... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2007 April 2 . An Active Sunspot Viewed Sideways . Credit Copyright : Hinode , JAXA , NASA . Explanation: Why are there dark spots on the sun? ... In the center of the above image is a sunspot, but not seen in the usual orientation --this sunspot is seen sideways. ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . ...

Еще в разделе: (Показать все результаты (>8322) - www.sai.msu.su/ )

• APOD: 2004 July 26 - A Large Active Region Crosses the Sun
• APOD: 2000 June 8 - Active Regions, CMEs, and X Class Flares
• APOD: 2006 July 10 - Dark Sun Sizzling

Nowadays at the Department the experimental and theoretical investigations, including astronomical and ionospheric observations, active experiments with space vehicles are taking place. ... Solar Corona physics and erruptive phenomenae. ... Stellar astronomy. ... The Department has organized and put into practice more then 50 expeditions for observation of Solar ecllipces, aurorae polaris, comets, meteor streams, controlled space experiments, and also for investigations of geophysical characteristics. ...

Еще в разделе: (Показать все результаты (>88) - space.univ.kiev.ua/ )

• Solar Physics

... AR1520: Islands in the Photosphere . ... Credit Copyright: Alan Friedman ( Averted Imagination ) Explanation: Awash in a sea of plasma and anchored in magnetic fields , sunspots are planet-sized, dark islands in the solar photosphere , the bright surface of the Sun. ... They lie in the center of active region AR1520, now crossing the Sun's visible face. ... Publications with keywords: active region . Publications with words: active region . ... Active Region 1002 on an Unusually Quiet Sun . ...

Еще в разделе: (Показать все результаты (>168515) - www.astronet.ru/ )

• XWare > APOD
• Journal "Peremennye Zvezdy"
• Астронет > TRACE and the Active Sun

... Sun images . ... Sun flares . ... Active areas . April : 2016 . ... The following regions with sunspots can be now observed on the Sun's surface . Group number . ... Group length (in degrees) . ... Coordinates and other characteristics of active regions are issued for April 09, 2016 00:31 UT The following H-alpha plages without spots can be currently observed on the Sun's surface . ... Coordinates and other characteristics of active regions are issued for April 09, 2016 00:31 UT . ...

Еще в разделе: (Показать все результаты (>19509) - www.tesis.lebedev.ru/ )

• Sunspots and active regions April 01, 2010
• Sunspots and active regions April 01, 2012
• Sunspots and active regions April 01, 2008

... 368, 2007 Petr Heinzel, Ivan Dorotovi and Robert J. Rutten, eds. c Some Structural Prop erties of Solar Magnetic Fields B. Ioshpa, E. Mogilevskii and V. Obridko IZMIRAN, Troitsk, Moscow Region, Russia Abstract. We discuss some results of the study of spatial characteristics of solar magnetic fields. ... The global fractal numbers of space distribution of magnetic field on solar surface is closely connected with the mean absolute values of the longitudinal magnetic field for this surface. ...

Еще в разделе: (Показать все результаты (>889) - www.izmiran.rssi.ru/ )

• conferences
• publications
• LARGE-SCALE PHENOMENA AT THE SUN ASSOCIATED

... 1993: . Based on the microwave observations of the Sun on the RATAN-600 and the Large Pulkovo Radio Telescope with high spatial and frequency resolution a new model of interaction of the photospheric and coronal magnetic fields in active regions was finalized. ... Archive . ...

Еще в разделе: (Показать все результаты (>351) - mavr.sao.ru/ )

• Solar system sector, archive 2009
• Solar activity
• Detection of polarized radiation sources with unusual spectral characteristics

... Pre-university education . ... Samara region . SSAU History . SSAU roadmap . ... Samara State Aerospace University (SSAU) will take an active part in the work of space activities of the United Nations organization (UNO). ... The road map shape on inclusion of Samara University into implementation of the UN Program on Space Applications was outlined at the roundtable discussion with the University teachers and specialists and at the meeting with SSAU Rector Yevgeniy Shakhmatov. ...

Еще в разделе: (Показать все результаты (>1856) - www.ssau.ru/ )

• SSAU will develop international cooperation in the field of additive
• Breakthrough in the field of information
• Stepanova Larisa Valentinovna

... The are two main sources of magnetospheric electric fields. The other is the solar wind related, dawn-to-dusk directed ("convection") field, and the other is the co-rotation electric field related to the rotation of the Earth along its spin axis. The electric fields have a strong effect on the drift paths of the magnetospheric plasma . ... The energetic particles, following the magnetic drifts more readily, are also affected by the convection field. ... Space Physics Text Book of Oulu ...

Еще в разделе: (Показать все результаты (>1220) - www.iki.rssi.ru/ )

• Isotropic boundary (Oulu)
• FAQ: "The Great Magnet, the Earth"
• Magnetic Fields

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. June 16, 1998 . An Active Region of the Sun . Credit: A. Title ( Stanford Lockheed Institute ), TRACE , NASA . ... This false-color image depicts an active region near an edge of the Sun . Hot plasma is seen exploding off the Sun's photosphere and traveling along loops defined by the Sun's magnetic field . ... About APOD > . ...

Еще в разделе: (Показать все результаты (>9666) - www.arcetri.astro.it/ )

• APOD: May 15, 1998 - TRACE and the Active Sun
• The Arcetri Spectral Code - E.Landi and M.Landini (2001)
• Arcetri Spectral Code related publications

Semiconductor Home > Products > Mixed Signal and Analog > CCD IMAGERS Family > . TC217, 1158- X 488-PIXEL CCD IMAGE SENSOR . Device Status: Active . ... The TC217 is a frame-transfer charge-coupled-device (CCD) image sensor with two field memories. ... Each line is configured into 1158 pixels with 1134 active and 24 for dark reference. ... CCD IMAGE SENSORS AND ANALOG-TO-DIGITAL CONVERSION (63 KB) (Abstract) . INTERLACE OPERATION IN TI VIRTUAL-PHASE CCD IMAGE SENSORS (29 KB) (Abstract) . ...

Еще в разделе: (Показать все результаты (>1959) - www.sao.ru/ )

• Product Folder: TC213, 1024- X 512-PIXEL CCD IMAGE SENSOR
• Product Folder: TC237, 680- X 500-PIXEL CCD IMAGE SENSOR DATA SHEET
• Product Folder: TC245, 786- X 488-PIXEL CCD IMAGE SENSOR

... A database on solar active regions has been implemented in IDL (Interactive Data Language). ... Full-disk 17 GHz radio maps produced by the Nobeyama Radioheliograph provide the basis for the database. Researchers of solar activity often need to access solar active region data. ... So far, we have created an IDL-based database on daily active region data from 1992 July 1 to 1994 December 31 (NOAA 7213 thru NOAA 7821) 2 . ... number of active regions visible on the disk; . ... IDL 1 . ...

Еще в разделе: (Показать все результаты (>1803) - www.adass.org/ )

• A Program Complex Equipped With a GUI for Investigation of 3D Structure of
• Software Applications

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Astrophysics graduate student programs . ... Australian Square Kilometre Array Pathfinder . Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Visiting Parkes radio telescope . Visiting Australia Telescope Compact Array . ... Parkes radio telescope webcam . ... active optics . ...

Еще в разделе: (Показать все результаты (>25499) - www.atnf.csiro.au/ )

• ATNF Colloquium
• Proceedings of the Workshop on Magnetic Fields and Accretion
• AT Hubble Deep Field South : Publications

... InformChaos Lab took part in CeBIT-2015 (Hannover, Germany) with "Active Ultra Wideband Wireless Networks". ... Lev Kuzmin received Dr.Sci. degree for his thesis "Wireless information transmission over UWB chaotic carrier" from IRE RAS. ... Artem Nikishov received Ph.D. degree from the Moscow Institute of Physics and Technology for the thesis "Generation of microwave chaotic oscillations in self-oscillating systems with several active elements". ... Our Products page is renewed. ... News | ...

Еще в разделе: (Показать все результаты (>684) - www.cplire.ru/ )

• Project 1 - SfP - Ovsyannikov, Supersensitive high-Tc superconducting
• Anton V. Shadrin

... These Frontier Fields will combine the power of HST with the natural gravitational telescopes of high-magnification clusters of galaxies. ... We are soliciting gravitational lensing maps for the last four Hubble Frontier Fields clusters (MACSJ0717.5+3745, MACSJ1149.5+2223, AbellS1063, and Abell 370) based upon the exceptionally deep HST FF imaging and other new ancillary data. ... For the full set of proposal instructions and requirements, see the FY16 Frontier Fields Lensing Map Call for Proposals....

Еще в разделе: (Показать все результаты (>15950) - www.stsci.edu/ )

• A detailed study of the radio-FIR correlation in NGC 6946 with
• HDF-S Flanking Fields Data Reduction / Technical Issues
• How to Apply

... Home address: . ... Panchuk V.E., Yermakov S.V. On the problem of measurement of radial velocity. ... Klochkova V.G., Ermakov S.V., Panchuk V.E. Express method of search for strong magnetic fields. ... Klochkova V.G., Ermakov S.V., Panchuk V.E. High resolution spectroscopy of selected faint stars. ... Klochkova V.G., Ermakov S.V., Panchuk V.E. Atlas spectra of F-, G-stars. ... Ermakov S.V., Klochkova V.G., Panchuk V.E., Zhao G. The chemical composition of halo stars, Astron. ...

Еще в разделе: (Показать все результаты (>1039) - jet.sao.ru/ )

• Gazinur Galazutdinov home page
• Публикации
• Publication Search

... X CB (X) Opening of a set X by a disk B. Closing of a set X by a disk B. Science-Driven Feature Selection (a) (b) Mount Wilson Classification The Mount Wilson classification scheme groups sunspots into four classes based on the complexity of magnetic flux distribution in associated active regions [1]: class : groups dominated by a single unipolar sunspot class : a pair of sunspots of opposite magnetic ... Convex hulls are utilized to measure polarity mixture in (j). ...

Еще в разделе: (Показать все результаты (>2820) - hea-www.harvard.edu/ )

• ChaMPlane data_archive_.html
• Exposure Map
• *qplintran* -- Apply linear transformation to a qp file through filter

... Radio astronomers at Arecibo Observatory observe a wide variety of phenomena in the Milky Way and in other galaxies. ... Some REU projects are carried out on pre-existing data, and others rely on obtaining new data. ... Deriving a new shape model from existing radar images has been a popular student project in past years, and there are data sets that could be used for this. We are collecting thermal infrared emission data for many of the near-Earth asteroids that are also observed with radar. ...

Еще в разделе: (Показать все результаты (>3639) - www.naic.edu/ )

• Solar Flares Reach Earth National Astronomy and Ionosphere Center (Arecibo

... 9) Oknyanskij V.L. 1994, "Optical-radio time delays in Q0957+561", Odessa Astronomical Publ., ... 11) Oknyanskij V.L. 1994, "Connection between X-ray and optical variability in NGC4151", in Proceedings of Int. Conf. ... 1994. 12) Oknyanskij V.L. 1994, "Connection between X-ray and optical variability in NGC4151", Astrophys. and Space Science, 222, p.157. ... 14) Oknyanskij V.L., van Groningen E., 1997, "Optical spectral variability of NGC4151 in 1990", Astronomical and Astrophys. ...

Еще в разделе: (Показать все результаты (>25) - uranus.sai.msu.ru/ )

... Arithmetic Geometry: Explicit Methods and Applications, Program . ... Marc Hindry (Paris) . ... Coffee break . ... Groups of points arising from elliptic curves . ... On CM genus 3 curves . ... Richard Griffon (Paris) . Analogues of the Brauer-Siegel theorem for elliptic curves over function fields . ... Julie Desjardins (Paris) . ... Algorithms for Curves and Jacobians . ... Conference dinner . ... The distribution of the trace in the compact group of type G 2 and applications . ...

Еще в разделе: (Показать все результаты (>1135) - www.mccme.ru/ )

• Labo J.-V.Poncelet: Alexander Krasnosel'sky
• ANR OTARIE project: transport optimization and applications
• Alexey Zykin

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... The magnetic field line structure is shown in the same way as in Fig. ... Observations of many active regions show a slow systematic outflow/upflow from their edges lasting from hours to days. ... The magnetic field contains several null points located well above the photosphere, with their fan planes dividing the mag- netic field into independent open and closed flux domains. ...

Еще в разделе: (Показать все результаты (>4872) - star.arm.ac.uk/ )

• Solar Active Region 10999 by Deirdre Kelleghan | International Year of
• Abstract 205
• Terry Mosely's Bulletins