... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2007 December 24 . Emission Nebula IC 1396 . ... Explanation: Sprawling across hundreds of light-years, emission nebula IC 1396 mixes glowing cosmic gas and dark dust clouds . ... APOD presents: Astronomy Pictures of the Year for 2007 . ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . ...

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• APOD: 2005 December 23 - Hydrogen and Dust in the Rosette Nebula
• APOD: 2010 December 30 - Still Life with NGC 2170
• APOD: 2001 December 14 - NGC 7023: The Iris Nebula

... Credit Copyright: Brian Lula Explanation: Like delicate cosmic petals, these clouds of interstellar dust and gas have blossomed 1,300 light-years away in the fertile star fields of the constellation Cepheus . ... Dark, obscuring clouds of dust and cold molecular gas are also present and can lead the eye to see other convoluted and fantastic shapes. ... NASA Web Site Statements, Warnings, and Disclaimers . ... Publications with keywords: reflection nebula - emission nebula - dark nebula - NGC 7023 . ...

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• IC 1805: Light from the Heart
• NGC 2170: Still Life with Reflecting Dust
• Emission Nebula IC 1396

Discover the cosmos! ... 2000 December 29 . The Dark Horsehead Nebula . ... Image Processed by Al Kelly . Explanation: While drifting through the cosmos this magnificent interstellar dust cloud, sculpted by stellar winds and radiation, has chanced to assume a recognizable shape. Fittingly named The Horsehead Nebula it is embedded in the immense complex of star forming gas and dust surrounding the Orion Nebula some 1,500 light-years distant. ... About APOD | ...

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• Arcetri Star-Formation Group Publications
• FIRST LIGHT OF ARNICA AT TNG
• APOD: 2000 April 24 - Reflection Nebula M78

Astronotes Armagh Planetarium's Stellar Blog! ... Solar System . ... Space Flight . ... Search Results for ?stellar nursery? Posted on February 21, 2013 | No Comments A new image from the European southern ObservatoryтАЩs Visible and Infrared Survey Telescope for Astronomy €а(VISTA) telescope reveals the glowing clouds of gas and filaments of dust surrounding hot young [ ] . Continue Reading.. Posted on March 2, 2016 | ... Posted on November 12, 2015 | ... Posted on July 28, 2015 | ...

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• Astronotes | Armagh Planetarium's astronomy news from across the Universe -
• M78 off Orion: Bladerunner Nebula? | Astronotes
• Stellar Nursery NGC 6357: Image of the Month | Astronotes

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 . ...

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I was wondering what conditions should be met to have the "darkest" sky .. ... Upon the above publication of the Southern Galactic hemisphere, TunГ Tezel started seeking opportunities to create the Northern counterpart image. ... So, the initial quest of having the darkest possible sky have delivered us these two all-sky images of the two galactic hemispheres as seen from Planet Earth. Zoomable and 'full-screenable' fisheye view of the "darkest sky" Southern Galactic Hemisphere image. ...

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• The Very Large Telescope Project

Dark Cloud Plots . Single Scattering Albedo . ... Scattering Phase Function Asymmetry . ... Dark Cloud Studies . ... Coalsack and dark cloud in Libra; UBV . DC1 . Yes . ... No g determination possible . ... Taurus molecular cloud; Berkeley UVX 1600 . ... G251.2+73.3 cirrus cloud; FAUST 1400-1800 . ... Fitzgerald, M. P., Stephens, T. C., & Witt, A. N. 1976, ApJ, 208, 709 . ... Interstellar dust scattering properties from: [ Diffuse Galactic Light ] [ Reflection Nebulae ] [ Dark Clouds ] . ...

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• Dust disk around a black hole in galaxy NGC 7052
• Determinations of Dust Scattering Properties from Diffuse Galactic Light (DGL)
• The Ever-changing Circumstellar Nebula around UW Centauri

... self-absorption - the absorption of light shining on an object by a process similar to that which produced the light originally; if a cloud emits less light than it absorbs from other clouds behind it, this net loss of light, termed self-absorption , causes the foreground cloud to appear darker than the background field (the term is from spectroscopy, where small absorption dips sometimes occur in larger emission lines, making the latter look as if it is absorbing part of itself) . ... HISA Main ...

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• Diffuse Galactic Light in the Large Magellanic Cloud
• The Pleiades
• New Results Confirm Dark Galaxy Existence

... 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) . ...

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... A faint, dusty rose of the northern sky, emission nebula IC 410 lies about 12,000 light-years away in the constellation Auriga. The cloud of glowing hydrogen gas is over 100 light-years across, sculpted by stellar winds and radiation from embedded open star cluster NGC 1893. ... These "tadpoles" (seen just below center) are regions of denser, cooler gas, and more slowly resist the erosive radiation from the hot stars. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

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home publications > mercury . SEARCH ASP SITE: Match ALL words Match ANY word . ... Purchase through the AstroShop . ... Publications of the ASP (PASP) . ... Astronomy Beat . ... Lighting the Nebulae . ... The interplay of light and atoms paints the beautiful palette of planetary nebulae. ... So come along on a trip to the inside of a planetary nebula and see what really happens as light and atoms violently interact to create some of the loveliest objects in the night sky. home | ... astroshop | ...

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• ASP: The Nebula in Our Own Backyard
• ASP: Guest Observer
• ASP: Taking a Grand Virtual Voyage in the Milky Way

... ATNF Home . About ATNF . ... About ATNF overview . ... Governance overview . Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Our people overview . ... Publications overview . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . ... Mopra radio telescope . ... Australia Telescope 20GHz Survey . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... Some Results of an H Survey in the Taurus Dark Clouds . ...

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• Star Formation
• ATNF Colloquium
• The Cloudy Universe

... Astrophysics Group . ... AMI Publications . ... AMI Consortium: Hurley-Walker N. et al., 2011, preprint (arXiv:1103.0947) . ... AMI Consortium: Olamaie M. et al., 2010, preprint (arXiv:1012.4996) . ... AMI Consortium: Shimwell T. W. et al., 2010, preprint (arXiv:1012.4441) . ... AMI Consortium: Davies et al., 2010, preprint (arXiv:1012.3659) . ... AMI Consortium: Franzen et al., 2010, preprint (arXiv:1012.3711) . ... AMI Consortium: Rodriguez-Gonzalvez C. et al., 2010, preprint (arXiv:1011.0325) . ...

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• Martin Krause - Publications
• Modelling absorption and emission of radiation by interstellar dust Bojan
• Modelling absorption and emission of radiation by interstellar dust

... Home Lectures Lecture Series 2011-2012 Lecture Series 2011-2012 ? тАЬA Ray of Light in a Sea of Dark (Matter)тАЭ ? Charles Keeton . ... Charles Keeton , associate professor of physics and astronomy at Rutgers University and faculty director of the Aresty Research Center for Undergraduates , will speak to the AAA Friday, March 2, on тАЬA Ray of Light in a Sea of Dark (Matter).тАЭ The free public lecture begins at 6:15 p.m. in the Kaufmann Theater of the€а American Museum of Natural History . ...

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... Spectrosc., 90 , 574-579. [ abstract (in English; ASCII file); paper (in Russian; PS file)] . ... Astronomy Letters, 26 , N 10, 679-690. [ abstract (ASCII file); paper (PDF file)] . ... 2001) . ... 72 , N 5, 607-612. [ abstract (ASCII file); paper (PS file)] . ... Scattering and polarization properties of the non-spherical particles. in: Smith W.L., Timofeyev Y.M. (eds.) IRS 2000: Current Problems in Atmospheric Radiation, A.Deepak Publ. (in press) [ abstract (ASCII file); paper (PS file)] . ...

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• Alexei Kritsuk's Home Page
• INTAS project 2003
• Astronomy Electronic Preprints and Publications

... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... A dark patch in Orion star formation . ... Located in the constellation Orion the Hunter, the Orion Molecular Cloud Complex, which is 1,500 light-years away, is the closest region of massive star formation to Earth and contains a treasury of bright nebulae, dark clouds, and young stars. ... Normally, a dark patch such as this would indicate a dense cloud of cosmic dust, obscuring the stars and nebula behind it. ...

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• APEX turns its eye to dark clouds in Taurus | Astronomy.com
• Sifting through dust near Orion's Belt | Astronomy.com
• Curious dark nebula seen as never before | Astronomy.com

... Volodymyr Kuzkov, Sergii Kuzkov, Zoran Sodnik - Direct measurements of laser light aberration from the ARTEMIS geostationary satellite through thin clouds // arXiv.org - New resalts to paper at Conference ICSOS-2014, Kobe, Japan, May 7-9 (2014), S4-4, [view pdf file] . ... Kuz'kov V., Volovyk D., Kuzkov S., Sodnik Z., Pukha S. - Realization of Laser Experiments with ESA'S Geostationary Satellite ARTEMIS. ... Preparation to Optical Communication Experiments With ARTEMIS Satellite. ... V.P. Kuz`kov. ...

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ALBUM: planets Artist: Eloy Album: Planets Transcription in progress, e-mail corrections to datta@cs.uwp.edu DRAFT .1 @ SONG : Introduction Instrumental @ SONG : On The Verge Of Darkening Lights warming rays are shadowed by threatning clouds while hissing winds create the oddest sounds linked to the power and speed of a beam. ion is cast to this strange and fake scene forced into isolation ...

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• http://crydee.sai.msu.ru/ftproot/pub/rec/music/lyrics/cs-uwp/b/byrds/mr_spaceman
• http://crydee.sai.msu.ru/ftproot/pub/rec/music/lyrics/cs-uwp/r/rocky.horror/soundtrack
• http://crydee.sai.msu.ru/ftproot/pub/rec/music/lyrics/cs-uwp/d/dio/the.last.in.line

... 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. ...

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From: TerryMosel aol.com Date: Tue, 16 Dec 2003 20:11:56 EST Subject: Mars Dust storms, lecture, TV, Bargain telescope Hi all, 1. ... Dr Donald Parker (USA) writes of his CCD images taken on December 13 (Ls = 315 degrees): "A significant dust storm has arisen to cover Chryse, Erythraeum M., Aurorae Sinus, Candor, with smaller clouds in northern Argyre and possibly Aram." ... Data from December 14-16 indicate a spreading of the dust to include part of Thaumasia." ... Bargain LIDL Telescope. ...

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• M.D. Smith, Research Astronomer
• Armagh Observatory
• Asteroid Impact