spaceweb@oulu.fi - last update: 18 February 1997, 1100 UT (RR) . Black aurora is a lack of auroral emission in a small, well-defined region within an otherwise uniform, diffuse background or within auroras exhibiting a degree of shear behaviour intermediate between that of diffuse and discrete aurora (e.g., Davis, 1978). It appears to be a common feature of the midnight sector during late substorm recovery phase (Trondsen and Cogger, 1997). ... 30 , 371-380, 1978. ... 102 , 363-378, 1997. ...

Добро пожаловать, Гость . ... В теме В разделе По форуму . ... Горизонты науки о Вселенной (Модераторы: Дмитрий Вибе , AlAn ) ? NEW Black Hole Paradigm . предыдущая тема следующая тема . ... 0 Пользователей и 1 Гость просматривают эту тему. Гость . ...

... Сегодня: 10 апреля 2016 г. Американская авиастроительная компания Sikorsky Aircraft объявила о намерении разработать беспилотную модификацию вертолетов модели Black Hawk, сообщает Associated Press. ... Black Hawk - главный боевой вертолет американских ВВС. ... В феврале 2000 года дочерняя структура Sikorsky - компания Schweitzer USA, начала разработку проекта беспилотного вертолета вертикального взлета RQ/MQ-8 Fire Scout на базе коммерческого вертолета Schweizer 330. ...

XMM-Newton Science Analysis System . ... These subroutines calculate the power (in watts) radiated per unit surface area (m2) per unit solid angle (sr) by a black body at temperature='kelvin'. The power can be calculated either per unit frequency, at a given frequency (both in hertz), or per unit wavelength (in metres) at a given supplied wavelength (in angstroms). ... Per unit frequency . Per unit wavelength . XMM-Newton SOC/SSC -- 2007-07-08 ...

Next: Elliptical Galaxies. ... NGC 4258 is a nearby ( D = 6.4 Mpc) active spiral galaxy with high luminosity H 2 O maser emission. ... This provides the most compelling evidence so far for a black hole in the centre of a galaxy. ... As NGC 4258, the galaxies NGC 3079, NGC 1068, NGC 4945, and Circinus each host an H 2 0 megamaser (apparent isotropic luminosity > 10 L ). ... Weaker H 2 0 masers are also known in NGC 253, M82 and a few other galaxies (see Greenhill et al. 1990, and references therein). ...

... Posts tagged ?black box? ... Another deduced conclusion from reading preprints listed in arxiv/astro-ph is that astronomers tend to confuse classification and clustering and to mix up methodologies. They tend to think any algorithms from classification or clustering analysis serve their purpose since both analysis algorithms, no matter what, look like a black box . ... Category: Algorithms , arXiv , Astro , Bad AstroStat , Cross-Cultural , Data Processing , Frequentist , Jargon , Methods , Stat | ...

... 08.04.2016 12 апреля состоится гала-концерт Студенческой весны СГАУ . ... 08.04.2016 В СГАУ состоялся День карьеры . Информация Новости Команда СГАУ 'Black President' прошла отбор на чемпионат Европы по фитнес-аэробике . ... Команда СГАУ Black President стала финалистом чемпионата России по фитнес-аэробике и получила путевку на Чемпионат Европы. ... Команда Black President пробилась в финал, и, заняв 4-е место, прошла отбор на чемпионат Европы 2015 г., который пройдет в начале мая в Голландии. ...

... I may have lied to you and about you, and made a few pronouncements a bit too sweeping, perhaps, and possibly forgotten to tag the basses here or there, And damned your extravagance, and libeled your tastes and libeled your relatives, and slandered a few your friends O.K., Nevertheless, come back. ... Come back.. ... We will invite the undertaker, who lives beneath us, And a couple of boys from the office, And some other friends. ... And a few reporters, if anything should break. ...

Общая Астрономическая Конференция > Товары для астрономов > Барахолка . SW ED80 Black Pro (21 т.р.) и аксессуары . ... Поиск . ... Созвездия (поиск и описание) .. Созвездия южного неба (поиск и описание) .. Осенние созвездия (поиск и описание) .. Летние созвездия (поиск и описание) .. Околополюсные созвездия (поиск и описание) .. Весенние созвездия (поиск и описание).. Зимние созвездия (поиск и описание) .. ... Галактики (поиск и описание) .. ...

Plate Cartridge Modification and Mounting: April 30, 1999 . After the spectrograph corrector was mounted, French Leger, with Steve Bastian and Jon Brinkmann, begin to modify the plate cartridge for a guide pin to the corrector and to mount the cartridge on the telescope. ... The plate cartridge is moved to the telescope and French begins to ease the slit heads on the cartridge to the opening in the bottom of the spectrograph (see the hole above the black slithead box?) ...

... Astronomy news . ... NASA's Spitzer Images Out-of-This-World Galaxy . ... It is spiral-shaped like our Milky Way, with long, spindly arms of stars. The "eye" at the center of the galaxy is actually a monstrous black hole surrounded by a ring of stars. In this color-coded infrared view from Spitzer, the area around the invisible black hole is blue and the ring of stars, white. ... The ring around the black hole is bursting with new star formation. ...

... Объективы PENTAX K . ... Объективы серии Limited . ... Объектив SMC Pentax FA 43мм f/1.9 Limited Black . Высококлассный объектив для зеркальных фотокамер эксклюзивной серии Limited Black . ... Объектив серии Limited Black с фокусным расстоянием 43 мм имеет классическую оптическую схему типа "Планар". ... Объектив можно использовать без ограничений с пленочными и цифровыми зеркальными камерами PENTAX. ... Крышка 49 мм для объектива SMC FA 43/1.9 . ... Чехол мягкий для объектива FA 43/1.9 Ltd. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Space Flight . ... Posted on September 27, 2013 | 5 Comments The discovery of new planets beyond our Solar System has further expanded on what we thought we knew about what is out there. ... Continue Reading.. Posted on August 30, 2013 | ... Posted on July 18, 2013 | ... Posted on June 17, 2013 | ... Posted on May 20, 2013 | ... Posted on April 17, 2013 | ... Posted on March 22, 2013 | ... Posted on February 8, 2013 | ...

Stellar Clusters are very useful laboratories for empirically studying stellar evolution. ... All cluster stars are at the same distance . All cluster stars have the same physical age . ... CM diagram Young Cluster In this case we see the Main Sequence fully represented. The blue dots represent massive stars with short main sequence lifetimes. ... Thus, identifying the most massive star which is still on the main sequence is an effective means of determining the age of a stellar cluster. ...

. Black Hole . Nuzhnaya Sveta . Lisenko Irina . Kostuk Denis . Eremenko Veronica . Doskach Kseniya . Martinova Zhenya . Home page Millennium Page Smiling Faces View out Of the Window (1999-2000) Birthday FutureLander .

... V4641 Sgr is known as a detached binary containing a 9 Msol. black hole and an A0 type companion. ... Spectra of V4641 Sgr were taken by us using SAO 1-m telescope between May 23.972 and 24.002 UT (the orbital phase of 0.35), wavelength range 3900-7500A, resolution 8A, S/N~30-40. ... These observations show essential light excess over the quiet light level seen only in the orbital phases between -0.25 and +0.25 with the maximum value of 0.15 mag in the V band at the black hole inferior conjunction. ...

Proceedings of the Particle Physics and Early Universe Conference (PPEUC). For this paper: postscript PPEUC CMB index 1 Introduction.. ... Blackett Laboratory, Imperial College, Prince Consort Road, London SW7 2BZ, U.K. An imploding shell of radiation is shown to create a 2-D black hole within the framework of the `` '' theory. ... The radiation emitted very far from the black hole is thermal with temperature . ... 4 Black hole structure . 5 Thermal radiation and back-reaction . ...

Lectures . ... Home Lectures Lecture Series 2011-2012 Lecture Series 2011-2012 ? тАЬAt Last: Seeing Supermassive Black Holes Shred StarsтАЭ ? Glennys Farrar . ... Lecture Series 2011-2012 . ... Lecture Series . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... Amateur Astronomers Medal . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

... Over the first 4 years, its X-ray telescopes eROSITA and ART-XC will survey the whole sky with a record sensitivity in the 0.5-10 keV energy band. ... The goal of the second international Spectrum-RG conference is to discuss the different scientific topics addressed by the mission, synergies with surveys at other wavelengths, and requirements to follow-up observations.Contributed talks and poster presentations are invited on the topics related to the SRG science goals. ... Active galactic nuclei . ...

... Date : 20/10/2014 . ... Skywatcher 120 ED Black Diamond sur NEQ6 pro Go-To ; Extendeur 2,5 x Televue Powermate coulant 31,75 ; Adaptateur photo Televue pour Powermate 2,5 x et 5 x ; Oculaire Orion Stratus 8 et 17 mm ; Bague T Nikon Takahashi ; Alimentation de terrain Orion Dynamo pro 17 Ah ; Etat neuf (achetГї en juin 2014) . Prix : в'ѓ2400 . ... maison forestiГЕre de la croix Nicolle 2 bis rue de l'hotel de ville / 88600 / brouvelieures . 0623806135 ...