... Tonight's Sky . ... The Magazine . News . Observing . ... Community . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Open cluster NGC 2818, spiral galaxy NGC 2964, and spiral galaxy NGC 2976 . ... Astronomy for Kids . ... dust . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ... Astronomy Magazine . ...

... Bad Astronomy . ... Bitesize Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Dust has been on my mind lately. ... It made me realize: dust affects every aspect of astronomy. ... It's not the kind of dust you see around here on Earth. ... This has been known for a long time; you cen see it for yourself on a dark, cloudless night. Look for the Milky Way, the faint patch of light that is actually the glow from all the stars in our Galaxy. ... 2008 Phil Plait. ...

... Есть также демонстрация технологии Lunar laser Communication Demonstration. ... 1М (космический аппарат) . ... 2МВ (космический аппарат) . 3МВ (космический аппарат) . ... AGILE (космический аппарат) . ... Dawn (космический аппарат) . ... Far Ultraviolet Spectroscopic Explorer . ... International Ultraviolet Explorer . ... Lunar Atmosphere and Dust Environment Explorer . Lunar Crater Observation and Sensing Satellite . Lunar Prospector . ... Прогресс М-01М . ... Союз (космический корабль) . ...

Next: Software for Geodynamical Researches Used in the LSGER IAA . ... We present DIRT , a Java applet geared toward modeling a variety of processes in envelopes of young and evolved stars. ... A1.00E+00 /I1.00E+13/models.tgz /I3.00E+13/models.tgz A1.00E+01 /I1.00E+13/models.tgz /I3.00E+13/models.tgz . A5.00E+02 /I1.00E+13/models.tgz /I3.00E+13/models.tgz Each models.tgz file is untarred into the temporary area on the server, from which the model data are transferred to the client applet. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Colin Johnston . ... This submillimetre-wavelength image of the region surrounding the reflection nebula M78 made with the Atacama Pathfinder Experiment (APEX) telescope (overlaid on a view of the same region in visible light) shows the position of interstellar dust grains (orange) to show where new stars are being formed.( ... Here you will find the latest news and views from the fascinating worlds of astronomy and space exploration. ...

... In brief: the frequency-dependent radiative transfer equation is solved for a dust under assumption of spherically-symmetric geometry for its distribution taking into account particle size distribution and quantum heating effects for the very small dust particles. ... Table: Model parameters for IRAS04296+3429. ... parameter . ... hot dust shell) . ... The best fit to the spectral energy distribution of IRAS04296 is shown by heavy solid line (see Table2 for details concerning parameters of the model...

... Сегодня: 10 апреля 2016 г. Космический зонд Ulysses ведет исследования Солнца с его полярной орбиты, плоскость которой перпендикулярна плоскости солнечной системы. ... В частности во время пролета мимо Юпитера Ulysses с помощью прибора DUST зафиксировал потоки пыли, устремляющиеся от Юпитера в открытый космос. ... Источником этой пыли являются многочисленные извергающиеся вулканы на Ио - одном из спутников Юпитера. ... Солнечный зонд Ulysses поймал пыль в окрестностях Юпитера . ...

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 . ...

... Master . Master net Homepage . ... MASTER-Amur . ... Amb: . Dust: . ... Direct . 23s . ... 45s . ... observed area: . best limit: . Cameras . ... MASTER-Tunka . ... MASTER-Ural . master.kourovka.ru . ... MASTER-Kislovodsk . ... MASTER-Crimea . ... MASTER-SAAO . ... MASTER-IAC . ... MASTER-Argentina . master.sai.msu.ru:8080 . master.sai.msu.ru . ...

http://www.mso.anu.edu.au/~ralph/dustypn.html . ... We present theoretical self--consistent models of Planetary Nebulae including detailed dust heating. ... We show that dust has a strong effect on the thermal structure and emission line spectrum of highly ionised species in Planetary Nebulae. ... Planetary Nebulae, Dust, Atomic Physics, Plasmas . You can get the file individually below or just http to my data area: . http://www.mso.anu.edu.au/~ralph/data/dustypn . ...

Dear Sergei, I would like to attend the colloquium and present the report. \title[ AGN Dust Holes ] { Reverberation Radii of Dust Holes in Active Galactic Nuclei } \author[Oknyanksij \ Horne] { V. L. Oknyanskij$^{1,2}$, Keith Horne$^{2}$ \thanks{Send offprint requests Received ; in original form } \maketitle \begin{abstract} We infer the radii of the dust-free zones around NGC~4151, NGC~7469, and GQ~Comae from cross-correlation time delays between optical and infrared lightcurves. ...

... 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. ...

... Future seminars . P a s t seminars . Seminar council . ... Computer simulations of the orbital evolution of Jupiter-family comets (JFCs), resonant asteroids, and asteroidal, trans-Neptunian, and cometary dust particles were made. ... For dust particles we also considered radiation pressure, Poynting-Robertson drag, and solar wind drag. ... The maximum probability of a collision of an asteroidal or cometary dust particle with the Earth during its lifetime was for diameter d~100 microns. ...

The Crab : the absorption model and consequences for absolute effective area calibration Jelle S. Kaastra SRON Using the Crab nebula as calibration source · Good calibration sources should obey: 1) Simple continuum 2) Known continuum 3) Constant in time 4) Point source 5) No dust scattering halo Crab only obeys rule 1 and 3 partially, but except for White dwarf spectra there is nothing better Extended emission · ... Caveat: curved continuum spectrum nebula? ...

... 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. ...

SVS KRISTALLIZATOR PLASMA CRYSTAL . ... Discharge rate of generated plasma - 13.56 MHz . ... to record the generation process of plasma-dust structures ; . ... Phase 1a . Investigation of plasma-dust structures in gas-discharge plasma of a high-frequency capacitive discharge. ... Investigation of plasma-dust structures in plasma of glow discharge of direct current. ... Investigation of plasma-dust structures in space environment exposed to UV Sun radiation, plasma flows and ionizing radiation. ...

The galactic absorption is computed from Schlegel's maps . Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds", Schlegel et al 1998 . ... For Galactic objects, ag is also provided, although it does not correspond to the real extinction toward a given object (because it integrates the extinction through the whole depth of the Galaxy; for nearby objects it over-estimates the extinction). ... ag(I342)=ag(Schlegel)*3.50 . ... ag(I10)=ag(Schlegel)*3.50 . ...

University Satellites and . Space Science Education . ... Module "Dust" of equipment "Chistota" on research dust vicinity a SC "Photon-M" . ... Module "Dust" is intended for data gathering about characteristics of dust particles in vicinity SC. ... Gauges were combined and made measurement of temperature of a surface of the gauge, fixed presence of a sunlight, registered flying by dust parti-cles in the optical way, measured weight of the adsorbed substance on a surface of the quartz resonator. ...

.., -- Spitzer, 8 , , , . - NGC 925 38" Spitzer 160 - NGC 925 12" 160 Herschel q PA H - HII Holmberg II H S = NB ( T M dust dust ) - = k 250 S 250 D2 B ( 250 , T ) 3+ I ( 1) = I ( 2) ()( 1 2 e hc e hc / 2 kT / 1 kT -1 -1 ) M83, Foyle et al.2012 M83, Bendo et al.2011 Herschel: , ; , : vs. HII vs. qPAH , vs. HI vs. CO vs.

The interstellar medium is the material that lies between the stars in a galaxy . This material can exist in several phases with a wide range in temperature (from tens of degrees to tens of millions of degrees Kelvin). In the coldest regions the material consists of molecular gas and dust; in the hottest regions the material is almost completely ionized. The Role of the Interstellar Magnetic Field A. Goodman . The Diffuse ISM High-Latitude Clouds A. Goodman . ... 617) 495-7062 . ...