... Large Sunspot Group AR 9393 . ... Credit Copyright: MDI , SOHO , ESA , NASA Explanation: The largest sunspot group of the past ten years crossed the surface of the Sun late last month and early this month. The group was designated Active Region 9393 as it was the 9393rd region identified since counting officially began in 1973. ... Just after the end of the movie, on April 2, AR 9393 unleashed the largest solar flare of the last 25 years . ... Violent Sunspot Group AR 1302 Unleashes a Flare . ...

Table 5.1: Special External Target Names . ... The Visit and Exposure Specifications are used to define the proposed exposures for all the Scientific Instruments. ... The rest of the exposure keywords are used to define parameters that usually change from one exposure to the next, such as filters, exposure times, and special scheduling requirements. ... An exposure consists of the events and data corresponding to a unique Exposure_Number within a given visit. ... Science exposure(s) . ...

... Today this year's largest group of sunspots will cross the Sun's central meridian. ... The next day, the number of spots in the group reached five, and the day after, on June 2nd, it was possible to count thirteen sunspots on solar disk, which had been clear prior to this. ... This year's two most powerful active areas, which passed across the solar disk at the beginning of May, 2009, are set to appear in the Sun's eastern sector in two days, on June 6th. ...

... The largest number of channel groups in a row . The largest number of channel elements in a row above threshold . Create empty output table header and structure. Create a linked list (GROUP_LIST) to store groups of contiguous elements . ... Foreach element in row . ... Else push GROUP onto GROUP_LIST, and create a new instance of the GROUP structure for the next group of contiguous elements. End element loop . ... Create a new instance of GROUP_LIST for the next row. end row loop . ...

... 20-24 Heliographic longitude 26-30 Latitude 32-36 Second heliographic longitude (999.9=no data) 38-42 Second latitude (999.9=no data) 44-47 Average group area, in millionths of solar hemisphere (9999=no data) 49-52 Average area of the largest spot (9999=no data) 54-56 Average number of spots in the group (999=no data) 58-59 Length of observation time of the group in days ...

... Behemoth black hole found in an unlikely place . ... black holes . ... Observing springtime deep-sky objects with a large telescope . ... Could large numbers of black holes account for much of the "dark matter" estimated to exist in our universe? ... NASA, ESA, M.J. Jee and H. Ford (Johns Hopkins University) No, because the universe never had the raw material to grow enough black holes to account for current estimates of dark matter. Get instant access to subscriber content on Astronomy.com! ...

RELATIVE SUNSPOT NUMBERS Description of Data from SGD Explanation of Data Reports: Relative Sunspot Numbers -- The relative sunspot number is an index of the activity of the entire visible disk of the Sun. ... The provisional daily Zurich relative sunspot numbers, Rz, were based upon observations made at Zurich and its two branch stations in Arosa and Locarno and communicated by M. Waldmeier of the Swiss Federal Observatory. ... This indicates the uncertainty above and below the predicted number. ...

Next: FIT/ROMAFOT Up: The Automatic Path Previous: SEARCH/ROMAFOT . ... This command groups the objects automatically. ... To group remaining objects, one can execute the command once more with the same catalogue and intermediate table, but with an increased maximum number of objects per window and a reduced AR (in the sense just explained). ... The user is trying to group noise peaks. ... After having grouped the objects, the user tries to fit the subframes by executing the command FIT/ROMAFOT . ...

Sternberg Astronomical Institute, Moscow University, . Moscow, Russia . Supernovae make us brighter .. Search russian astronomical resources . Mirror of International Supernovae Network ( Original site ) . Catalogue of Supernovae Stars . HTTP access to SAI Catalogue of Supernovae Stars . SAI SN Light Curves Online . ... Sternberg Astronomical Institute ( in Russian ) . ... Astronet - Russian Astronomical Network . ... Russian Foundation for Basic Research . ...

... PmWiki . Summary: PmWiki group header. ... Summary: Styling text for colour and other attributes:) See also Wiki Styles Plus and Wiki style colors . ... PmWiki 2.0 introduced the ability to control the styling further and to even place styles on blocks. ... This text is %color=red% red, %color=blue% blue, %% and normal (black). ... For example, to define a style of %red% , one can use: . define=mystyle color=red% Here is some %mystyle% red text created using a style shortcut. ... Group . ...

... Astronomers have been surprised by the emergence on the Sun of one of the largest sunspot groups of modern times. ... A sunspot's area is measured in millionths of the area of the Sun's disc. ... The current sunspot group is one of the largest seen since 1947, rivalling a group seen in 2001. ... The vertical magnetic field lines, deep below the sunspot, inhibit the transfer of heat from the general body of the Sun to the central region of a spot, resulting in the lower temperature of the umbra. ...

Solar High Resolution Studies . Back to . Solar Group . ... The study of photospheric "quiet" structures can have deep implications for a large variety of astrophysical topics, ranging from energy transport in astrophysical plasmas, to MHD problems in fluids with elevated Reynolds number. The wealth of structures and scales visible in the quiet solar photosphere is well exemplified in this white light movie, obtained at the Dunn Solar Telescope at the NSO/Sacramento Peak on Oct. ...

... Astrophysics Group . ... Surveys and Catalogues . 10C . ... AMI-Planck . ... FIRST . ... The 15.7-GHz, 10C Survey was carried out using the Arcminute Microkelvin Imager (AMI) Large Array (LA), which is operated by the Cavendish Astrophysics Group at Lord?s Bridge, Cambridgeshire. ... The first 10C Survey results from an area of тЙИ 27 sq. degrees complete to 1 mJy and тЙИ 12 sq. degrees complete to 0.5 mJy have now been released. ... The 10C catalogue is available in ASCII and PDF formats. ...

... ESO is building what will be the World's largest optical telescope array, The Very Large Telescope (VLT). The VLT Project organisation is responsible for the design and construction of the Unit Telescopes, including enclosures, optics, adapter-rotators and coating unit. ... Unit Telescopes Overview - This page is outdated, an update is in process. ... Secondary mirror (M2 Unit) - This page is outdated, an update is in process. ... Coating Unit - This page is outdated, an update is in process. ...

... The absolute Galois group of Q, denoted Gal(\bar{Q}/Q) in the sequel, is a fundamental object in arithmetics since it carries a lot of informations about number fields. ... A classical way to study this group is to use p-adic numbers. ... firstly, we will explain the classical d vissage of Gal(\bar{Q_p}/Q_p) based on ramification theory; as a corollary, we will deduce that any finite extension of Q_p is resoluble; . ...

... Users . ... Data Collection and Analysis . ... This particular part of the analysis has been disabled since the code is struggling to cope with the number of users seen this year, in particular the large contingent of people who have re-tweeted NASA. ... Order accounts: by user number (effectively random) by number of tweets (includes retweets) by number of followers by number of followers that also tweeted about AAS225 by number of friends that also tweeted about AAS225 . ... by user number . ...

Weekly Bulletin on Solar and Geomagnetic Activity Highlights on 03 - 10.02.2014, Forecast on 11 - 18.02.2014, Carrington Rotations 2146, 2147 (15.39.01; 11,73.02.2014) SUNSPOT-FORMING ACTIVITY REMAINED AT THE HIGH LEVEL ALL PERIOD. ... It went for W-limb at the end of the day 9.02 without having changed. NEXT WEEK IS EXPECTED THE HIGH AND THE MODERATE LEVELS OF SUNSPOT- FORMING ACTIVITY. ... FLARE ACTIVITY WAS AT HIGH LEVEL 4.02, AT THE MODERATE LEVEL - 4- 7, 9.02 AND THE LOW LEVEL IN OTHER DAYS. ...

... 100 spectra over plotted (.ps) ( .pdf ) . 1170 MHz Dynamic spectra (.gif) . 1420 MHz Dynamic spectra (.gif) . 1520 MHz dyanmic spectra (.gif) . 1620 MHz dynamic spectra (.gif) . ... dynamic spectra . ... running the diagnostics . ... These errors could not have been caused by rfi: . ... 86 MHz bandwidth, 172.032 MHz clock. ... Page 2: 1420 MHz . ... Group 1 ran ok . ... none . ... ran for 6mb with no errors.. ran diagnostics with: . 172.032 MHz bw, 86.. ran with hardly any errors . ...

Statistics of sunspot activity . The sunspot indices . ... Visual indices of solar activity . ... n - number of spot groups . A - Waldmeier class of unipolar spot groups without penumbra . B - class of bipolar spot groups without penumbra . C - class of bipolar spot groups with one penumbra pole . D - class of small bipolar spot groups with two penumbra poles . E - class of middle bipolar spot groups with two penumbra poles . ... H - class of unipolar penumbrated spot groups . ...

... The first two working group reports (on Extrasolar Planets and the Herschel--ALMA Synergies) were released in 2005 and 2006, and this third report covers the area of Fundamental Cosmology. The Working Group's mandate was to concentrate on fundamental issues in cosmology, as exemplified by the following questions: . What are the essential questions in fundamental cosmology? ... What are the appropriate methods with which these key questions can be answered? ...