... Sun images . Magnetic storms online . Sun flares . ... September : 2009 . ... X-ray emission of the Sun from 31.08.2009 to 01.09.2009 (GOES-10) . No solar flares of C, M and X-class were observed today . No solar flares of C, M and X-class were observed yesterday . Last updated: September 2, 2009 00:00 UT . ... 1953-2016 Laboratory of X-ray astronomy of the Sun, LPI RAS, Russia . ... 7(499)132-65-96, Fax: +7(499)132-65-97 . ...

... V.N. Obridko . ... Solar cycle . Coronal holes . ... webmaster@izmiran.ru . ... On the polarization of the solar coronal emission lines . Solar Physics 33 (1973) 169-175. O.G.Badalyan, V.N.Obridko, J.Sykora . ... O.G. Badalyan, V.N. Obridko, J. Ryb k and J. S kora . ... J. S kora, O.G. Badalyan, V.N. Obridko . ... O.G. Badalyan, V.N. Obridko . ... December 2005, ESA Publication Division, ESTEC, P.O. Dox 299, 2200 AG Noordwijk, The Netherlands, Ed. D.Danesy, S.Poeds, A. De Groof, J. Andres. ...

... The evolution of magnetic fields in OB-type stars from the study of open clusters of different ages . ... Wade G. A. The MiMeS Project: Magnetism in Massive Stars . ... Polosukhina N., Shavrina T., Drake N., Kudryavtsev D. Smirnova M. New results of the spectral observations of CPstars in the Li I 6708? spectral region with BTA telescope of SAO RAS . ... Magnetic Stars-2010 . ... List of participants . List of reports . ... Laboratory for the Stellar Magnetism Study of SAO of the RAS . ...

... Magnetic Fields in the Sun and stars: Measurements . Chair: Eric Priest . ... 10:00 The dynamic nature of the solar magnetic field . ... 10:40 Coffee break/Posters . ... 11:50 Magnetic Activity and Variability in Stellar Coronae (EUV) . ... 12:30 Magnetic Activity and Variability in Stellar Coronae (X-rays) . ... Magnetic Fields in the Sun and stars: Evolution . ... 14:30 Evolution of chromospheric activity in low mass stars, . ... 16:30 Activity in the Sun and late-type stars . ...

... Jane Charlton, The Pennsylvania State University . Modes of Star Formation and Nuclear Activity in an Early Universe Laboratory . Abstract . ... The Nature of the Halos and Thick Disks of Spiral Galaxies . ... In the coming week, observations are scheduled of OB associations in the M33. ... The present program is combining high-resolution, multi-colour HST imaging with ground-based low-resolution VLT/Keck spectroscopic observations of over 50 strong lensing systems. ... Past weeks: . ...

... Credit Copyright: Philippe Moussette Explanation: So far, the Aurora Borealis or Northern Lights have made some remarkable visits to September's skies . ... This colorful example of spectacular curtains of aurora was captured with a fish-eye lens in skies over Quebec, Canada on September 11. ... Seen near Mars (just below and to the right) is the tightly knit Pleiades star cluster. ... Publications with keywords: aurora - Mars - pleiades . Publications with words: aurora - Mars - pleiades . ...

. 2013 тАУ 2014 . Home . Activities . 20 Aug. a talk by Mark Braverman (Princeton). Conferences . ACA 2013 . CCR 2013 . Visitors . More information . Contact . Where to eat? . Name . Institution . Visit Dates . Alexander Shen . LIRMM Montpellier . 4 September тАУ 4 December . Rupert H†ґlzl . LIRMM Montpellier . 30 September тАУ 4 October . Poncelet Laboratory home page . Sponsors: ANR , Campus France , CNRS , french ambassy , HSE Lab. of Alg. Geom. , IUM

... 2000 September 16 . X-Ray Earth . Credit: Polar , PIXIE , NASA . ... Why does the Earth have an x-ray glow? Actually, the Earth itself does not, but the aurora high in the Earth's atmosphere do glow with x-rays detectable by space-based instruments. ... This activity causes shimmering visible aurora along with x-ray, ultraviolet, and radio emission . The x-rays are not dangerous to life on Earth because they are absorbed by the dense, lower atmosphere. ... About APOD | ...

spaceweb@oulu.fi - last update: 13 September 1998, 1130 UT (RR) . Ground based magnetometer measurements are used to derive several indices that describe magnetic activity in the Earth 's environment. aa , AE , Ak(Hel) , Kp , Dst , PC , MT . ... AE index is an auroral electrojet index obtained from a number (usually greater than 10) of stations distributed in local time in the latitude region that is typical of the northern hemisphere auroral zone (Davis and Sugiura, 1966). ...

... The magnetic mapping, polar diagram, and ASCII files for each decade of month: . ... ASCII files description | DEC 1 (ASCII file, size more then 350Kb!) ... The IB_AUR magnetic conjugations with the others Spacecraft . ... ASCII file description | Plot description | ... ASCII file . real time plot . ... The IB_AUR magnetic conjugations with the groundbased magnetic observatories . ... IB_AUR Home page . ... INTERBALL mission  ...

... SCIENTIFIC INTERESTS Mesocale meteorology, mesoscale numerical modeling, cloud microphysics, data assimilation, forecast of optical turbulence in astronomy. ... FOROT project (leader of the project: Elena Masciadri), dealing with the forecast of optical turbulence above astronomical sites using the non-hydrostatic atmospherical model at mesoscale Meso-NH. ... GRANTS April 2006 Winner of a post-doctoral position as experienced researcher in a Marie Curie Excellence Grant project (FOROT). ...

Statistics of sunspot activity . The sunspot indices . ... The solar regions . ... 2015 . ... September . ... September, 2015 . Visual indices of solar activity by author's observations . ... Average . ... 0.40 . ...

NEWS FEDERATION rus ENCYCLOPEDIA rus HISTORY rus MIR STATION RUSSIAN . ... Cosmonauts. ... Launches . ... Launch Vehicles. ... Space Science . ... Russian-Indian Activities On GSLV . While India successfully test fired its own Lox/LH2 engine Russian engineers continue to adapt 12CS (12KRB) stage for the Indian GSLV launch vehicle. Tsyklon-4, The Advanced Space Launch Vehicle . ...

The IV-th International Astronomy Olympiad took place on September 25 - October 2, 1999 in the scientific town of Nauchnyj, Republic of Crimea, on a base of Sternberg Astronomical Institute Crimean Laboratory , Crimean Astrophysical Observatory and Crimean "Youth Academy os Sciences" Astronomical Department . ... India . ... The 5th International Astronomy Olympiad took place on October 20-27, 2000 at the Special Astrophysical Observatory of Russian Academy of Sciences (SAO RAS) in the North Caucasus. ...

... The IX Russian-Finnish Symposium will take place in Special Astrophysical observatory RAS on October 15-20, 2006. The symposium is sponsored by SAO RAS, Central Astronomical Observatory (Pulkovo, SPb) and by Russian Foundation of Basic Research . ... M. Mingaliev, chair (SAO), Yu. ... M.Tornikoski (Metsahovi observatory), E.Valtaoja (Tuorla observatory) . Sergei Truskhin (chair), Vladimir Bogod, Ekaterina Filippova, Larisa Martinova, Julia Sotnikova, Larisa Opeikina, Abdulah Uzdenov . ...

Orange Pulsar Meeting . ... All talks were scheduled for 15 minutes, followed by 5 minutes discussion time . ... Discovering Radio Pulsars in Fermi Gamma-ray Sources . ... Discussion . ... Detecting the Gravitational Wave Background with Pulsar Timing . ... Gravitational wave science with pulsar timing . ... Observation of radio loud pulsars with the Fermi-LAT telescope . ... Linear acceleration emission in radio pulsars . ... Timing solutions for 177 Parkes pulsars . ... The ANDS-ATNF Data Archive . ...

... Maintenance and Work Completed on M1: September 10, 1999 . Whiffles Installed on M2: September 10, 1999 . M1 Support System Maintenance: September 10, 1999 . M1 Temperature Sensor Work and Repair: September 10, 1999 . M1 Hex-cell Deterioration: September 14, 1999 . ... M1 Whiffle Mount and M1 Back, September 21, 1999 . ... Views of Secondary Mirror (Back): April 13, 2000 . ... Front Portals: June 8, 2001 . ... M2 and M3 Baffle Work: June 8, 2005 . ... M3 Work: November 7, 2007 . ...

Multi-Wavelength investigations of the Sun and modern problems of solar activity . SAO RAS . ... Representation of the last findings in the field of experimental and theoretical investigations of solar activity. The analysis of the maximum of the 23d cycle of solar activity and connection with Space Weather. ... Solar corona study. ... Solar activity and disturbances of the solar wind and cosmic rays. Modern observational methods for solar investigations. ... Copyright © 2006 SAO RAS . ...

... Telescopes . ... The International Conference "Dark Ages and White Nights (Spectroscopy of the CMB)" (June 20-24, 2016) . ... The International Conference "Stars: from collapse to collapse" (October 3-7, 2016) . The traditional annual competition conference of scientific and scientific-engineering papers of the Observatory staff members . ... A session of the Dissertation Council (October 16, 2015) . ... International scientific conference "Large Optical Telescopes" (October, 10-13, 2011) . ...

... 13th European VLBI Network Symposium . and Users Meeting . on September 20-23, 2016. ... 13th European VLBI Network Symposium and Users Meeting on September 20-23, 2016. ... Year book "Ephemerides of Minor Planets for 2016" on-line . ...