... Sun images . Magnetic storms online . Sun flares . ... Active areas . September : 2005 . ... X-ray emission of the Sun from 08.09.2005 to 09.09.2005 (GOES-) . Today, 15 solar flares were observed: . Active region . ... Flare of class M1.0 . 808 . ... Yesterday, 8 solar flares were observed: . ... Last updated: September 10, 2005 00:00 UT . ... 1953-2016 Laboratory of X-ray astronomy of the Sun, LPI RAS, Russia . ...

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• Solar flares online January 30, 2015
• Solar flares online October 01, 2012
• Solar flares online January 29, 2015

... Tabs . ... 90% -contents change but tab appearance is constant . ... HTML for the tabs div, tabs, and contents (see HTML tab) . ... div id="tabs"> <span id="tab1" class="tab tabActive" >Overview</span> <span id="tab2" class="tab" >The CSS</span> <span id="tab3" class="tab" >Event Object</span> </div> . div id="tabs"> <img id="tab1" class="tab tabActive" src="img/discography.gif" hoversrc="img/discographyo.gif" activesrc="img/discographya.gif" width="135" height="28" alt="discography" /> </div> . ...

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• Space position
• AXAF-Chandra
• Conclusions

... Introduction: E-, M- and S-type asteroids are widely considered as remnants of differentiated parent bodies; specifically, Ms might have been their cores [e. g., 1, 2]. The conviction is based on the visible-range albedo (medium to high) and overall spectral curves (slightly reddish to red) of the small planets corresponding to these of metal iron and igneous silicate assemblages. ... It seems the spectral features superimpose to the spectral characteristics of metal iron and igneous silicates. ...

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• http://selena.sai.msu.ru/Rod/Publications/ms38/ms015.pdf
• http://selena.sai.msu.ru/Symposium/ant.doc
• http://selena.sai.msu.ru/Symposium/ant.pdf

... News . Observing . ... Behemoth black hole found in an unlikely place . ... New class of black holes discovered . ... A new class of black hole, more than 500 times the mass of the Sun lies approximately 290 million light-years from Earth, an international team of astronomers recently discovered. ... The new discovery is the first solid evidence of a new class of medium-sized black holes. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

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• New class of gravitational lenses | Astronomy.com
• Ask Astro web extra: Will all white dwarfs, regardless of the class of star
• Kepler discovery establishes new class of planetary systems | Astronomy.com

... Galaxies with polar rings (PRGs) are a unique class of extragalactic objects, consisting of a ring or disk of gas, stars and dust orbiting in a plane nearly perpendicular to the disk of a central galaxy. ... At present, there are only about two dozen kinematically confirmed galaxies in this PRG class, mostly from the Whitmore et al. (1990) catalogue, based on photographic images. ... Examples of object from our catalogue SPRC (=SDSS-based Polar Ring Catalogue). ...

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• Hardware sector, archive 2013

... Space flight . ... Space Hotel . ... The program of deployment of small orbital station (SOS) consisting of a family of spacecrafts and module-spacecrafts represents a consecutive realization of flight scenarios with consecutive building up of functions. ... Scenario 1 - the regular and revised spacecrafts of class "Soyuz" - TMSC and MNMSC (MNMSC-cargo, MNMSC-MR) are used, pls. see fig fig.8 . ... The terms of transition to this scenario are determined by terms of readiness of one or another module....

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STEP INTO THE BLUE - MEADE INSTRUMENTS PRODUCT GUIDE . ... Telescopes . LX850 Series . ... Superb optical performance coupled with time proven computerized pointing and tracking has made the LX200 ACF series a best-seller in the high-performance telescope class. ... MeadeтАЩs LX90 ACF is a favorite of astronomers making the jump to their first, serious, larger aperture telescope. ... Coronado Accessories . ... Weather Stations . Professional Series . ... Series: Professional Weather Stations . ...

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• Products

Russian version of HP . ... StarCalc is the fastest professional astronomy planetarium & star mapping program for Windows 9x/ME/NT/2000/XP (StarCalc version for PocketPC computers you can found here ). ... Extensibility : This program is based on common "Plugin StarCalc interface to catalogs and object groups", which allows program to add new modules as Plugins. ... Welcome to the Pocket StarCalc Home Page: . ... Some bugfixes in eclipses" and line" plugins - see the new versions in downloads page. ...

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... Basics of Group Theory Definition 1. A group G is a (finite or infinite) set of elements g1 , g2 , g3 , . ... Definition 2. ... Each element of a finite group may be represented as a power or product of powers of a certain finite number of elements cal led generators of the group. ... Point Groups Any transformation which brings a body into coincidence with itself can be decomposed into elementary transformations: 1) rotation about an axis, 2) reflection in a plane, 3) translation by some vector. ...

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• SNL ISSP RAS
• CdSe Safety Data Sheet
• ZnTe Safety Data Sheet

... Bad Astronomy . ... I think I will break from my usual format of Bad Astronomy/ Good Astronomy by saying that the way we define seasons currently is not strictly bad, but I feel (in my opinion!) that it could be better. The definition of when the seasons begin is at the moment of solstice or equinox; that is, winter (in the north) starts on December 22 nd and summer starts on June 22 nd . ... Now imagine breaking up the Sun's 46 degree up-and-down yearly swing into 1 day intervals. ...

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• Phil Plait's Bad Astronomy: Info
• Phil Plait's Bad Astronomy: Bad TV
• Phil Plait's Bad Astronomy: Mad Science

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• Vladimir Marsakov Publication List
• Vladimir Marsakov Abstracts

Astronotes Armagh Planetarium's Stellar Blog! ... Planets . ... Earth Satellites . ... A Scorched World: too distant to image, Kepler-10b is depicted here by a NASA artist (Image credit: NASA/Kepler Mission/Dana Berry) . The Kepler satellite looks for planets passing between their parent star and Earth. ... Placed beside our homeworld, Kepler-10b would be about 40% wider than Earth. ... Possibly only occasional jagged islands of metal and rock break the monotony of its glowing lava oceans. ...

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• Percival Lowell: a man with a mission and vision | Astronotes
• Christmas Card Competition Winners 2015 | Astronotes
• To Space and Back with Reid Wiseman | Astronotes

The Star called the Sun. The Sun as the star . ... The visible star value . ... Spectrum class . ... 149 597 870 km . ... The Solar energy sourse is the core transformation of the Sun, where temperature is 15 000 000 K. The energy from inside is carried by irradiation and then in the external layer with 0,2 Ra of thikness - by convection. ... The Earth, situating far from the Sun (149 mil km), receives about 2.1017 W of the Solar beam energy (see item "The Solar constant" ). ...

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• aruptivnstarse

Blackholes2 Forum Message . ... Cahill Links . ... 1. physics/0401047 [abs, ps, pdf, other] : . ... Comments: 11 pages, 3 eps figures. ... 2. physics/0312082 [abs, ps, pdf, other] : . ... 3. physics/0309016 [abs, ps, pdf, other] : . ... 4. physics/0307003 [abs, ps, pdf, other] : . ... 5. physics/0306196 [abs, ps, pdf, other] : . ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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• Very Funny?! - an Astronomy Net God Science Forum Message
• Communications For Your Astronomy Event - an Astronomy Net Article
• Observational Stellar Astronomy - an Astronomy Net Article

Ground Support of RadioAstron . Control and Tracking Stations . RadioAstron satellite control (command transmission, telemetry, orbit measurements) will be conducted from Evpatoria and Bear Lake control stations. ... Coarse orbit measurements will be carried out from control stations. Each measurement takes ten minutes. ... Orbit measurements at tracking stations give only radial component of spacecraft velocity but the measurements are going continuously during observing sessions. ...

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• Kurt Vladimir, ASC

... WSDL for http ://vo.astronet.ru/ws/wcsfix/wcsfix.cgi created by Pod:: WSDL version: 0.05 on Sat Jan 27 20:10:18 2007 -- wsdl :definitions targetNamespace= http ://vo.astronet.ru/wcsFixService xmlns:impl= http ://vo.astronet.ru/wcsFixService xmlns: wsdlsoap = http ://schemas.xmlsoap.org/ wsdl /soap/ xmlns: wsdl = http ://schemas.xmlsoap.org/ wsdl / xmlns:soapenc= ...

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• astro-ph