K.-H. Hofmann, T. Bl cker, G. Weigelt, and Y. Balega: . ... Annual Scientific Meeting of the Astronomische Gesellschaft at the Joint European and National Meeting JENAM 2001 of the European Astronomical Society and the Astronomische Gesellschaft, Sep 10-15, 2001, Munich, Germany . ... CIT 3 (= WX Psc = IRC +10 011 = IRAS 01037+1219), an oxygen-rich long-period variable evolving along the Asymptotic Giant Branch (AGB), is one of the most extreme infrared AGB objects. ... Back to Group Home Page ...

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 . ...

Venus in visible light (violet filter) 50k gif ; 25k jpg . ... image from Pioneer Venus 15k jpg ; 28k jpg ( caption ) . ... 7 pancake volcanoes, alpha region 227k gif ; 327k jpg . ... Lada Regio, 47 deg S, 25 Long, showing mountains and craters 121k gif ; 321k jpg . ... Gula Mons and Cunitz crater, flat image of gulacun.gif 250k gif ; 178k jpg . ... Crater Farm, Lavinia Region, small 107k gif ; 147k jpg . ... Central Ovida region, 1 deg s by 83 deg 191k gif ; 531k jpg . ... Pictures .. ... Venus .. ...

... 11 Yellow-Green (78% transmission): Contrasts well with the red and blue characteristics of surface features on Jupiter and Saturn. ... 82A Light Blue (73% transmission): Useful on the Moon, Mars, Jupiter, and Saturn, this subtle pale blue filter enhances areas of low contrast while avoiding significant reduction of overall image brightness. ... Meade Series 4000 Photo-Visual Color Filters may be ordered individually or in the following sets: . ... Meade Series 4000 Broadband Nebular Filters . ...

... Operating at a wavelength of 10 ?m, it produces a 135њx135њ image with a resolution of 0.9њ. ... The clouds move from the west-southwest. ... At the same time as the IR images, visible light images were taken with an Apple Computer QuickTake electronic camera. ... At 1540 MDT, the large central cloud is visible in both images. At 1544 MDT, a distinctive cloud is apparent near the center in the visible image and right of center in the IR. The performance of the SDSS cloud scanner is excellent. ...

... Astrophysics Group . ... Optical Interferometry . Magdalena Ridge Observatory Interferometer . ... OIFITS: A Data Exchange Standard for Optical (Visible/IR) Interferometry . ... Very Large Telescope Interferometer . ... The observatory will comprise two facilities, a single 2.4 meter telescope and an optical/infrared telescope array, the Magdalena Ridge Observatory Interferometer (MROI). ... 2010), ?Magdalena Ridge Observatory Interferometer: advancing to first light and new science? ...

You Can Make Stellar Images Brighter . Articles | ... A few months ago I wrote an article titled "You Can’t Make Them Brighter". So why am I now writing that you can make them brighter. ... The image of a focused star is actually a small disk called the Airy disk, named after the 19 th century scientist Sir George Airy. ... For a given aperture, a smaller Airy disk means that the light is focused to a smaller disk and is therefore brighter. ... www.astronomy.net . About Astronomy Net | ...

... Samara State Aerospace University Staff Kovalev Aleksey Andreevich . ... Kovalev A.A. , Kotlyar V.V. , Zaskanov S.G., Porfirev A.P. Half Pearcey laser beams // Journal of Optics. ... Kovalev A.A. , Kotlyar V.V. Lommel modes // Opt. ... A. 2014. ... Kotlyar V.V. , Ковалев А.а. | ... 2013. ... V.V. Kotlyar , A.A. Kovalev Hyperbolic Airy beams // 6th International Conference on Advanced Optoelectronics Lasers CAOL*2013, С 09-09-2013 по 13-09-2013, Sudak (Crimea, Ukraine), IEEE, 2013, P. 170-172 . ...

... Our Sun is part of a huge wheel-shaped collection of stars. ... Astronomers have long suspected it was a very massive black hole, and that every galaxy had such a central mass, created early in the history of the universe. ... 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. The velocity acquired in falling towards the black hole also helps it escape. ...

... Most Important Journals . Less Popular Astronomical Journals . Physics . Space, Selectial mechanics, .. Russian Journals . ... Astrophysics & Astronomy . ... Astronomical Journal . ... New Astronomy . ... Publications of the Astronomical Society of the Pacific . ... STScI News . Space Telescope Insitute Newsletter . ... Journal of Astronomical Data . ... Journal of High-Energy Physics (mirror in CERN ) [astro, grav, hi-energy .. ... Journal of Experimental and Theoretical Physics . ...

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. ...

... The light curves in 1996 . The light curves in 1997 . The Fourier spectra in 1997 . ... Max fluxes in flare of 1999 . ... The light curves in 1999 . ... The light curves in 2001 (decay of a flare) . The light curves in September 2001 - January 2002 . The light curves in November 2001 - January 2002 . The light curves in december 2001 - January 2002 . ... The light curves from September 2005 to February 2006 . The light curves from 12 January to 03 February 2006 . ...

Song: I Ran Artist: Flock of Seagulls I walk along the avenue i never thought I'd meet a girl like you with all that hair and tormy eyes the kind of eyes that hypnotize me through and I ran I ran so far away I just ran , I ran all night and day I couldn't get away a cloud appears above your head a beam of light comes shining down on you the ...

... About meteorites . ... Meteorite Encyclopedia . ... About laboratory . ... On the night of September 24-25, in the north of Irkutsk Oblast, local residents saw a brightly glowing space object draw a line across the sky and fall into the taiga. ... But scientists learned of the heavenly visitor only on October 3, when a fax arrived at the Institute of Sun And Earth Physics from Bodaibo. ... The first thing we did was to interview residents of villages located along the meteor's flight path. ...

... The general term for these waves is "Electromagnetic Waves". ... ASTR1001 Wavelengths · Electromagnetic waves, while all travelling at the same speed, can have different wavelengths (the distance between the crest of one wave and the next). ... Red Light: Wavelength 700nm Green Light: Wavelength 550nm Blue Light: Wavelength 400nm Ultra-Violet Light: Wavelength 300nm ASTR1001 The Electromagnetic Spectrum · Electromagnetic waves can have any wavelengths at all: anywhere from picometres to light-years....

... 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 Challenge Photo La temp†кte g†йante de Saturne (visible depuis d†йcembre 2010) . ... La temp†кte g†йante de Saturne (visible depuis d†йcembre 2010) . ... Etat du ciel . ... Espace annonceurs . ...

... 1999: . A new fiber multiobject spectrograph of the prime focus of the BTA was manufactured, designed for the spectroscopy of low and moderate spectral resolution of up to 70 objects at once, visible in the telescope's field of view sized 12'. ... The new spectrograph brought an opportunity to explore the objects with absolute magnitudes m=22-23 in the R-band. In 1999 the spectrograph was used for the BTA observations within two programs. ... Archive . ...

... There are preliminary series of photometric and radio spectral observations of the above-mentioned stars, archival data on the light curves of the stars, results of the search for OH and H 2 O maser emission in IRAS point sources that possess the IR parameters similar to Miras. ... The aim is a detailed study of the maser emission variability. ... In 1996-1997, astronomical observations of Mira Ceti-type stars (miras) were carried out in three spectral ranges: optical, infrared, and radio. ...

Halo around the Moon. Halo arises when the light beams refracted on the high clouds icy chips ina form of a six side prism. As a result we see a small halo circle with a 22°-radius. The big circle is formed by the beams paased through the side edge and the base of prismochips. Its radius is equal to 46° (nearly). The big circle is observed rarely and is shining weaker but it is easier to observe it near the Sun, if comparing with the small halo invisible in the bright Sun light. ...

... Formation of Galactic Subsystems in Light of the Magnesium Abundance in Field Stars. ... The Thin Disk(2006) . ... I. The Thick Disk. ... A Compiled Catalog of Spectroscopically Determined Elemental Abundances for Stars with Accurate Parallaxws. I Magnesium. ... Stars of extragalactic origin in the solar neighborhood.( ... Evidence for age delay between the formation of the old halo and the thick disk(2000) . ... Tel:work(8632)433985 . home(8632)333178 . Fax:(8632)434044 . ...