... The Reflecting Dust Clouds of Orion . ... Explanation: In the vast Orion Molecular Cloud complex, several bright blue nebula are particularly apparent. Pictured above are two of the most prominent reflection nebulas -- dust clouds lit by the reflecting light of bright-embedded stars. ... NASA Web Site Statements, Warnings, and Disclaimers . ... Publications with keywords: Orion - dust - reflection nebula . Publications with words: Orion - dust - reflection nebula . ...

... 2003 January 21 . The Reflecting Dust Clouds of Orion . ... Explanation: In the vast Orion Molecular Cloud complex, several bright blue nebulas are particularly apparent. Pictured above are two of the most prominent reflection nebulas - dust clouds lit by the reflecting light of bright embedded stars. ... The Orion complex lies about 1500 light-years distant, contains the Orion and Horsehead nebulas, and covers much of the constellation of Orion . ... About APOD | ... NASA Technical Rep.: ...

To understand the impact of low metallicities on giant molecular cloud (GMC) structure, we compare far-infrared dust emission, CO emission, and dynamics in the star-forming complex N83 in the Wing of the Small Magellanic Cloud (SMC). ... This allows us to resolve the relative structures of H2, dust, and CO within a GMC complex, one of the first times such a measurement has been made in a low-metallicity galaxy. ... ADS Citation Query . citations = 59 . citations vs. year [year,citations] . ...

New Tables The HIPASS Bright Galaxy Catalog . ... Table 1a,b The 1000 Brightest HIPASS Galaxies . Table 2 The brightest HIPASS galaxies, HVCs and HI clouds (see below) . Table 2.1 subset: galaxy groups . Table 2.2 subset: galaxies with wrong optical velocities . Table 2.3 subset: HI clouds / protogalaxies . Table 2.4 subset: new galaxies . Table 2.5 subset: extended galaxies . Table 2.6 subset: galaxy pairs . ... Table 4.1 ATCA follow-up observations (C942) . ...

One of the goals of ALFALFA (the Arecibo Legacy Fast ALFA Survey) is that of verifying whether a significant population of optically faint, baryon rich, low mass systems exists. ... ALFALFA has easily detected the cloud VIRGOHI 21, reported by Davies et al. ... The clouds in the complex appear not to be gravitationally bound to one other, and may represent the remnant of an ancient episode of harassment. ... Davies, J., Minchin, R., Sabatini, S., van Driel, W., Baes, M. et al. ...

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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... Director of the RAS ISR . RAS Academician . ... Astrophysics module Kvant of the orbital complex Mir launched in 1987 contains the largest on the station complex of the scientific equipment named the orbital observatory Roentgen. Observatory Roentgen consists of 4 X-ray telescopes, jointly exceeding the range of energies from 2 to 800 keV. ... Among the most significant results that were received in the observatory Roentgen are: . ... measurement of the periods of 9 X-ray pulsars; . ...

True Color Image Gallery: Galactic SNR | Magellanic Cloud SNR . ... Chandra Proposer's Guide pile up section ] During frame readout, the ACIS CCDs take 40 microsec to (parallel) transfer the charge by one pixel. As a result of this, each frame readout, each pixel is exposed for 40 microsec to a source (plus cosmic X-ray background) at each location along its column. ... Note also that the image does not just trail, it extends along the whole column. ... Chandra Supernova Remnant Catalog . ...

Low Res. 72 dpi - 37K . ... Res. 150 dpi - 132K . ... In this Wide Field and Planetary Camera 2 (WFPC2) image, the central star is partially hidden by the disk, but can be pinpointed by the stubby jet (shown in green), which it emits. ... Res. 150 dpi - 96K . ... The thin, dark disk is illuminated by the light of its hidden central star. ... A thin, dark lane extends to the left and to the right of the binary, suggesting that a disk or ring of dusty material encircles the two young stars. ...

... 78Mingaliev+ J/A+A/370/78 RATAN-600 NCP bright radio sources (Mingaliev+, 2001) ================================================================================ Observations of the bright radio sources in the North Celestial Pole region at the RATAN-600 radio telescope. ... The flux densities of 171 sources in the Declination range +75deg +88deg are presented; typical flux density errors are 5-10 percent including calibration errors. ... Flux density at 2.3GHz 48- 52 F5.3 Jy e_S2.3GHz ? ...

Orbital intersection . ... Structure of Taurid stream . ... Meteoroid swarm and Taurid fireballs . ... The following four diagrams schematically show four different Taurid orbits and the orbits of Earth and Jupiter. ... The Taurid stream contains particles (small, solid grains) at different stages of their precession cycles. ... The study of when a meteor stream can produce a meteor shower is the study of when precession brings orbits to intersection with Earth, or e.g. with Mars . ...

. Please standby and you will be automatically connected to the new location of the unframed Supernova page. Or, click on the link above. If you have questions or problems, please email me at David Bishop dbishop@vhdl.org . Last modified: Mon Aug 27 12:40:15 EDT 2001

Full-Text Search . ... arXiv.org . astro-ph . ... SAI VO . Search sort results by Date Relevance . Use logical operators AND , OR , NOT and round brackets to construct complex queries. Whitespace-separated words are treated as AND ed. Show 10 50 100 articles per page in Full Compact mode . Normalized to: Bright, J. 1 article(s) in total . 4 co-authors. Median position in authors list is 5,0 . Co-author(s): . ... Astronet | SAI MSU . ...

GALAXIES cenA .tiff 40 Bright Radio Galaxy M31.tiff Nikon Andromeda Galaxy (note HII regions in spiral arms) ngc6744.tiff 40 NGC 6744 a face-on spiral clouds_20d.tiff H'blad The Magellanic Clouds our nearest neighbours Lmc_7.tiff Nikon The Large Magellanic Clouds Lmc_zoom.tiff Nikon Detail of previous image smc_7.tiff Nikon The Small Magellanic Clouds smc-zoom.tiff Nikon Detail of previous image 30dor_40_BVR.tiff 40 The 30 Dor ... B [OIII] Halpha trifid.tiff 40" The Trifid Nebula. ...

... Telescopes ћ Binoculars ћ Microscopes . Meade Ultra-High Transmission coatings (UHTC ) Group . ... Meade Standard Coatings: The optical surfaces of all Meade telescopes include high-grade optical coatings fully consistent in quality with the precision of the optical surfaces themselves. ... These specialized, and extremely advantageous, coatings are offered here as the Meade Ultra-High Transmission Coatings (UHTC) group, a coatings group available optionally on many Meade telescope models. ...

Introduction. General Ideas of Structure and Physical Parameters of Interstellar Medium. Chemical Structure of Interstellar Gas. Main Components of Interstellar Medium: Molecular Clouds, Diffuse Clouds HI, Intercloud Medium, HII Zone, Coronal Gas. ... Physical Processes, Which Have an Influence on Interstellar Medium State. Basic Ideas of Gas-Dynamics. ... Gas-Dynamics Stability. ... Stationary Shock Waves. Shock Waves with Decay. ... Shock Wave Propagation in Exponential Mediums. ...

... Tonight's Sky . ... News . ... Sky this Week . ... The "flame" burns bright in new WISE image . ... A new image from NASA's Wide-field Infrared Survey Explorer (WISE) shows the candle-like Flame Nebula lighting up a cavern of dust. ... The new WISE view of the Flame Nebula, in which colors are assigned to different channels of infrared light, looks like what appears to be a flaming candle sending off billows of smoke. ... Only registered members of Astronomy.com are allowed to comment on this...

... Curriculum Vitae Observations and theory of star cluster formation 22) A.K.Dambis and Yu.N.Efremov Journal for History of Astronomy, 31, 115-134, 2000 Dating Ptolemy's star catalogue through proper motions: the Hypparchan epoch 23) B.G.Elmegreen, Yu.N.Efremov, S.Larsen Astrophys. J., 535, 748 - , 2000 A young globular cluster in the galaxy NGC 6946 24) Yu.N.Efremov. ... 28) Yu.N.Efremov. ... The location of star complexes in the Galaxy was studied in papers with E.Alfaro, L.Berdnikov and T.Sitnik. ...

... 2011: . Detection of galaxies with large peculiar velocities . ... New galaxies with polar rings . ... The new catalog contains 275 galaxies. ... Radio galaxy RC J0311+0507, a unique object of the early Universe . ... The estimation of the stellar population age in the host galaxy via the multicolor photometry (BTA) and new infrared data (UKIRT, 2011), amounting to 0.8 Gyr results in the moment of its formation when the universe was about 0.5 milliard years old (z~10). ... Archive . ...