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| | Hawaiian Astronomical Society - Orion |
 | | Apollo was disgusted with his sister and thought the only way to solve this problem was to kill Orion. | | | Image on the left is a drawing through an 8" telescope at 40x by Jere Kahanpää. | | | 10k GIF NGC2022 (Best 76) is a planetary nebula located on a line between Betelgeuse (Alpha Orionis) and Meissa (Lambda Orionis), about 2/3 of the way to the latter. |
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http://www.hawastsoc.org/deepsky/ori
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| | Spaceflight Now | Breaking News | Odds of planet formation in Orion Nebula reduced |
| | Orion's massive central stars must be even younger, O'Dell contends, because they have created an intense radiation environment that has essentially shut down star formation in the nebula. | | | Since then this has been generalized to the Copernican principle: There is nothing special in time or space about Earth's position in the universe. | | | If planets form considerably faster than scientists currently think, then the percentage of stars that develop planetary systems could be substantially higher, O'Dell acknowledges. |
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http://spaceflightnow.com/news/n0105/03orion
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| | phot-03-01.html |
| | One of the great strengths of the VLT is its comprehensive instrumentation programme, and the team intends to carry out a detailed spectral analysis of the very faintest objects in the cluster, using the VLT VIMOS and NIRMOS multiobject spectrometers, as these become available. | | | Orion 114-426 disk - that is thirty times bigger than our present-day Solar System - may already be showing signs of forming its own proto-planetary system. | | | Point sources are detected at the 3-sigma level (central pixel above background noise) of 20.5, 19.2, and 18.8 magnitude in the J |
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http://www.eso.org/outreach/press-rel/pr-2001/phot-03-01.html
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| | SPACE.com -- Off the Charts: Hot Stars Surprise Astronomers |
| | The new study indicates that this same process might be the source of heat in some of the oldest stars in the Orion Nebula, which are still young by comparison to our Sun, said Joel Kastner of the Rochester Institute of Technology. | | | "The big surprise is clearly that in the case of the Orion core [region], these high temperatures are more the norm than the exception," said Norbert Schulz of the Chandra X-ray Center at the Massachusetts Institute of Technology. | | | Another finding in the Chandra study involved several protoplanetary disks, or solar systems in the making. |
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http://www.space.com/scienceastronomy/astronomy/hot_stars_001110.html
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| | Volume Visualization of the Orion Nebula |
| | Voxels in open space outside of the nebula are given a low opacity, making them transparent and empty of glowing gas. | | | The renderer uses a ray casting technique that traces the path of light rays extending from the spacecraft's viewpoint outwards into the scene. | | | These lighting effects create complex rippling patterns in the nebula's ionization layer. |
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http://vis.sdsc.edu/research/orion.html
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| | Nebulae and Star Formation |
| | Many of the nebula's details can't be captured in a single picture - any more than one snapshot of the Grand Canyon yields clues to its formation and history. | | | Other hot stars, also present in the nebula, are ionizing the extended optical nebulosity. | | | The Keyhole Nebula is a complex structure within the Carina Nebula (NGC 3372). |
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http://faculty.rmwc.edu/tmichalik/NebandStar.htm
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| | MAXON Computer Cinema 4D Tutorials: Orion Nebula |
| | Input the following settings: Projection = UVW Mapping, and enable Mix with other Textures, then click OK. The nebula itself is completely finished but there are still some other modifications that need to be done to make the nebula look like it is in outer space. | | | Step 17: Finally apply the last material Blue cloud to the Blue_cloud object in the Object Manager. | | | This tutorial will go over a technique that can be used to create a realistic nebula using only the bhodiNUT Channel Shaders. |
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http://www.maxoncomputer.com/tutorial_detail.asp?tutorialID=214&site=
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| | Messier Object 42 |
| | An excellent review of the astrophysics of the Orion Nebula is provided in 2003 with the superb monograph by Charles Robert O'Dell (O'Dell 2003), who summarizes the knowledge of that time, including HST research. | | | The first known drawing of the Orion nebula was created by Giovanni Batista Hodierna. | | | One major discovery was that of protoplanetary disks, the socalled "Proplyds" (planetary systems in formation) in these HST images of M42 (these images were used for an animation simulating the approach to a protostar [caption]). |
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http://www.seds.org/messier/m/m042.html
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| | The Orion Nebula |
| | The nebula is also the site of at least two systems of Herbig-Haro (HH) objects. | | | The optically visible nebula emits lines typical of HII regions, such as [NII], [OIII], and [SII], and hydrogen recombination lines. | | | Figure 1 shows a diagram displaying the relationship between the various layers of the nebula and molecular cloud. |
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http://www.atnf.csiro.au/pasa/18_1/schultz/paper/node3.html
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| | Orion |
| | Additionally to the data given above there is a skychart to locate the stars and objects. | | | Orion links with the Kings Chamber and the digits 12:12 | | | The Messier database has detailed information about the large Orion Nebula M 42 and M 43, the DeMairan nebula, which is a part of the Orion Nebula. |
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http://www.crystalinks.com/orion.html
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| | ORION NEBULA |
| | A conspicuous first magnitude giant star with a diameter of 35 times the size of our sun. | | | He was caught, put into a deep sleep and blinded. | | | I will leave you to work out how far that is in miles! |
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http://www.mikekemble.com/space/orion.html
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| | M42 - Great Orion Nebula |
| | With a visual magnitude of 4.0 it has undoubtedly been observed since antiquity but its nebulous nature was probably not recognised until telescopes were first turned on it. | | | M42 has a particularly complex range of of emission sources as part of it's spectrum, as well as a strong component of reflected broadband light, which probably accounts for the wide range of visible colours. | | | As well as being the brightest, M42 is perhaps the most famous and most photographed nebula in the night sky. |
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http://www.astrocruise.com/m42.htm
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| | The Orion Nebula |
| | The research is yielding important knowledge about how our own Sun and planets may have been born. | | | The nebula's light arises by a process that is similar to the operation of a neon sign. | | | Within the nebula are found youthful stars that have just begun to shine, stars-to-be that have not yet flicked the `on' switch of their internal thermonuclear fires, and even stars accompanied by surrounding material out of which planets may be forming. |
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http://imagine.gsfc.nasa.gov/docs/features/bios/lochner/orion.html
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| | DOC M42 Orion Nebula |
| | See also "Visual Astronomy of the Deep Sky" by Roger N. Clark (1990, Sky Publishing Corporation) page 98. | | | This nebula is one of the most dramatic and best known nebulae in the sky. | | | The Nebula in Orion is beautiful, and I see several circumstances which I never observed with other instruments, viz. |
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http://www.saao.ac.za/assa/html/doc_m42_orion_nebula.html
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| | Orion Nebula on Encyclopedia.com |
| | Interview: Jay McNeil and Joel Kastner discuss the recent discovery of McNeil's Nebula | | | Baby Stars in Orion solve mystery: hyperactive young stars in the Orion Nebula may help explain exotic isotopes in the solar system. |
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http://www.encyclopedia.com/html/O/OrionN1eb.asp
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| | The Great Orion nebula, Trapezium stars |
| | For details of object position and photographic exposure, search technical table by UKS reference number. | | | Many other, much larger nebulae than M42 in Orion are known, but none offers us so intimate a view of a nearby stellar nursery. | | | It is the high concentration of dust and gas in this part of the sky which has resulted in the formation of the stars, so the Orion nebula is no random association of bright stars and dusty gas. |
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http://www.aao.gov.au/images/captions/uks008.html
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| | M42 Orion (Great) Nebula, M43 De Mairan's Nebula and Trapezium Stars |
| | The disks may eventually form planetary systems like our Solar System | | | Orion Nebula Research - Contains research papers on the Orion Nebula and some detailed images. | | | The nebula contains many young stars with protoplanetary disks or structures in the early stages of forming a solar system. |
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http://www.science-park.info/astronomy/stellar/more/ori_m42.html
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| | Orion |
| | He thought that no animal could hurt him. | | | You should also find a shield in one hand, and a club in the other. | | | They are both in the night sky, but you can never see them at the same time. |
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http://www.windows.ucar.edu/tour/link=/the_universe/Constellations/orion.html&edu=elem
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| | ORION |
| | For info on Voyager II software, call Carina Software at (510) 355-1266, write them at 12919 Alcosta Blvd Suite #7, San Ramon, CA 94583, or visit Carina Software's home page and check out Voyager II for yourself. | | | Lay stones, to fix her when the tempests roar... | | | Through the Hubble space telescope the Great Orion Nebula becomes a colorful and awesome spectacle, over 20,000 times larger than our solar system. |
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http://homepage.mac.com/kvmagruder/bcp/aster/constellations/Ori.htm
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| | M-43, part of the Orion Nebula |
| | CCD image taken with an STL-1301E CCD camera thru our 20-inch telescope. | | | Messier has included it in the drawing of the Great Nebula.' | | | It is the raindrop shaped nebula in the center of the image above, and it surrounds a 9th magnitude star. |
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http://www.kopernik.org/images/archive/m43.htm
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| | Orion |
| | .....Compact reddish nebula just south of Monkey Nebula | | | The star is singular in the constellation because almost all members in Orion include Rigel, beta Ori, are emitting the bluish light. | | | They were born in the Great Orion Nebula a few millions years ago and have spread to present positions. |
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http://www.ne.jp/asahi/stellar/scenes/seiza_e/ori.htm
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| | Orion Nebula Region |
| | Nebula filters like UHC, OIII or H-Beta improve contrast when viewing the nebula in a not-so transparent night, and the nebula looks different in each of them, which makes their use interesting even in a superb night. | | | Viewing the nebula with a 6" telescope yields an edge more detail than with a 4". | | | This feature becomes conspicuous in a rich-field telescope (RFT) at low magnification. |
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http://www.astro.univie.ac.at/~koprolin/Photo/Neb/Orion_Region.html
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| | Orion |
| | Sigma Orionis is one of the few orbiting binaries found in Orion. | | | In 2000 the minimum is scheduled to occur on 5 December. | | | The last of these stars is also known as zeta Orionis, and is a well known triple star system. |
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http://www.dibonsmith.com/ori_con.htm
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| | eSky: Orion |
| | Another very well known object in Orion is the so-called Horsehead Nebula. | | | In addition to its better known stellar features, Orion also contains a bow-shaped array of less prominent stars to the west of the constellation's main body, which are said to represent the hunter's cape or shield. | | | This phenomenon is visible as a faint and broken ring known as Barnard's Loop, extending outwards as much as 14° from the central regions of Orion. |
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http://www.glyphweb.com/esky/constellations/orion.html
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| | M42 The Orion Nebula |
| | The blue nebula on the left is NGC 1977, also known as the Running Man Nebula. | | | This nebula is one of the regions of space where star formation is presently underway. | | | The great nebula in Orion is considered to be the finest example of a diffuse nebula in the sky. |
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http://members.cox.net/~sidleach/m42.htm
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| | Orion Nebula |
| | When the charged ions recapture the free electrons, the energy is given back up as (in part) optical light in the form of emission lines. | | | More technically, energetic ultraviolet starlight (most of which comes from Theta-1 Orionis C) ionizes a portion of the molecular cloud, that is, it strips electrons from the nebula's atoms, which are mostly hydrogen. | | | The stars of the Trapezium electrify a blister on the front edge of the molecular cloud, which makes it glow. |
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http://www.astro.uiuc.edu/~kaler/sow/ori-neb-p.html
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| | Orion Nebula Questions |
| | Fourth question, is the Orion of Nebula moving too, is everything in the space moving faraway from each other? | | | Like everything else in the sky, it rises in the east and sets in the west, and so it doesn't make much sense to ask if it is in an easterly direction or a westerly direction because these directions change as the earth turns on its axis. | | | 4) The Orion Nebula almost certainly is moving with respect to us, but I cannot easily find a good estimate of its speed. |
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http://van.hep.uiuc.edu/van/qa/section/Stuff_about_Space/The_Rest_of_the_Universe/20021009160741.htm
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| | GPN-2000-000888 - The Reflection Nebula in Orion |
| | NGC 1999 is an example of a reflection nebula. | | | This data was collected in January 2000 by the Hubble Heritage Team with the collaboration of star-formation experts C. Robert O'Dell (Rice University), Thomas P. Ray (Dublin Institute for Advanced Study), and David Corcoran (University of Limerick). | | | NGC 1999 lies close to the famous Orion Nebula, about 1,500 light-years from Earth, in a region of our Milky Way galaxy where new stars are being formed actively. |
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http://grin.hq.nasa.gov/ABSTRACTS/GPN-2000-000888.html
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| | The Orion Nebula |
| | It appears that proplyds are very common in the Orion Nebula and that may be an indication that planetary systems are very common in the universe. | | | This nebula is probably one of the most photographed objects in the night sky. | | | For those of you with ambitions to pursue astrophotography, here are some amateur images showing what you yourself might be able to achieve. |
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http://www.suite101.com/article.cfm/amateur_astronomy/86977
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| | Chandra :: Photo Album :: Orion Nebula Cluster :: 08 Jan 01 |
| | These observations are extremely important to understand since there is evidence that our Sun and Solar System may have formed in a similar region to the Orion Nebula. | | | The tremendous amount of X-ray energy emitted within these objects could affect any developing planetary systems in the dusty disks around these infant stars. | | | In addition to the known stars in the Orion Nebula, several systems containing stars about to ignite their nuclear engines also show X-ray emission. |
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http://chandra.harvard.edu/photo/2001/orion_mov
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| | Orion Nebula - Wikipedia, the free encyclopedia |
| | Observations with powerful telescopes (especially the Hubble Space Telescope) have found stars enclosed in dust rings, probably the first phase of a planetary system formation. | | | The Orion Nebula (also known as Messier Object 42, M42, or NGC 1976) is a glowing emission nebula with a greenish hue and is situated below Orion's Belt. | | | The Orion Nebula contains a very young open cluster, known as the Trapezium, with many stars still in their early years. |
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http://en.wikipedia.org/wiki/Orion_Nebula
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| | Messier 42 |
| | The most important part of the Orion Nebula is the part we can't see: the opaque Orion Molecular Cloud. | | | The Orion Nebula is one of the most interesting objects in the sky. | | | The Trapezium is made up of just a few stars, but it outshines all the rest of them combined. |
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http://www.astro.wisc.edu/~dolan/constellations/messier/m42.html
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| | eSky: Orion Nebula |
| | The quadruple star known as the Trapezium is one of these young systems, thought to be little more than 100,000 years old. | | | Though it lies some 1,300 light years from the Solar System, on a Galactic scale the Orion Nebula is a relatively nearby phenomenon. | | | The nebula's reddish colouration betrays the predominance of ionised hydrogen in the parent cloud, but more complex molecules such as carbon monoxide have also been detected. |
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http://www.glyphweb.com/esky/nebulae/orionnebula.html
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| | Orion Nebula |
| | The HST images below show for the first time small regions that seem to be on the verge of collapsing into stars and perhaps planetary systems. | | | While these nebulae themselves are huge (many light years across) a nascent solar system is tiny by comparison and hence invisible from the Earth. | | | Despite this, star formation is not all that well understood. |
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http://astro.nineplanets.org/twn/n1976x.html
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| | Orion Nebula -- Facts, Info, and Encyclopedia article |
| | Observations with powerful (A magnifier of images of distant objects) telescopes (especially the (Click link for more info and facts about Hubble Space Telescope) Hubble Space Telescope) have found stars enclosed in dust rings, probably the first phase of a (Click link for more info and facts about planetary system) planetary system formation. | | | It is one of the brightest (A cluster of stars within an intricate cloud of gas and dust) diffuse nebulae visible to the (The eye unaided by any optical instrument that alters the power of vision or alters the apparent size or distance of objects) naked eye in the night sky. | | | [Categories: Orion constellation, NGC objects, H II regions, Messier objects] |
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http://www.absoluteastronomy.com/Encyclopedia/O/Or/Orion_Nebula.htm
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| | The Great Orion nebula |
| | The Orion Nebula is famous for a number of reasons. | | | Its brightness led to it being the first nebula ever photographed (in 1882) and its proximity (1500 light years) means that we know more about it than any other star-forming region. | | | Three, five-minute exposures were used to make this picture using the Anglo-Australian Telescope. |
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http://www.aao.gov.au/images/captions/aat019.html
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| | M42 - The Great Orion Nebula |
| | The white component of the above image is shown below. | | | The four stars at the center of the image are known as the Trapezium and are not found in most photographs of this nebula because traditional film-based images must overexpose this region in order to show detail in the fainter nebulosity. | | | To find more information and images of this nebula visit the Web Nebulae - The Great Orion Nebula and the Messier Index - M42. |
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http://members.aol.com/ccdastronomy/m42.html
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| | SpectroCam-10 Orion Nebula |
| | The Kleinmann-Low Nebula (or KL) is a cluster of stars, presumably even younger than the Trapezium stars, which is still embedded so deeply in the gas and dust out of which it formed that it is only visible at infrared and radio wavelengths. | | | We are studying these images to determine the number of fainter sources in the KL cluster. | | | In fact, these objects are so young that they may be still evolving to the point of becoming true hydrogen burning stars. |
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http://astrosun2.astro.cornell.edu/research/projects/SC10/orion.html
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| | APOD: 2002 February 13 - The Great Nebula in Orion |
| | Orion Nebula cloud complex, which includes the Horsehead Nebula, will slowly disperse over the next 100,000 years. | | | Great Nebula in Orion can be found with the unaided eye just below and to the left of the easily identifiable | | | Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. |
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http://antwrp.gsfc.nasa.gov/apod/ap020213.html
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| | Orion Nebula (M42, NGC 1976) |
| | The best known diffuse nebula and one of the nearest regions to the Sun in which stars are presently being formed. | | | Other studies of the Nebula have provided strong evidence that protoplanetary disks are common around infant stars. | | | A study of the polarization of light in a region of the Orion Nebula has provided a clue to the origin of "handedness" in some of the chemical building blocks of terrestrial life (see chirality). |
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http://www.daviddarling.info/encyclopedia/O/OrionNeb.html
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| | STScI Orion Nebula Animation |
| | This animation was produced by Walt Feimer in the Astronomy Visualization Laboratory at the Space Telescope Science Institute. | | | The final sequence, from details of the HST image, show several protoplanetary disks or ``proplyds'' and finally a single dark disk surrounding a central star. | | | An image taken with the Wide Field Planetary Camera 2 aboard the Hubble Space Telescope (C.R. O'Dell, Rice University) provides a more detailed view of the Nebula. |
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http://oposite.stsci.edu/pubinfo/OrionAnim.html
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| | Astronomers Discover Free-Floating Planets in the Orion Nebula SpaceRef - Your Space Reference |
| | The backdrop of the Orion Molecular Cloud obscures everything that lies behind it, which is very useful because it means that all the objects seen in this part of the sky are members of the cluster, except for perhaps a handful which lie in the foreground. | | | Also check out our space directory and search engine. | | | Hence, this picture shows Orion as we would see it if our eyes were sensitive to light of twice the wavelength they are actually capable of detecting. |
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http://www.spaceref.com/news/viewpr.html?pid=1211
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| | Science Line - Night Patrol - Constellations - Orion - Orion Nebula |
| | Recent images from the Hubble Space Telescope orbiting above the Earth have revealed many other siblings - some of which are encircled by dark disks of matter which itself may eventually coalesce to form planets over 1,500 light-years from our own. | | | The four bright stars embedded within the nebula are known as the Trapezium - bright youthful stars no older than million years - only a fraction of the age of the Sun which was conceived some 4.6 billion years ago. | | | The most interesting object within Orion has to be the Orion nebula which is located in the hunters sword seen below his belt. |
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http://www.sciencenet.org.uk/astron/const/orion/OrionNebula.html
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| | APOD: January 3, 1999 - Orion's Horsehead Nebula |
| | Also visible in the picture are blue reflection nebulae, which preferentially reflect the blue light from nearby stars. | | | The emission nebula's red colour is caused by electrons recombining with protons to form hydrogen atoms. | | | Horsehead Nebula is one of the most famous nebulae on the sky. |
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http://www.star.ucl.ac.uk/~idh/apod/ap990103.html
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| | Orion |
| | Although Messier stopped at only two, other parts of the nebula in this region have received further NGC numbers. | | | M42 had been known since the beginnings of recorded astronomy as a star, but it is so outstanding that it was first noted as an extended nebula in 1610, only a year after Galileo's first use of the telescope. | | | So many details are visible in even a small telescope that M42 will more than repay the observer who makes it a frequent target, and who will find that it is hard to make a realistic sketch that can capture all of the finer features. |
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http://www.noao.edu/image_gallery/html/im0349.html
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| | MSN Encarta - Multimedia - Orion Nebula |
| | M 42 is spread across more than 15 light-years of space. | | | Located in the constellation Orion, 1,600 light-years away from Earth, the Orion Nebula (M 42) is a bright cloud of gas and dust where stars are in the process of being born. | | | The Orion Nebula looks bright because it reflects light from the multiple star Theta Orionis, located on one side. |
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http://encarta.msn.com/encnet/refpages/RefMedia.aspx?refid=461565078
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| | The Orion Nebula |
| | Over fifty variables are contaoned in the Orion Nebula, in which new stars are being born. | | | In the heart of the nebula is the "Trapezium", a multiple star. | | | M-42 is strangely shaped, and lanes of abscuring dust can be identified -- including the "Fishmouth" which protrudes into the nebula. |
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http://clifty.com/scott/DSO/1976.html
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| | M-42, The Orion Nebula |
| | Messier has prepared a drawing in which he has included the details of this Great Nebula with the greatest care, which can be seen in the | | | It had been observed since by many astronomers. | | | : (March 4th, 1769) '...the fine nebula in Orion's sword, around the star Theta which is included with three other stars, smaller than can be seen in some good instruments. |
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http://www.kopernik.org/images/archive/m42.htm
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| | IRAS View Of The Constellation Orion |
| | The Rosette Nebula is the brightest object near the left margin of the picture. | | | Above it to the left is the nebulosity around the belt star Zeta Orionis which contains the often photographed Horsehead Nebula. | | | Another one, fainter and larger, can be seen in the lower left quadrant of the image. |
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http://www.ipac.caltech.edu/Outreach/Gallery/IRAS/orion.html
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| | Orion Nebula |
| | This Diffuse Nebula has an apparent angular size of 85 x 60 and a visual brightness of 4. | | | The Orion Nebula has an NGC catalog number of NGC 1976. | | | The Orion Nebula is a diffuse nebula which is located in the constellation Orion. |
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http://www.absoluteastronomy.com/nebulas/orion.htm
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