Statistics of sunspot activity . The sunspot indices . ... NGDC's observations . The solar regions . ... Average annual indices . ... December . ... December, 2006 . Visual indices of solar activity by National Geophysical Data Center . ... Average . ...

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... 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 . ...

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• Armagh Observatory
• The Twins' Meteors, Geminid Meteors
• Latest News

... 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. ...

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• STAN - December 1998
• HDF-S Followup Notes - Sydney, December 1997
• December 2013 STAN

ATNF Home . About ATNF . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . ... Mopra radio telescope . ... VLBI . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... 20 messages : Starting 2010-12-01 12:58:08, Ending 2010-12-24 18:13:02 . sort by : [ thread ] [ author ] [ date ] [ subject ] [ attachment ] . ... Friday, 24 December 2010 . ... Tuesday, 21 December 2010 . ...

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• Archive of VLBI Observations Majordomo List
• Travel and Observations
• VSOP Observing Schedule

... 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 . ...

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• Space weather forecast December 03, 2015
• Space weather forecast December 02, 2015
• Space weather forecast December 04, 2015

... 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 . ...

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• Arcetri Star-Formation Group Publications
• APOD: 2000 December 20 - Sgr A: Fast Stars Near the Galactic Center

... 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 . ...

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• APOD: 2008 December 11 - At the Center of the Milky Way
• APOD: December 30, 1999 - The Century that Defined Galaxy
• APOD: 2001 December 8 - Moon Struck

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 . ...

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Next: IPCS observations and data Up: Spectral survey of Case Previous: The sample description . The observations were carried out with the 6m telescope of the Special Astrophysical Observatory of Russian Academy of Sciences (SAO RAS) in the period from December 1992 to October 1996. ... 1986 ]). Since January 1996 we used for registration Tektronix CCD 1024 1024 provided by Astrophysical Institute Potsdam (AIP, Germany) in the frame of mutual cooperation between AIP and SAO RAS. ...

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• Calar Alto 2.2m telescope observations
• Observations
• Spectral observations and data reduction

... December 21, 1997 . ... Advantages are briefly discussed of gaining in spectral resolution, which is accompanied by losses in signal level, as compared with the attempts to improve the accuracy of measurement of line parameters by means of rising the S/N ratio alone with increasing the exposure time. To partially solve the problem of observations of faint objects at the BTA a new design echelle spectrometer is proposed. high resolution spectroscopy . ...

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• Публикации

... This is not important for drift observations but poses a problem for any observing mode in which the telescope is moving while taking data, since the ALFA beams then will be rotating on the sky. ... The new mode is called ' sky angle tracking ' and is available for all existing observing modes. ... The next figure shows the distance between the beams in declination as a function of hour angle when the telescope is tracking a source with Dec=+10 from rise to set with a sky angle of 19 degrees. ...

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• Observation Abstracts National Astronomy and Ionosphere Center (Arecibo
• Arecibo Galaxy Environment Survey (AGES)
• Arecibo Observatory Back on the Air

Program Id: . ... UTC End Time: . Astronomer/PI Name(s): . ... Observer Name(s): . Nightlog Day: Sunday Monday Tuesday Wednesday Thursday Friday Saturday Month: January Febuary March April May June July August September October November December Day (DD): Year (YYYY): Full Night A (First half) B (Second half) Special Schedule . ... Note: Open this weather logfile program in another browser window. Please copy and past the resultant info below at the end of the night) . ...

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• construct
• Untitled Document
• ARC Progress Reports

... It was designed to observe the solar wind approaching Earth, from a position near the Lagrangian point L1, and it is part of the International Solar-Terrestrial Physics (ISTP) Initiative . ... The original plan called for "Wind" to approach its final station over two years, undergoing two close encounters with the Moon to boost its speed. ... If however the object is moving , the encounter is not symmetric, and in the end the spacecraft may have gained or lost speed, depending on its trajectory. ...

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• Space Research Institute (IKI) Seminar
• SKA-3 Results Page
• The Second Announcement

... It was designed to observe the solar wind approaching Earth, from a position near the Lagrangian point L1, and it is part of the International Solar-Terrestrial Physics (ISTP) Initiative . ... The original plan called for "Wind" to approach its final station over two years, undergoing two close encounters with the Moon to boost its speed. ... If however the object is moving , the encounter is not symmetric, and in the end the spacecraft may have gained or lost speed, depending on its trajectory. ...

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• Sun [Oulu]
• Plasma source [Oulu]
• Field-aligned potential drops [Oulu]

... 78.0, THAT GIVES FOR 65 MONTHS (2014, JUNE) DEVELOPMENT CURRENT 24 CYC- LES OF SOLAR ACTIVITY THE SMOOTHED MONTHLY MEAN SUNSPOT NUMBER W*June = 79.7 THE BEGINNING 24 CYCLES OF SOLAR ACTIVITY - I 2009 with W*=1.8 THE TIME OF THE CURRENT CYCLE MAXIMUM - IV 2014 THE HEIGHT OF THE MAXIMUM - Wmax = 81.9 THE INTERNATIONAL DAILY VALUE OF RELATIVE SUNSPOT NUMBER FOR 2014, DECEMBERR ACCORDING DATA OF 71 SOLAR OBSERVATORIES HAS MADE: 1.. 96 6.. 42 11.. 75 16..119 21.. 93 26.. 60 31.. 65 2.. 85 7.. 39m 12.. ...

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• http://www.izmiran.rssi.ru/services/saf/archive/en/2013/obzor20130107.en.txt
• http://www.izmiran.rssi.ru/services/saf/archive/en/2014/obzor20140105.en.txt
• http://www.izmiran.rssi.ru/services/saf/archive/en/2012/obzor20120102.en.txt

... Observatory . Public . Science . ... Science Users Information > Science Publications > Archive of the ESO Enews > ESO-Enews #25: December 2012 . ... ALMA . ... Phase 1 Proposals . ... Data Handling and Products . ... Science Data Products Forum . ... It is ALMA policy to make all science data public after a proprietary period of (usually) one year. As the first ALMA Cycle 0 data were released to the PIs one year ago, they are now becoming public. ... FIRST ALMA EARLY SCIENCE DATA PUBLIC . ...

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• ESO - Newsletter December 2015
• Fernando Comer n: curriculum
• ESO - Archive of the ESO Enews

... Outreach . ... I'm a PhD student at the Australian National University's Mt Stromlo observatory and am part of the Australia Telescope National Facility (ATNF) graduate program. I study the properties on nearby galaxies and investigate the evolution of the local universe. ... I run the RSAA Student Outreach Group which invites school children to participate in free astronomy outreach evenings. ... Copyright 2007 Emma Kirby. ... All Photos were taken by Emma Kirby unless otherwise stated. ...

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• RSAA Annual Report 1998
• Untitled1

December 2007 Astronotes 1 2007 in pictures from ENVISAT By Wendy McCorry, Science Communicator These images were taken by ENVISAT, the European Space Agency's Earth Observation spacecraft ­ the largest of its kind ever built. ... Clockwise from top left: ENVISAT's Medium Resolution Imaging Spectrometer (MERIS) captured this image of tropical cyclone Gamede sweeping across the Indian Ocean on 23 February 2007. ... ENVISAT captured this image of the wildfires in Southern California on 22 October. ...

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• December | Astronotes
• Orion | Astronotes
• Astronotes | Armagh Planetarium's astronomy news from across the Universe

Astronomy Picture of the Day . ... 23.12.2009 . ... 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. ... December . December 2009 . ... Publications with keywords: solstice - sunrise . Publications with words: solstice - sunrise . ...

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• Астронет > December Sunrise, Cape Sounion
• XWare > APOD

Project Tanagra Timing Analysis of Grating Data Vinay Kashyap (SAO) Jennifer Posson-Brown, Jeremy Drake, Kathy Reeves, Steve Saar (SAO), Raymond Wong, Thomas Lee (UC Davis), Alanna Connors (Eureka), Jeff Scargle (NASA/Ames) Tuesday , December 13, 2011 1 Darmok Tuesday , December 13, 2011 2 Darmok and Jalad at Tanagra Tuesday , December 13, 2011 3 Lightcurves and spectra with Chandra A different kind of dataset ...

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• Watching the Stars go `Round and `Round
• The AstroStat Slog 2008 December
• X--ray Activity and PMS Stars.