... A large disk of dust and gas orbiting Infrared Source 4 (IRS 4), visible in dark red near the image center, gives the nebula an hourglass or butterfly shape. S106 gas near IRS 4 acts as an emission nebula as it emits light after being ionized , while dust far from IRS 4 reflects light from the central star and so acts as a reflection nebula. ... Publications with keywords: star formation - nebula - gas - dust . Publications with words: star formation - nebula - gas - dust . ...

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 . ...

... 2011 November 7 . Star Forming Region S106 . ... Explanation: Massive star IRS 4 is beginning to spread its wings. Born only about 100,000 years ago, material streaming out from this newborn star has formed the nebula dubbed Sharpless 2-106 Nebula (S106), pictured above. ... S106 gas near IRS 4 acts as an emission nebula as it emits light after being ionized , while dust far from IRS 4 reflects light from the central star and so acts as a reflection nebula . ... About APOD | ...

. What Is It? FAQ Key Publications Links . This website is a gift from Nancy Riess . of Interactive Technologies .

... 2000 April 24 . Reflection Nebula M78 . ... Explanation: An eerie blue glow and ominous columns of dark dust highlight M78, a bright reflection nebula in the constellation of Orion . The dust not only absorbs light, but also reflects the light of several bright blue stars that formed recently in the nebula. ... M78 belongs to the larger Orion Molecular Cloud Complex that contains the Great Nebula in Orion and the Horsehead Nebula . ... About APOD | ...

... Here is a brief outline of the current theory of the events in the early history of the solar system: . A cloud of interstellar gas and/or dust (the "solar nebula") is disturbed and collapses under its own gravity. ... The gas cools off enough for the metal, rock and (far enough from the forming star) ice to condense out into tiny particles. (i.e. some of the gas turns back into dust). ... Once the larger of these particles get big enough to have a nontrivial gravity, their growth accelerates. ...

ATNF Home . ... 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 . ... Information & tools for observers . ... Australia Telescope Online Archive (ATOA) . ... ATCA | ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... The Australia Telescope National Facility Colloquium . ...

... 1024 x 1024 pixels (13.3 mm) . ... APOGEE U-47UV 13 um pixel, back-illuminated, UV enhanced . Read-out time: . 1 sec for the whole field, 1x1 binning . Pixel Scale: . ... 1.25 e-/ADU (left, right) . Read-out noise, e: . ... 0.1 e-/sec at T ~ -30C . ... 4096 x 4096 pixels (36.9 mm) . ... Apogee U16M-HC, 9 um pixel, KAF-16803, front-illuminated . ... 24 sec, 1x1 binning . ... 1.4 e-/ADU . ... 0.01 e-/sec at CCD T ~ -40C . ... ADU saturation: . ...

home publications > mercury . ... Publications of the ASP (PASP) . ... Collecting Cosmic Dust . ... Scientists go to Antarctica, the stratosphere, and the seafloor to collect material more precious than gold, dust that tells how the stuff of life was brought to Earth. by Monika Kress . About 40,000 tons of space dust and rocks, the leftover wreckage of our solar system?s birth, fall to Earth each year. ... Meteorites are bits and pieces of asteroids, the Moon, and Mars that have fallen to Earth. ...

Jeremy R. Walsh . ... Planetary nebula NGC 6302 (HST WFC3 UVIS image ). ... Archive Scientist, Data Management and Operations Division Lead of ST-ECF Advanced Data Products group including the Hubble Legacy Archive Project , the ACS slitless spectroscopy project and support for WFC3 slitless spectrometry . Planetary Nebulae: chemical abundances; kinematics; laboratories for atomic physics; extra-galactic planetary nebulae as cosmic probes . ... ADS . ... The Hubble Legacy Archive ACS grism data. ...

... The Large Telescopes Program Committee of Russian AS . ... Executive Secretary, e-mail: request@sao.ru . Telescope RATAN-600 Time Request deadline: I half-year (Jan. ... Program title .. ... Principal investigator .. ... Request status .. ... Retarded applications and ones not conforming to form will not be accepted by the Committee. ... In some exceptional cases the Program Committee Secretary can accept a request after deadline with permission of the Chairman of Committee or director of SAO RAS. ...

... 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. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Armagh Planetarium . ... Stars . ... Space Flight . ... Earth Satellites . ... Portrait of M8: This is the region of the nebula nicknamed the the т??Southern Cliffт?? and beyond it we can see the darkness of interstellar space interrupted by stars. Image credit: Julia I. Arias and Rodolfo H. BarbУЕ Departamento de FУ-sica, Universidad de La Serena (Chile), and ICATE-CONICET (Argentina)) . ... Astronotes . ... Subscribe to Astronotes . ...

Class 1 Introduction, Background History of Modern Astronomy The Night Sky, Eclipses and the Seasons Kepler's Laws Newtonian Gravity General Relativity Matter and Light Telescopes Class 2 Solar System Characteristics Formation Exosolar Planets Class 3 Stars The Sun Stellar Evolution of Low and High Mass Stars Deaths of Stars Exotic Stars Class 4 Galaxies Galaxy Classification Formation of Galaxies Galactic Evolution ... So far, one planet has been studied by this method. ...

... Dept. for Astrometry & Space Geodynamics . ... Dept. for Physics of Stars&Galaxies . Dept. for Space Plasma Physics . Dept. for Physics of Minor Celestial Bodies . Dept. for Physics of Planetary Systems . Dept. for Solar Physics . ... 2016,MNRAS, 2016MNRAS.tmp.. ... 2016,MNRAS, Vol.455 ,is.1,p.357-369. ... 2016,MNRAS, Vol.456 ,is.1,p.181-191. ... WASP- 22, WASP-41, WASP- 42 and WASP- 55. ... 2016,MNRAS, Vol.456 ,Is.1,p.990-1002. ... 2016,MNRAS, Vol.457 ,is.1,p.64-73. ...

Our publications in 2007 year Pustilnik, S. A.; Tepliakova, A. L.; Kniazev, A. Y.; Burenkov, A. N.; SAO; Russia; SAAO; Africa, South . eprint arXiv:0712.4205, submitted to Astrophysical Bulletin (SAO) (12/2007) . Pustilnik, S. A.; Tepliakova, A. L.; Kniazev, A. Y. eprint arXiv:0712.4007, submitted to Astron.Lett (12/2007) . ... Kniazev, A. Y.; Pustilnik, S. A.; Zucker, D. B. eprint arXiv:0707.4285, submitted to MNRAS (07/2007) . ... eprint arXiv:0707.4288 (07/2007) . ...

... You will then be redirected to a page where you can see the reference list in HTML form, or download them in PDF form. ... You may experience problems with this page if you are running older versions of netscape or internet explorer or do not have javascript enabled. In the case of such an error, we recommend you upgrade your browser and enable javascript. In the case of an error, or should you have any suggestions or comments, please send an email to sixto@naic.edu detailing the problem. ...

... This image shows a 7th magnitude star cluster, it's reflection nebula, an extended diffuse nebula and Barnard Dark Nebulae. The bright star at the top is omicron Persei (Atik). The cluster next to Atik is a star forming region with as many as 300 stars ranging from the brightest at B5 to low mass brown dwarfs. ... The obscuring dark areas are the Barnard Dark Nebulae 1 through 4. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... Jay Apt (Ph.D.) . NASA Astronaut (Former) . ... PUBLICATIONS: Dr. Apt shared his images and knowledge in the publication Earth in Orbit : NASA Astronauts Photograph the Earth , written in conjunction with NASA scientists Michael Helfert and Justin Wilkinson and published by the National Geographic Society. ... From 1976 to 1980 he was a staff member of the Center for Earth & Planetary Physics, Harvard University, supporting NASA s Pioneer Venus Mission by making temperature maps of Venus from Mt. ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... Ciel Espace, nouvelle formule, c'est . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil Grail a form†й deux nouveaux crat†иres sur la Lune . ... LRO observe deux nouveaux crat†иres . Le 17 d†йcembre 2012, les deux sondes de la mission Grail se sont †йcras†йes †а la surface de la Lune . ... Pour Ebb (Grail-A) : . ...