Yu.V. Milanova, A.F. Kholtygin . He, C, N, and O Abundances in an Ensemble of Galactic PNe (in russian) Astronomy Letters,, 35 , 518-533 ( 2006 ) Original Russian Text are published in Pis'ma v Astronomicheskii Zhurnal , 35 , No. 8, pp. 563-573 ( 2009 ) . ... The He abundance is determined with an accuracy of 0.06 dex, while the errors in the C, N, and O abundances are 0.1-0.2 dex. ... The elemental abundances in PNe of various Galactic subsystems and the Magellanic Clouds have been analyzed. ...

... 2013 May 14 . Galaxy Collisions: Simulation vs Observations . Images Credit: NASA , ESA ; Visualization: Frank Summers ( STScI ); Simulation: Chris Mihos ( CWRU ) Lars Hernquist ( Harvard ). Explanation: What happens when two galaxies collide? Although it may take over a billion years, such titanic clashes are quite common. ... Pictured above is a computer simulation of two large spiral galaxies colliding , interspersed with real still images taken by the Hubble Space Telescope . ...

... Dept. for Astrometry & Space Geodynamics . ... Dept. for Physics of Stars&Galaxies . Dept. for Space Plasma Physics . ... Solar telescopes . ... 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. ... Observations . ... In 2002 regulary observations of comets with using of CCD camera S1C started at Andrushivka Astronomical Observatory, near Zhytomyr. ...

... Observing may be done from any location. ... See this link for further details, limiting magnitude charts, and star count tables: http://www.imo.net/visual/major/observation/lm Proof Point Information : Shapley-Sawyer Classification: Reference: http://x.astrogeek.org/articles/article.php?article_id=15 Brief Description: I - High concentration toward the center; E.g ., NGC 6864, M75 II - Dense central condensation; E.g ., NGC 7089, M2 III - Strong inner core of stars ; E.g ., ...

... Because you are a newly created organization, we are not now making a final determination of your foundation status under section 509(a) of the Code. However, we have determined that you can reason-ably be expectqd, to- be a pubricly supported organization described sectiongn in )WCl), t futCl lr[1o U-10 Accordingly, you will be treated as a publicly supported organization, and not as a private foundation, during an advance ruling period. ...

... Phys. (U.S.S.R. ) 42, 1416-1418 (May, 1962) A series of size effects , which are determined by the relationships between the size of electron orbits and the size of a metallic sample, can be observed when a sample having a long fre e path is placed in a constant magnetic field. ... When the field is increased the radius of the electron orbit decreases, and the numbe r of return s of the electron throug h the skin layer durin g the fre e path time increases. ... The sample had a thickness of 0.54 mm ...

. Home . Structure of Data . Description . Catalog . Publications . VO . ЮБ 2000 . 23:56:37.5 . ЮД 2000 . +61:24:02 . l . 116.420 . b . -0.776 . diameter . 4.0' . (m - M) 0 . 12.2 0.17 . distance . 2750 220 pc . E(B - V) . 0.49 0.02 . log(t) . 8.2 0.05 . SAO 1-m, BVRI observations (777 measurements) VOTable . 2MASS data VOTable . IPHAS IDR data VOTable . Developed by the Team . Send us your questions or feedback

... For more distant stars we must use other techniques. ... Hence if we see a distant galaxy and can pick out any cepheids lying within it, we can calculate its distance. ... Here then is another method to gauge the size of the Universe and there are yet more. volume at high enough temperature a nuclear fusion reaction sweeps across the white dwarf's surface and eventually we will see a spectacularly bright new star (hence nova) in our skies. ... Why is this relevant to the size of the Universe? ...

Astronomy Discussion Forums . Forums: . ... Discussion Forums . ... Observations Of Mars . Forum List | ... Post Message | ... Using a 15mm plossol and my 2X barlow I can make out the south polar ice cap and some serface detail. ... Login to Post . ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... COMPUTER SIMULATION OF RADIOWAVE MULTIPLE SCATTERING EFFECTS IN IONOSPHERE USING MONTE-CARLO METHOD . ... Distribution of reflected radiation on the ground is computed. ... Such influence can be remarkable if the scattering is multiple, i.e. the optical thickness for the scattering process is considerably greater than a unit. ... Radiation energy transfer in the slab is modeled by distribution of some particles carring small portions of radiation energy. ... The isotropic plasma approximation is...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... Since the Irkutsk IS radar is based on station "Dnepr", which was not intended for IS measurements, we made a serios effort to modernize this station in order to carry out ionospheric observations. Four main directions of the development of the radar experimental base: . modernization of the radar receiving system; . development of primary processing and measurement control methods; . ...

... Satellite data ] . SMIS ] . The program calculates the satellite orbit using ephemeris data in either predict-telegrams (APT predict, TBUS data) or 2-line NORAD format (TLE data). It determines the start and finish times of acquisition session and stores the data for antenna control during the receipt onto the hard disk. The program creates session schedules, supports selection of specific regions for observation and automatic filtration of satellite passes over the selected regions. ...

... GCN 1488 . ... GCN 2001 , 2024 , 2046 , 2051 , 2054 , 2079 , 2094 , 2105 , 2108 , 2119 , 2198 , 2204 , 2220 , 2260 , 2299 , AstL (2003) , ApJ (2004) . ... GCN 2821 , 2826 , ApJ (2010) . ... GCN 3139 , ApJ (2010) . ... GCN 3493 , ApJ (2010) . ... GCN 3718 , ApJ (2010) . ... GCN 3853 , 3864 , 3896 , ApJ (2010) . ... GCN 5173 , 5177 , 5183 , 5186 , 5189 , 5193 , AstL (2007a) , AstL (2007b) , A (2010) . ... GCN 5524 , ApJ (2010) . ... GCN 9037 , ApJ (2010) . ... Russian-Turkish 1.5-m Telescope (RTT150) ...

. To see a Russian version of this page click here . (Senior Researcher. Graduated from Moscow State University (MSU) in 1982, Ph.D. 1986, MSU) . A member of EAS and IAU. Fields of interest: hot massive stars, close binary systems: optical photometric and spectral observations, X-ray observations; ill-posed problems, X-ray astrophysics. My publications (ADS link) . Linux on CLEVO 8750 (old stuff) . Phones/addresses of my university mates graduated in 1982. E-mail: igor@sai.msu.ru .

Общая Астрономическая Конференция > Все про астрономическое оборудование > Астрономическое оборудование . Фильтр Mars Observation . ... Поиск . Сообщения за день . ... oleg oleg . ... Фильтр Mars Observation повышает контраст буквально всех деталей поверхности. ... Отправить личное сообщение для oleg oleg . Найти еще сообщения от oleg oleg . ... astroserg . ... Отправить личное сообщение для astroserg . Найти еще сообщения от astroserg . ... Сообщение от astroserg . ... Mars Odyssey . ...

. Image where taken 11.03.97, 02:25.3 UT (exp 30s) at the Moscow observatory of SAI , using 0.10-m F/2 camera (installed on AVR-1 refractor) with CCD SBIG ST-8 and with B filter . by . V. Esipov and A. Martis . [ Go to next observation ][ Go back to Our observations list ] . Andrew A. Martis . martis @ sai.msu.ru .

... part 2 | ... Part 1 . The new concept of formation and development of the Solar system. ... Thus, the initial pulse of the rotation of a protosolar cloud of the solar system was determined as a result of the diversion of a part of the moment of the rotational pulse of the Galaxy. ... Besides this new approach to the pre-solar system as a system of the destroyed vortex structure, we can understand now a number of other peculiarities of the Solar system's structure. ...

Prognoz satellites magnetometer observation database . This page presents data of the magnetic field measurements in the outer magnetosphere and in the solar wind made by Prognoz and Interball-Tail satellites. Magnetic field measurements on the Prognoz satellites were carried out by I ZMIRAN 's Space Magnetic Research Laboratory ( SMRL ) in 1977-1984. ... Prognoz-7 and -9 provide observations at a later stage of the ISEE mission. ... Link to Prognoz-6 data . ... Link to Interball-T data . ...

... The described algorithm is suitable for measurements of complex images of stars. ... a) the zero-based number of stars in the complex (multicentric) image, . b) set of preliminary coordinates - x i , y i , for all stars, index i is number of a star, . ... i - index of a star in the complex image; . ... These parameters are calculated by a nonlinear method of a least squares.The main output parameters of this algorithm are x i , y i ; where the index i is number of a star in the multicentric image. ...

Альтернативный форум . Scientific.ru Все форумы . ... Уникум - 30.01.2007 16:31 . ... Все-таки, чем отличается финслерова геометрия от геометрии Декарата, геометрии нашей Вселенной? ... RADAR AND OPTICAL OBSERVATIONS . ... Shapiro effect); the transition from the coordinate time, . ... if the corresponding observation times differed by . ... Time, 30.01.2007 09:57 . ... Re: пузырек на дне бака sleo, 30.01.2007 15:50 . ... Re: Отдел геометрии. ... Re: Оффтоп. to Time Time, 30.01.2007 23:39 . ...