impact the moon Luna 2. All this and more on this week's Sky Talk ...

What is "shocked quartz"?

Helium
When new meteors hit or when older locations are scouted, this rarest of phenomena is one of the more prized trophies that meteor hunters and scientists ...

El cometa Halley veraneó en la Tierra en el siglo V a.C.

Publico.es - ‎1 時間前‎
Cinco siglos antes de Cristo algunos escritores clásicos aseguran que un gran meteorito se estrelló en el norte de Grecia, según dejaron patente en sus ...

Gregos terão visto o Halley em 466 a. C.

Diário de Notícias - Lisboa - ‎12 時間前‎
O Norte da Grécia terá sido atingido por um meteorito no período temporal entre os anos de 466 e 468 a. C. e, segundo um artigo publicado no Journal of ...


11 May 2010

Halley's Comet video - P1 11MAY2010

Halley's Comet - P1


posted on YouTube by KurdstanPlanetarium (6 views) 2010年05月10日
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 Comet became the first to be observed in detail by spacecraft, providing the first observational data on the construction of the comet nucleus and the mechanism of tail formation. These observations supported a number of longstanding hypotheses about comet construction, particularly Fred Whipple's "dirty snowball" model, but also provided data which substantially reformed and reconfigured these ideas.

Discovered by prehistoric (observation);
Edmond Halley (recognition of periodicity)
Orbital characteristics (Epoch 2449400.5)
(February 17, 1994)
Aphelion 35.1 AU
(December 9, 2023)
Perihelion 0.586 AU
last perihelion: February 9, 1986
next perihelion: July 28, 2061
Semi-major axis 17.8 AU
Eccentricity 0.967
Orbital period 75.3 a
Inclination 162.3°
Physical characteristics
Dimensions 15×8 km[3], 11 km (mean)
Mass 2.2 × 1014 kg
Mean density 0.6 (estimates range from 0.2 to 1.5 g/cm³)
Sidereal rotation
period 2.2 d (52.8 h) (?)
Albedo 0.04
Apparent magnitude 28.6


Halley's Comet - P2

posted on YouTube by KurdstanPlanetarium (22 views) 2010年05月10日

Halley's Comet - P3

posted on YouTube by KurdstanPlanetarium (7 views) 2010年05月10日
Halley's Comet

06 May 2010

Meteor/Meteorite New 6MAY2010

PLANETARY SOCIETY, INDIA: ETA AQUARIDS METEOR SHOWER 2010

By PLANETARY SOCIETY, INDIA
Freinds like previous months of 2010 this month of may also has a exciting celestial event happening for the enthusiasts. Yes like last year you can see Aquarids Meteor Shower occuring this year too. ...


Halley's Comet meteor shower peaks Thursday
Space.com: It's been 24 years since Halley's Comet last passed through the inner solar system, but remnants from the icy wanderer will light up the dawn sky ...

Eta Aquarid Meteor Shower to Peak Thursday Morning - Remnants of Halley's ...
Gather.com - ‎53 分前‎
Halley's comet last past by earth in 1986, but remnants from Haley's comet will be visible for the next few days in the Eta Aquarid Meteor Shower. ...

Earthsky Tonight—Moon, Jupiter, Eta Aquarid meteors before dawn
Berthoud Recorder - ‎22 時間前‎
The best viewing time for the Eta Aquarid meteor shower will probably be tomorrow (Thursday) morning, from about 3:00 am until dawn. ...

Найден фрагмент метрового метеорита, пролетевшего над США в апреле
Компьюлента - ‎7 時間前‎
Вскоре Киллгоры нашли 300-граммовый фрагмент метеорита. «Его ценность в том, что он практически «чист» и пробыл на Земле всего ничего», — поясняет Марвин. Ещё один кусок метеорита, найденный местным фермером, исследовали в Висконсинском университете . Образец содержит следы соединений магния, ...

Słynna kometa pozostawi rój meteorów
Dziennik - ‎17 時間前‎
Według International Meteor Organization (IMO) Eta Aquarydy mogą w tym roku osiągnąć aktywność nawet 85 zjawisk na godzinę. Jest to związane z faktem, ...

Bright light puzzles residents
KRQE - ‎2010 年5月4日‎
A lot of people also thought they saw a meteor just after 5 am Monday, and they were right. Video from Sandia National Laboratories and a different sky ...

Strange Light In Sky Still Unknown
WLWT Cincinnati - ‎8 時間前‎
"In all the other videos that we've seen of meteor strikes and fireballs going through the sky, it's never been at that trajectory, it's usually the other ...

Látványos meteorokat csíphetünk el a hajnali égen
Origo - ‎12 時間前‎
A jelenség csak néhány tizedmásodpercig látható, közben a test anyaga elfogy, és a meteor avagy hullócsillag kialszik. A meteorrajokkal kapcsolatban ...

Buzz on Outer Space
Buzz Log (blog) - ‎6 時間前‎
That's what the NASA Mars Meteorite Research Team decided they really, really wanted to know. And that's why the researchers reopened a controversial 14 ...

Star-gazing brings Vatican's chief astronomer 'closer to God'
Sin Chew Jit Poh - ‎21 時間前‎
In Consolmagno's office cum lab, he is currently studying a meteorite that he described proudly as the "only vestige of a star that disappeared 4.5 billion ...

El Paso skycam records large meteorite
KRQE.com - ‎2010年5月4日‎
A skycamera in El Paso, Texas, recorded the basketball-sized meteorite that lit up the early morning sky Tuesday. Video from LunarMeteoriteHunters.blogspot.com ...

Professur als Geschenk
Allgemeine Zeitung Mainz - ‎2 時間前‎
Thomas Berg beschäftigte sich aus interdisziplinärer Perspektive mit Meteoriten und der Entstehung des Sonnensystems. Torsten Lauer bearbeitete ein neues ...

Meteorite victims to receive help from government
Jakarta Post - ‎21 時間前‎
... agency is planning to provide support to three families in Duren Sawit district in East Jakarta, whose houses were struck by a meteorite last week. ...

В солнечно-земную физику вторглись неопознанные субъекты...
ГТРК Новосибирск - ‎21 時間前‎
Кстати, она единственная в мире зафиксировала уникальное явление – падение тунгусского метеорита. Обсерватория в Патронах и сейчас выполняет важные государственные задачи, например в области космических исследований, обороноспособности страны. Но все это под угрозой... В одной половине здания ...

21 October 2009

Meteor/Meteorite News- METEORS FROM HALLEY'S COMET 20OCT09

METEORS FROM HALLEY'S COMET: Earth is entering a stream of dusty debris from Halley's Comet, and this is causing the annual Orionid meteor shower. If forecasters are correct, the shower will peak on Wednesday morning, Oct. 21st, with dozens of meteors per hour. The best time to look is during the dark hours before local dawn.

For the past three years, Orionid rates have been unusually high, with reports of 60 or more meteors per hour. Researchers believe this is a result of some very old and rich debris from Comet Halley drifting across Earth's orbit. Computer models of the debris suggest that it is still in the neighborhood, so the trend of "good Orionids" could continue in 2009. Visit http://spaceweather.com
for photos and updates.