... The dark site's rarefied atmosphere, at about 50 percent sea level pressure, is also extremely dry. ... W5: Pillars of Star Formation . ... A study of star forming region W5 by the sun-orbiting Spitzer Space Telescope provides clear clues by recording that massive stars near the center of empty cavities are older than stars near the edges. ... A Colorful Side of the Moon . ... This colorful topographical map of the Moon is centered on the lunar farside, the side not seen from planet Earth. ...

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... 2015 April 22 . Colorful Star Clouds in Cygnus . ... Featured here is a star forming region rich in glowing gas and dark dust toward the constellation of the Swan (Cygnus), near the bright star Sadr. ... Toward the right of the image is Barnard 344, a dark and twisted dust cloud rich in cool molecular gas. ... While the glowing red gas is indicative of small emission nebulas , the blue tinted areas are reflection nebulas -- starlight reflecting from usually dark dust grains. ... About APOD | ...

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• APOD: 2000 January 7 - NGC 4214: Star Forming Galaxy
• APOD: 2009 December 10 - The Colors of IC 1795
• APOD: 2011 October 13 - The Color of IC 1795

... STScI-PRC95-45a CRUCIBLE OF CREATION: PANORAMIC HUBBLE MOSAIC ZOOMS IN ON MAELSTROM OF STAR BIRTH This spectacular color panorama of the center the Orion nebula is one of the largest pictures ever assembled from individual images taken with NASA's Hubble Space Telescope. ... Though this 2.5 light-years wide view is still a small portion of the entire nebula, it includes almost all of the light from the bright glowing clouds of gas and a star cluster associated with the nebula. ...

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• Star Names
• Current Arecibo Observing Modes
• radioastron

... The hot remnant star (in the center of the green oval) drives a fast wind into older material, forming a hot interior bubble which pushes the older gas ahead of it to form a bright rim. ... Credits: Bruce Balick (University of Washington), Jason Alexander (University of Washington), Arsen Hajian (U.S. Naval Observatory), Yervant Terzian (Cornell University), Mario Perinotto (University of Florence, Italy), Patrizio Patriarchi (Arcetri Observatory, Italy) and NASA ...

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• APOD: 2000 April 24 - Reflection Nebula M78
• Ida - Galileo
• APOD: June 25, 1996 - A Star Forming Region in the LMC

... HST . ... Data . ... HST Overview . Overview . ... Retrieving HST Data . ... This FORM is a quick tool for flux conversion between diverse unit systems. ... INPUT FLUX or MAGNITUDE UNITS CLEAR Jy W/m2/Hz W/m2/um W/cm2/um erg/cm2/s/Hz erg/cm2/s/A photons/m2/w/um photons/cm2/s/A AB magnitude magnitude V magnitude U magnitude B magnitude R magnitude I magnitude J magnitude H magnitude K magnitude L magnitude L1 magnitude M magnitude N magnitude Q . ... Enter the Input Flux or Magnitude Value : . ...

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• Young, Ultraviolet-bright Stars Dominate Dust Heating in Star-forming Galaxies
• Extragalactic Cepheid Distances by Calibrated Period - Luminosity-Color
• The Incidence of Highly Obscured Star-forming Regions in SINGS Galaxies

... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... Survey Telescopes . ... Star Clusters . ... FLAMES . ... 100 Hours of Astronomy . ... IMAX€о 3D Film Hidden Universe . ... This image, the first to be released publicly from VISTA, the worldтАЩs largest survey telescope, shows the spectacular star-forming region known as the Flame Nebula, or NGC 2024, in the constellation of Orion (the Hunter) and its surroundings. ...

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• Panning across the bright star cluster Messier 7 | ESO
• Panning across the bright star cluster Messier 7 | ESO United States
• Panning across the bright star cluster Messier 7 | ESO Australia

... Its perihelion would occur on April 1, 1997, at which point the comet would be only 0.92 astronomical units from the Sun, just within the orbit of Earth. ... Taken in April 1993, the photo showed the comet over 13 astronomical units from the Sun, well beyond the orbit of Saturn. ... Hale, as in Comet Hale-Bopp, has written a book, Everybody's Comet (available through the ASP Catalog) and coordinated an Internet project, "Hale-Bopp: Live in the American Classroom." ... Anatomy of a comet. ...

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• ASP: Star Science in the Autumn Sky
• ASP: Mercury Magazine Order Form

An eight-billion-year-old cluster of stars 13,000 light-years from Earth, called NGC 6791, can be seen in the image. ... This particular cluster is called an open cluster, because the stars are loosely bound and have started to spread out from each other. The area pictured is 0.2 percent of Kepler's full field of view, and shows hundreds of stars in the constellation Lyra. The image has been color-coded so that brighter stars appear white, and fainter stars, red. ...

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• http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7B667543D1-EA63-4B48-B216-2A0B8A141462%7D
• http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7B0F8025ED-5940-4AF9-8D96-6784D649D808%7D
• http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7B44AE0D7A-3D00-45E9-A33C-9A358F7FF0A5%7D

In this gallery are many images of Low Surface Brightness Galaxies which have recently been discovered and analyzed. ... The central surface brightness of this galaxy is 24.28 . Malin 2 This galaxy is another huge disk galaxy with a scale length of 15 kpc and a redshift of 15000 km/a. The high surface brightness knot in one of its spiral arms actually has the same color, luminosity and H-alpha equivalent width as the entire Large Magellanic Cloud . ... Truly it is a Low Surface Brightness Galaxy. ...

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• Hubble Ultra Deep Field

... 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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... Spherical aberration, coma, and astigmatism are also easily observed using the star test. ... Off-axis images are complex. ... Fig. ... Diffraction by a circular aperture as a function of defocus for no aberration Airy Disk 1 wave defocus Less than 1 wave defocus Fig. ... Diffraction by a circular aperture as a function of defocus for third-order spherical aberration Paraxial Focus Small distance inside paraxial focus Moderate distance from marginal focus Immediate neighborhood of marginal focus Fig...

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The Astronomical Society of Australia has been asked by STANDARDS AUSTRALIA to compile a list of "designated" optical observatories that are valuable resources for (i) research, (ii) education and (iii) community use. The ASA is the final arbiter of whether any particular observatory is so designated. ... Upon receipt of your application form, your observatory will be entered on a list of "Pending Designated Observatories" on the ASA Home Page. ... It will be emailed for you. ... Email . ...

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• Designated Observatory Registry
• Untitled1
• THE AUSTRALIAN NATIONAL UNIVERSITY

... Our Galaxy . ... Stars . ... Image credit: ESO, Acknowledgement: VST/Omegacam Local Group Survey) . First observed in 1909, the WLM galaxy is part of the Local Group, about 10 million light years (3.1 Mpc) across, this is the set of more than 35 galaxies which includes our own Milky Way. ... I compared this little galaxy to a living fossil because looking at it gives us an insight into a past era in the UniverseтАЩs history. ... Distances and metallicities for 17 Local Group galaxies? . ...

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• M55 globular cluster seen by ESO | Astronotes
• Orion, mighty hunter of the winter sky | Astronotes
• How do galaxies form? - New discovery from European Southern Observatory |

... Forms . ... This page explains how you can embed input forms into wiki pages. ... Forms processing can be found in the Cookbook (see below). ... input text name value size= n :) (: input hidden name value :) (: input password name value :) (: input search name value :) (: input number name value min=x max=y step=z:) (: input email name value :) (: input url name value :) (: input date name value :) (: input radio name value label checked=checked:) (: ...

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• The 1000 Brightest HIPASS Galaxies
• Pulsar Group PmWiki/Forms
• ATNF Daily Astronomy Picture

... Impact craters and associated concentric rings are about the only features to be found on Callisto. ... It has a bright central region that is 600 kilometers in diameter, and its rings extend to 3000 kilometers in diameter. ... This image shows the heavily cratered surface of Callisto. ... Also visible is a fresh, sharp-rimmed crater some 90 km (56 miles) across named Igaluk (center left third of picture), and a bright zone in the south polar area (bottom of image) which could be an impact scar. ...

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• The Polar Aurora
• Kuiper-Oort
• Carrington's Flare

... S-6.The X-ray Sun . S-7.The Sun's Energy . S-7A. The Black Hole at . our Galactic Center . ... Our Sun is part of a huge wheel-shaped collection of stars. ... However, unless that object happens to be headed directly at the black hole (a relatively small target) it will just swing around and fly away again, like a comet making a pass at the Sun. ... Far from being a voracious devourer of stars and of interstellar gas, "our own" black hole is rather benign. ... What holds galaxies together? ...

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• The Polar Aurora
• The Motion of Magnetically Trapped Particles -- History
• INTERBALL Zvenigorod Symposium Preliminary Registration Form

... Уголки, кронштейны, пластины . Матрас Nido Magia Form Lana 75х75 BabySleep обеспечит правильный и здоровый сон. ... Рассматриваемый матрас состоит из экологически чистых 'кокосовых плит', основой служит блок Natural form, а .. Матрасы . ...

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• Arzberg Form 1382 weiss Масленка 125 г - Arzberg - Arzberg Разведчики
• Развивающая игрушка Bright Starts Дрожащий дружок Лягушка Трусики-стринги,
• Arzberg Form 1382 Blaubl?ten Блюдце для суповой чаши 17 см - Arzberg - Arzberg

... The theater "U Nikitskikh Vorot" is located at the Nikitskiye Vorota (Nikita Gate) Square, at the intersection of the Nikitskiy (formerly Suvorovckiy) Boulevard and the Bolshaya Nikitskaya (formerly Gerzen) Street. ... 1) From "Arbatskaya" metro station (any of the two). ... Then walk for 5-6 minutes on the right side of the Nikitskiy Boulevard in the direction of the Pushkinskaya Square until you see the theater's front porch. ... BACK to "U Nikitskikh Vorot" theatre page . ...

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• Registration Form
• Quadratic Forms (Fall 2000)
• p-adic numbers, modular forms and their applications (Spring 2009)

... With the stars gamma Can and delta Can , it forms another asterisms called " the Asses and the Manger ". ... Formed by the stars delta Ori, epsilon Ori and zeta Ori ; in Latin America it is called the " Three Marys ". ... Built by the four stars alpha UMa, beta UMa, gamma UMa and delta UMa . ... Formed by the four stars alpha Del , beta Del , gamma Del and delta Del . ... Also on Orion; the belt stars ( delta Ori , epsilon Ori and zeta Ori ), the sword and eta Ori build up this asterism. ...

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• Astronomical Glossary - N thru R
• Under a Dog Day Sky August 1999

... First announcement . Second announcement . ... Astronomy in Ukraine Past, Present, and Future (MAO-2014) . ... The Conference devoted to the 70th anniversary . ... Pre-registration for the conference is terminated. The second announcement will be released on the 1st of March. Those who have filled out the pre-registration form will be asked to continue with the registration. Those who register for the first time, will be offered a full registration form. ...

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• Achievements - Page 4
• MAO NASU :: Topic: Fw: IAU Commission Reform (1/1)
• Science - Page 2