... July 3, 1995 . The Great Nebula in Orion . ... Explanation: The Great Nebula in Orion, M42, can be found on the night sky just below and to the left of the easily identifiable belt of three stars in the popular constellation Orion. ... Some stars we can see here partially obscured by the nebula, are only about 100,000 years old - just babies compared to the 5 billion (5,000,000,000) years of our Sun. ... We keep an archive of Astronomy Pictures of the Day. ...

Astronomy Picture of the Day . The Great Nebula in Orion . ... Credit Copyright: Stefan Seip Explanation: The Great Nebula in Orion is a colorful place. ... Long exposure, digitally sharpened images like this, however, show the Orion Nebula to be a busy neighborhood of young stars, hot gas, and dark dust . The power behind much of the Orion Nebula (M42) is the Trapezium - four of the brightest stars in the nebula. ... Publications with keywords: Orion - M 42 . ... Dust of the Orion Nebula . ...

... July 13, 1999 . The Flame Nebula in Infrared . ... Explanation: What lights up the Flame Nebula? Fifteen hundred light years away towards the constellation of Orion lies a nebula which, from its glow and dark dust lanes, appears like a billowing fire. ... Rather the bright star Alnitak , the easternmost star in the Belt of Orion visible to the nebula's right, shines energetic light into the Flame that knocks electrons away from the great clouds of hydrogen gas that reside there. ...

... Observing . ... Solar Observing . ... April 3 (SUN) - Solar Observing, Central Park , Manhattan . ... APRIL'S SKY . ... Lecture Series at the American Museum of Natural History The Amateur Astronomers Association is proud to present an astronomy lecture series from October through May each year for our members and the .. ... The€аAmateur Astronomers Association of New York€аwas organized in 1927 to promote the study of Astronomy, emphasizing its cultural and inspirational value. ...

... GOODS unites extremely deep observations from NASA's Great Observatories, Spitzer , Hubble , and Chandra , ESA's Herschel and XMM-Newton , and from the most powerful ground-based facilities, to survey the distant universe to the faintest flux limits across the electromagnetic spectrum. ... The space-based observations are complemented by ground-based imaging and spectroscopy, including extensive commitments of ESO and NOAO observing time. ... 2010-04-10: Deep VLA 1.4 GHz data for GOODS-North . ...

Photon Scattering: Basic Principle of Photon Scattering . Audio Narration is available . No Scattering: Photon Source and Detector . ... For optical photons, scattering goes as wavelength to the -4 power. In the case of blue photons compared to red photons, this means that blue photons are about 10 times more likely to get scattered than red photons. ... Watch the blue photons scatter away from the detector . ... Interstellar dust make stars appear redder than they really are . ...

Общая Астрономическая Конференция > Практика > Астрономический наблюдательно-информационный портал > Звездные ассоциации - рассеянные скопления (поиск и описание) .. L1641W - новое рассеянное скопление в Большой туманности Ориона (Great Orion Nebula) в созвездии Орион (Orion) .. ... Просмотр полной версии : L1641W - новое рассеянное скопление в Большой туманности Ориона (Great Orion Nebula) в созвездии Орион (Orion) .. ...

home publications > mercury . SEARCH ASP SITE: Match ALL words Match ANY word . ... SIRTF: NASA?s Next Great Observatory . ... The next major infrared mission is the Space Infrared Telescope Facility (SIRTF), a cryogenic space telescope set to launch in early 2003. SIRTF was originally conceived to be the fourth and final installment of NASA?s Great Observatories, a fleet of space telescopes designed to give astronomers a view of the universe across the entire electromagnetic spectrum. ...

... ATNF Home . About ATNF . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Australia Telescope Online Archive (ATOA) . ... Parkes | ... Australia Telescope 20GHz Survey . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... The Secret Inner Life of the Orion Nebula . ...

... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . ... Travel to E-ELT Armazones . ... Survey Telescopes . ... Star Clusters . ... Stars@ESO . ... Using the VISIR instrument on ESOБЂ™s Very Large Telescope (VLT), astronomers have imaged a complex and bright nebula around the supergiant star Betelgeuse in greater detail than ever before. This structure, which resembles flames emanating from the star, is formed as the behemoth sheds its material into space. ...

... SUN MOON MERCURY VENUS MARS, JUPITER SATURN . Sun . ... The Sun's Heartbeat . ... Can a 0.2-second pulse from a magnetar put out as much energy as the Sun does in 250,000 years? ... A giant magnetar flare is incredibly bright and emits as much radiation energy as the Sun does in hundreds of thousands of years. Get instant access to subscriber content on Astronomy.com! ... Much more! ... If you are already registered on Astronomy.com, please log in below. ...

... Bad Astronomy . Misconceptions . ... Bad Astronomy : "We're light years more advanced than our competition!" ... Even the closest astronomical object, the Moon, is 400,000 kilometers away! ... A beam of light will travel 9,500,000,000,000 kilometers in one year. This distance is defined as a light year ; the distance light travels in a year. ... This is another example of Bad Astronomy; like a light year, a parsec is a unit of distance, not time (to be specific, it equals 3.26 light years) . ...

... As an experiment, I made some three-color images of Messier 42, more commonly known as the Great Nebula of Orion. ... green enhanced . ... halfsize or fullsize . ... Each image is a ``true color'' composite of three monochromatic images, in which the red, green, and blue intensities each correspond to the intensity of one of the original images. ... The HST image is assembled from different filters than mine: red is Nitrogen [II] at 6583 , green is H-alpha at 6563 , and blue is O [III] at 5007 . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Colin Johnston . ... This submillimetre-wavelength image of the region surrounding the reflection nebula M78 made with the Atacama Pathfinder Experiment (APEX) telescope (overlaid on a view of the same region in visible light) shows the position of interstellar dust grains (orange) to show where new stars are being formed.( ... Here you will find the latest news and views from the fascinating worlds of astronomy and space exploration. ...

... GSAOI Home . ... Science . ... Deep imaging at J , H , and K is required to identify all stellar objects, brown dwarfs, and planetary mass objects in the central region of the Orion Nebula Cluster down to masses comparable to that of Jupiter. This is required to establish the initial mass function, i.e., the number of stars of each mass that have formed, in this region of intense massive star formation. ... The fields of the GSAOI detectors are shown as four green squares in each frame. ...

... The issue of notes for one pound and for ten shillings were to circulate "As fully as sovereigns and half-sovereigns are current and shall be legal tender in the United Kingdom for the payment of any amount" . Why not the Bank of England, with all their experience and expertise? The Bank felt that large numbers of low-value notes wouldn't be "safe" unless they were printed on special hand-made paper. ... Both notes were the same size and were printed on only one side of paper. ...

... There are preliminary series of photometric and radio spectral observations of the above-mentioned stars, archival data on the light curves of the stars, results of the search for OH and H 2 O maser emission in IRAS point sources that possess the IR parameters similar to Miras. ... The aim is a detailed study of the maser emission variability. ... In 1996-1997, astronomical observations of Mira Ceti-type stars (miras) were carried out in three spectral ranges: optical, infrared, and radio. ...

Astronomy Discussion Forums . ... Great Night 10/24 . ... Post Message | ... Temp in the mid to low 40's, slight wind, pretty clear. ... Very good view of the Double Cluster. ... Normally the best contrast is achieved with the 32mm or 25mm ep. ... This cluster was lower to the horizon and thus now quite as clear as the Double Cluster. ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... This report provides background information about the Armagh Observatory and a summary of the Observatory's principal achievements in research and other areas during calendar year 2000. Staff at the Observatory have attracted external income totalling ? 222,000 (?212,000 in external research grants) during Financial Year 2000/2001 (1 April 2000 - 31 March 2001), and published more than 30 papers in refereed scientific journals during 2000, a fraction of their total research output. ... 2000 . ...

... The interstar media . The interstar media includes the rarefied substance (gas and dust) electromagnetic radiation, the space beams, neutrino and other kinds of materia which fill the space (see the circulation of gas and dust in the Universe ). ... The nebula of the Alter . ... The gas-dust nebulas. ... The gas nebulas galaxical are shining due to the transformation of the shot waved (ultraviolet) radiation of the very hot stars located in the nebula or near it into the visible light. ...