... 2000 June 8 . Active Regions, CMEs, and X-Class Flares . ... Explanation: Space Weather forcasters are predicting major storm conditions over the next few days as the active Sun has produced at least three strong flares and a large coronal mass ejection (CME) since Tuesday, June 6th . ... X-ray hot plasma suspended in looping magnetic fields arcs above this region, cataloged as AR9026. AR9026 appears as a large group of sunspots in visible light images. ... About APOD | ...

... 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 > . ...

... Sun images . ... Sun flares . ... Active areas . September : 2015 . ... 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 September 09, 2015 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 September 09, 2015 00:31 UT . ...

... Active Regions, CMEs, and X Class Flares . ... AR9026 appears as a large group of sunspots in visible light images. The three intense flares were all X-class events, the most severe class of solar flares based on X-ray flux measurements by the earth-orbiting GOES satellites. ... Publications with keywords: Sun - flare - active region - solar flare - space weather . Publications with words: Sun - flare - active region - solar flare - space weather . ... An X Class Flare Region on the Sun . ...

. Home . News . Gallery . Events . Twitter . Press Releases . Links . Contact Us . Calendar . Press & Web Coverage . Previous . Next . List . Deirdre Kelleghan kept observing the Sun and she sent us a new wonderful drawing: "Active Region 10999, June 20th 2008 13:45 UT; PST 40/8mmTVP eyepiece/50X upscaled by eye; soft pastels and graphite on black paper". Thank you, Deirdre! . Tuesday, 24 June 2008 01:52 . International Year of Astronomy, Ireland National Node . [Back To Top] .

... Solar flare activity is produced by the processes of accumulation and release of energy in an active region. ... In the framework of study of solar active regions, producing powerful flares the researchers from the RATAN-600 radio telescope have detected sources with features in the form of a sharp drop in the intensity of polarized radiation in various parts of the recorded frequency range (2-16GHz), sometimes changing the sign of polarization. ...

New 12CO J = 4-3 and 13CO J = 3-2 observations of the N 159 region, an active site of massive star formation in the Large Magellanic Cloud, have been made with the NANTEN2 and ASTE submillimeter telescopes, respectively. ... The 13CO J = 3-2 data were newly taken for the present work. ... The N 159 E clump is associated with cluster(s) embedded, as observed at 24нјm by the Spitzer MIPS, and the derived high temperature, 80 K, is interpreted as being heated by these sources. ...

Data Archive . Video-records archive . ... 1997 | ... Time (UT) Counter Remarks _______________________________________________________________________________ 05.01. 10:29:17 2:06:42 scan disk 11:58:23 2:11:19 active regions 06.01. 09:49:51 2:12:17 scan disk 10:56:24 2:19:10 active regions 12.01. 09:39:12 2:19:59 scan disk 10:03:41 2:27:51 active region 10:05:09 2:28:34 filament 10:07:17 2:29:10 ...

... Towards a Truly Unified Model of AGN . ... The Unified Model holds that the aspect-dependent effects primarily determine the nature of the active galactic nucleus that we observe. ... The full postscript file can be obtained here: . The PASA Latex file can be obtained here: . The postscript file of Fig 1 can be obtained here: . ...

Automatic Classification of Sunspot Groups Using SOHO/MDI Magnetogram and White Light Images David Stenning March 29, 2011 1 Introduction and Motivation Although solar data is being generated at an unprecedented rate, the majority of sunspot classification is done manually by experts. ... This is to smooth the "white" areas in the magnetograms. ... Left: Inverse Magnetogram Right: "Opened" Inverse Magnetogram 6 Using the cleaned images, sunspot active-region "seeds" are obtain by thresholding. ...

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. ...

RATAN­600 MICROWAVE SPECTRAL OBSERVATIONS OF THE SUN -- TODAY AND FUTURE V.M. Bogod Special Astrophysical Observatory of RAS, Saint­Petersburg, Russia vbog@gao.sb.ru Problems of solar radio emission study with the help of the RATAN­600 radio telescope are considered. ... Neutral line associated sources in solar active regions; . ... Multiple polarization inversions in flare­productive active regions; . ... The ``darkening'' radio emission e#ect in flare­productive active regions; . ...

... Tonight's Sky . ... Sky this Month . ... Astronomy for Kids . ... Hubble sees NGC 7090 т?? an active star-forming galaxy . ... This image portrays a beautiful view of the galaxy NGC 7090, as seen by the NASA/ESA Hubble Space Telescope. ... This image portrays a beautiful view of galaxy NGC 7090, as seen by the NASA/ESA Hubble Space Telescope. ... These structures trace the location of ongoing star formation, visual confirmation of recent studies that classify NGC 7090 as an active star-forming...

... 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. ...

An X-ray/radio sample of Active Galactic Nuclei Nuria Fonseca Bonilla Tutor: Stefano Bianchi Matteo Guainazzi An X-ray/radio sample of Active Galactic Nuclei Brief introduction Results Conclusions An X-ray/radio sample of Active Galactic Nuclei 1. ... Classification of AGN radio loud (powerful jets): e.g: radio galaxies, quasars, blazars... radio quiet radio quiet quasars (RQQs) Veron `06: MABS < -23 Seyfert Veron `06: MABS > -23 An X-ray/radio sample of Active Galactic Nuclei 3. ...

... English (Ireland) . ... ESO, the European Southern Observatory . ... Travel and Contacts . ... Survey Telescopes . ... New insight into the central region of the active galaxy NGC 1068, at increasing magnification. Image a (left) is a colour composite of NGC 1068, obtained with the Hubble Space Telescope (HST); showing stellar light in blue, oxygen ionized by the active nucleus in yellow, and inonized hydrogen in red. ... Image c (right) is a sketch of the dust structure of the innermost region. ...

... 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 . ...

... Remote Sensing of Tropical Regions . ... INTRODUCTION: SCIENTIFIC RATIONALE FOR TROPICAL STUDIES .. ... 1.1 Tropical Ocean and Global Atmosphere programme .. ... 1.3 Tropical convective systems and their observations.. ... AIRSPACE REMOTE SENSING OF TROPICAL CYCLONES.. ... THE TROPICAL ATMOSPHERE-OCEAN SYSTEM AND REMOTE SENSING .. ... 3.2.2 Precipitation estimated from passive microwave satellite observations 53 . ... 3.2.5 Requirements of satellite missions.. ... TROPICAL SEAS AND REMOTE SENSING.. ...

Galaxies are diffuse objects which are imaged against a background of finite brightness and noise. Galaxies which have the maximum contrast with respect to this background are the ones that are first discovered. ... These galaxies have been missed to date but active surveys for them are underway. ... In this page we present several examples of these newly discovered Low Surface Brightness galaxies as well as examples of high surface brightness galaxies. ...

... Main research and development work completed in 2011 and ready for implementation . ... It is found that the 1.8 MeV line is concentrated in the Galactic disk, whereas positron annihilation takes place in the central region of the Galaxy. ... Main research and development work completed in 2010 and ready for implementation . Main research and development work completed in 2009 and ready for implementation . Main research and development work completed in 2008 and ready for implementation ...