Statistics of sunspot activity . The sunspot indices . ... NGDC's observations . The solar regions . ... Average annual indices . ... December . ... December, 2009 . Visual indices of solar activity by National Geophysical Data Center . ... Average . ...

... The best annual meteor shower is the Geminids, which are expected to peak this year on December 13th at 18h. Some activity will persist until about Dec 15/16. Unfortunately this year's display will be spoiled by a Full Moon at maximum, but you should still see some of the brighter meteors. ... This is a live count of meteor showers based on visual data entered through the IMO electronic report form. ... Saturday, 13 December 2008 19:03 . International Year of Astronomy, Ireland National Node . ...

... Magnetic storms online . ... Geomagnetic activity forecast . ... December : 2015 . ... No magnetic storm is expected . From 2 December 2015 to 28 December 2015 the following magnetic storms and disturbances are expected: . December 06, 2015 geomagnetic disturbances . ... December 08, 2015 geomagnetic storm of level G1 (minor) . ... December 21, 2015 geomagnetic storm of level G2 (moderate) . ... December 16, 2015 geomagnetic storm of level G1 (minor) 2 December 2015 - 28 December 2015 . ...

... 2006 December 4 . Movie: The Active Sun . Credit: Solar Optical Telescope, Hinode Satellite , JAXA . ... Near the horizon, active regions around a sunspot eject hot plasma along the magnetic field lines that connect the sunspot to surrounding regions in the solar atmosphere . ... This frame from the movie is in representative color and covers a solar region of about 8,000 kilometers. ... About APOD | ... NASA Web Site Statements, Warnings, and Disclaimers . ...

... HST . ... Data . ... HST Overview . Overview . ... Retrieving HST Data . ... FUV HV History . ... COS Data Handbook . ... December 2010 +--------------------------------------------------------+ In this Newsletter we provide information on the changes to the COS pulse height filtering, the effects of gain sag on dispersed light target acquisitions for COS, COS airglow Observations, Reference file updates mailing lists for both COS and STIS, and the delivery of a new FUV bad pixel table for STIS. ...

THE RELATIVE MONTHLY MEAN SUNSPOT NUMBER ON DECEMBER 2013 HAS MADE Wdec.= 61.4, THAT GIVES FOR 42 MONTH (2012, JUNE) DEVELOPMENT CURRENT 24 CYCLES OF SOLAR ACTIVITY THE SMOOTHED MONTHLY MEAN SUNSPOT NUMBER W*june= 61.7 THE BEGINNING 24 CYCLES OF SOLAR ACTIVITY - I 2009 with W*=1.8 THE MOST PROBABLE TIME OF THE MAXIMUM OF THE CURRENT CYCLE- XI.2012 - III 2013 THE MOST PROBABLE HEIGHT OF THE MAXIMUM - Wmax = 66 - 75. ... NEXT WEEK THE LEVEL OF SUNSPOT ACTIVITY IS EXPECTED TO BE THE HIGH AND AVERAGE. ...

Astronomy Picture of the Day . ... 23.12.2009 . ... Credit: Anthony Ayiomamitis ( TWAN ) Explanation: The Sun is a moving target . Its annual motion through planet Earth's sky tracks north and south, from solstice to solstice, as the seasons change . On December 21st, the solstice marking the first day of winter in the northern hemisphere and summer in the south, the Sun rose at its southernmost point along the eastern horizon. ... Publications with keywords: solstice - sunrise . ...

... ATNF Home . About ATNF . ... About ATNF overview . ... Governance overview . Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Our people overview . ... Publications overview . ... Careers overview . ... ATNF facilities . ... MRO Support Facility . Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Current telescope status . ... Scientific support of facilities . ... ATNF Operations Overview . ... Meetings . ...

... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Company's History . ... History . Brief History of Rocket and Space Technology . ... ISS Russian Segment . ... Experiments and Researches from 2013 . ... Support of the Station functionality; . ... Onboard photographic and video recording of the ISS RS flight history and implementation of symbolic activities program. ... Support of the Space Station functionality; . ... 2015 JSC "S.P. Korolev RSC "Energia" . ...

Russian . ... text in Russian) . ... The Behaviour of the Bz Component of the Magnetic Field in Coronal Mass Ejections . ... Cooperation of IZMIRAN and Sternberg Astronomical Institute in the Study of the Sublimational Component of the Solar Coronal Radiation . ... Solar Wind and Magnetic Storms in the 24th Solar Activity Cycle . ... text in English) . ... The Solar Corona in the Light of TRACE Observations . ... Expeditions of Irkutsk Astronomers to Total Solar Eclipses in 1981--2012 . ...

SDSS CONSTRUCTION ACTIVITIES . ... Construction Punch List: December 27, 1999 . Detail Views of Roof Attachments: December 22, 1999 . ... HVAC and Hoist Work: December 13, 1999 . Moving the Loft: December 6, 1999 . ... Quick Shots of Loft Installation: December 6, 1999 . ... Loft Preparation for Installation: December 1, 1999 . Moving Loft for Prep Work: November 29, 1999 . ... Construction Tarp Installation; Part 2: November 5, 1999 . ... HVAC Installation; Part 3: October 7, 1999 . ...

... Observatory . ... Science . ... Science Users Information > Science Publications > Science Announcements > Restricted Services from 21 December to 01 January . ... Science Users Information . Observing Facilities . ... Instrumentation Development . Future Facilities and Development . ... Observing with ESO Telescopes . ... Data Handling and Products . ... Science Data Products Forum . ... Science Archive Facility . ... ESO Data . ... ESO Data Access Policy . ... ESO Science Newsletter . ...

BaBar Tau Physics Workshop , December 6-7, 2003 . LIGO Scientific Collaboration Meeting , November 10-13, 2003 . IEEE Conference , October 19-25, 2003 . Vertex 2003 , September 14-19, 2003 . ... The 4th ECFA/DESY Workshop on Physics and Detectors , April 1-4, 2003 . ... Talks 2002 . ... Talks 2001 . ... Talks 2000 . ... Status of Software by U. Oregon: SuspensionMon and GRB Notification , Rauha Rahkola . ... First look at Bhabha Energy Calibration with Beamstrahlung , David Strom . ...

... 2015 - 2016 . ... Eugene Higgins Professor of Astrophysics, Princeton University . ... December 8, 2015 . ... November 10, 2015 . ... University of the Sciences in Philadelphia author . ... Amateur Astronomer . ... 2014 - 2015 . ... June 9, 2015 . ... Digital Planetarium and the 2012 Transit of Venus from Hawaii . 2013 - 2014 . ... International Occultation Timing Association . ... 2012 - 2013 . ... 2011 - 2012 . ... Princeton University . ... Amateur Astronomers Association of Princeton, Inc., ...

... Home Education Workshops at Adorama Astro Imaging Workshop: Planetary Astro Imaging with a DSLR ? December 7, 2014 . ... Astro Answers . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... Presented by€а Adorama€а For the Amateur Astronomers Association of New York . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Space Flight . Human Exploration . ... December . ... Posted on December 3, 2015 | No Comments WhatтАЩs that we hear? ... Continue Reading.. Posted on December 5, 2014 | 4 Comments The December skies mark my favourite time of the year for stargazing. ... Posted on December 6, 2013 | ... Posted on December 14, 2010 | ... Here you will find the latest news and views from the fascinating worlds of astronomy and space exploration. ...

... The main periodicity in the Sun 's activity is the 11-year cycle called the solar cycle. ... During the cycle, changes occur in the Sun's internal magnetic field and in the surface disturbance level. ... At the beginning of a cycle the solar magnetic field resembles a dipole which axis is aligned with Sun's rotation axis. ... The sunspot number - and Sun's activity - is at maximum in the middle of a cycle, when the Sun's internal magnetic field is most chaotic. ... Space Physics Text Book of Oulu ...

An Ancient Universe: How Astronomers Know the Vast Scale of Cosmic Time . COSMIC CALENDAR . The Cosmic Calendar Activity. If we were to compress the history of the universe (from the Big Bang to the present moment) into one year, you can see where various "cosmic events" would fall in that year. ... The first mammals don't emerge until December 26th, and the first humans come on the scene in the evening of December 31st. ... Return to An Ancient Universe . ...

Friday, December 7th, 2012 . ... No Comments ? Monday, December 3rd, 2012 . Добавлена страничка со списком публикаций сотрудников лаборатории за 2012 год. ... You are currently browsing the Лаборатория лазерной интерферометрии blog archives for December, 2012. ... Публикации за 2010 . Публикации за 2011 . Публикации за 2012 . ... January 2013 . December 2012 . ... January 2012 . ... January 2011 . ... Лаборатория лазерной интерферометрии is proudly powered by WordPress . ...

... Within the transnational Access program of SOLARNET, European investigators can apply for observing time with the European instruments IBIS and ROSA , which are installed at the Dunn Solar Telescope of the US National Solar Observatory ( DST/NSO ). ... Periodic calls for proposals will be published for requesting SOLARNET observing time with the European instruments IBIS and ROSA, installed at the Dunn Solar Telescope of the US National Solar Observatory (DST/NSO). ... SOLARNET Access . ...