THE RELATIVE MONTHLY MEAN SUNSPOT NUMBER ON MARCH 2016 HAS MADE Wmarch = 32.9, 54.9 ( new ) THAT GIVES FOR 80 MONTHS (2015, SEPTEMBER) DEVELOPMENT CURRENT 24 CYCLE OF SOLAR ACTIVITY THE SMOOTHED MONTHLY MEAN SUNSPOT NUMBER W*sep. = 39.6; 66.0 - (in new system ); W*aug. = 39.8; 66.3 - (in new system ); - On July 1, 2015 Centre in Brussels moved to a new system of cal- culation the relative ... Almost all the work using smooth W* have to lead to a new system, if it remains. ...

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• http://www.izmiran.rssi.ru/services/saf/archive/en/2012/obzor20120102.en.txt
• http://www.izmiran.rssi.ru/services/saf/archive/en/2012/obzor20120206.en.txt
• http://www.izmiran.rssi.ru/services/saf/archive/en/2011/obzor20111003.en.txt

Armagh Observatory press release, 1999 April 21st. Research by David Asher and Mark Bailey , of Armagh Observatory, and Vacheslav Emel'yanenko , of South Ural University, Chelyabinsk, Russia, has explained the unexpected, spectacular shower of bright meteors seen in the small hours of 17 November last year. ... The observed meteors are produced by the collision with the Earth's atmosphere of small dust particles ejected from the parent comet, Tempel-Tuttle . ...

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• Armagh Observatory Weather January 2005
• Armagh Observatory
• MILD DRY FEBRUARY

... Begin ­ End Interval­Interval 01:35 ­ 04:05 09:30 ­ 12:05 16:00 ­ 16:50 17:00 ­ 22:10 Days Needed at This Interval 6 11 11 11 Time Constraints (Must Be Justified in the Prop osal Text) For J0251+26 (visible at LST 01:35 - 04:05): 6 x 0.75 h monthly sessions. For J1048+23 (visible at LST 09:30 - 12:05): 3 x 1 h daily sessions; 3 x 1 h weekly sessions starting 1 week after the last daily session; 5 x 1 h monthly sessions starting 1 month after the last weekly session. ...

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• http://www.naic.edu/vscience/schedule/2015Fall/FerdmantagP2789.pdf
• http://www.naic.edu/vscience/schedule/2015Fall/VantagP2680.pdf
• http://www.naic.edu/vscience/schedule/2013Fall/VantagP2680.pdf

... HST Overview . ... Proposal ID = 12549 Principle Investigator = Thomas Brown - Space Telescope Science Institute Title = "The Formation History of the Ultra-Faint Dwarf Galaxies" Time = May 6, 2012 01:57:28 - 06:22:12 Target = CANES-VENATICI-II Instrument = ACS/WFC, WFC3/UVIS . ... The standard paradigm for the evolution of galaxies begins with the formation of large numbers of low mass dwarf galaxies. ... However, there appear to be only a few dozen dwarfs galaxies around our own Milky Way galaxy. ...

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Astronotes Armagh Planetarium's Stellar Blog! ... Monthly Sky Notes . ... Posted on April 6, 2016 | No Comments Spring has truly sprung. ... Continue Reading.. Posted on March 1, 2016 | No Comments See you later February, youтАЩve been a wonderful month, but now it is time to welcome March. ... Posted on February 2, 2016 | ... Posted on January 7, 2016 | ... Posted on December 3, 2015 | ... Posted on November 4, 2015 | ... Posted on October 5, 2015 | ... Posted on September 3, 2015 | ...

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• Monthly Sky Notes | Astronotes - Part 4
• Monthly Sky Notes | Astronotes - Part 2
• Monthly Sky Notes | Astronotes - Part 6

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. ...

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• http://www.wdcb.ru/stp/data/solar.act/flux10.7/%20%20penticton.txt
• "STP Data" STP Data

... Henrietta Leavitt Calibrates the Stars . ... X Ray Moon . ... This x-ray image of the Moon was made by the orbiting ROSAT (R ntgensatellit) Observatory in 1990. ... SOHO, the space-based SOlar and Heliospheric Observatory, has become by far the reigning champion facility for discovering comets, its total having recently reached 200. ... Full Throttle For Deep Space 1 . ... The bright stars above are well known as heart of the Trapezium, an open cluster of stars in the center of the Orion Nebula. ...

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... Atmospheric Extinction Coefficients at La Silla (from Geneva Observatory) . Differential atmospheric refraction . ... Precipitable Water Vapour and local Relative Humidity . Wind, Air Temperature, Dew Point and Relative Humidity Statistics, 2002 to 2006 (pdf) and seasonal, 1999 to 2007 (pdf) . ... Wind Velocity and gust at ground level (1998-2007) and at the tropopause level . ... Environmental Conditions at ESO Observatories (Trimestrial Reports, discontinued in 1999) . ...

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• ESO - I see unexpected boxy emission-like features in my REDL spectra - where
• ESO - ALMA
• The Very Large Telescope Project

... Observing . ... Home Education Workshops at Adorama Astronomy Workshop: Observing Variable Stars from the City ? February 15, 2015 . ... 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 €аFor the Amateur Astronomers Association of New York . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

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• Pulkovo Observatory, St. Petersburgh, Russia ? Amateur Astronomers Association
• Observing Out-Of-Town ? Amateur Astronomers Association of New York
• This Month?s Sky ? 2014 ? Amateur Astronomers Association of New York

... Current APO Weather . ... Search Site . ... Information for New Users . ... Technical Staff pages . Night Logs and Mailing Lists (maintained by APO) . ... Technical Documents and Database Search . ... Observer's Documentation and Procedures . ... Problem Reporting and APO Technical Documents Database Search . ... APO Drawing/Document Management Procedures . ... APO Technical Documents Database Search . Home Astrophysical Research Consortium . ... Mail Lists (maintained by APO) . ...

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• Scale adjustment
• Weather Summary

This service contributes to the International Service of Geomagnetic Indices (ISGI) of the IAGA . ... The Kp numbers of the previous month are available in tabular format . ... There are available also historical and current Kp and derived indices per anonoymos FTP (see below). ... U.S.A. FTP server: ftp://ftp.ngdc.noaa.gov/STP/GEOMAGNETIC_DATA/INDICES/KP_AP/ . monthly update) . ... contains the monthly Kp / ap tables in a simple text format readable for both humans and computers (*.tab). ...

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• Format Documentation of *.wdc Files
• WDC-C2 Kyoto, final Dst monthly plot and table

... Final astrometric results. ... 2009MNRAS_394_1037E Informations. relative to: reference body is an occulted or eclipsed satellite . reference frame: astrometric centre of frame: topocenter for mutual occultation or heliocenter for mutual eclipse epoch of equinox: J2000 time scale: UTC reduction: from mutual occultations and eclipses coordinates: Position angle (topocentric for mutual occultation or heliocentric for mutual ... Hour of the astrometric data (UTC) 7. ...

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• jg0027
• jg0036
• jg0026

... Radio Astronomy . ... ASRAS Board Members . ... To see the most up to date news and events happening with ASRAS log in with your user name and password and then click on the Activities page. ... Messier Marathon (Member Observing) CANCELLED Saturday, April 9, 2016 9:00 PM Location:Farash Center Ionia NY . ... ASRAS Members meeting - Friday May 6 at Farash Center - Ionia NY . ... ASRAS Board members meeting - monday May 9 @ Farash Center Monday, May 9, 2016 7:00 PM Location:Farash Center Ionia NY . ...

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• Activity Feed

... Clubs . ... PUBLIC Telescopic observing is conducted at the Wheaton College Observatory every clear Friday (call for times) when college is in session. ... The College has a 12.5 " Newtonian/cassegrain telescope. ... For more information see the North Shore Amateur Astronomy Club page. ... For more information see the North Shore Amateur Astronomy Club page and the college's page . ... Aldrich Astronomical Society Paxton, MA . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

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... 2008 February 5 . Three Month Composite of Comet Holmes . ... Explanation: How has Comet Holmes changed? Since brightening unexpectedly by nearly one million fold in late October, the last three months have found the coma of Comet 17P/Holmes both expanding and fading. This spectacular composite image shows how the coma and tail of Comet Holmes have changed. ... The extent of the coma currently makes Comet Holmes over five times the physical size of our Sun. ... About APOD | ...

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• APOD: 2000 February 14 - An Unexpected Asteroid Valentine
• APOD: 2013 February 7 - Comet Lemmon near the South Celestial Pole
• APOD: 2011 May 23 - An Unexpected Flare from the Crab Nebula

. Statistics of sunspot activity . The sunspot indices . My observations . NGDC's observations . The solar regions . Links . About authors . Russian pages . 2016 . January . February . March . April . May . June . July . August . September . October . November . December . Home . Solar activity in 2016 . Visual indices of solar activity by author's observations . Average by . month . I . II . III . IV . V . VI . VII . VIII . IX . X . XI . XII . days . months .

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... Magnetic storms online . ... Geomagnetic activity forecast . ... February : 2016 . ... No magnetic storm is expected . From 2 February 2016 to 28 February 2016 the following magnetic storms and disturbances are expected: . February 03, 2016 geomagnetic disturbances . ... February 08, 2016 geomagnetic storm of level G1 (minor) . ... February 16, 2016 geomagnetic disturbances 2 February 2016 - 28 February 2016 . ... Probability of a magnetic storm . ... Probability of a strong magnetic storm . ...

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• Space weather forecast February 01, 2015
• Space weather forecast February 05, 2015
• Space weather forecast February 04, 2015

... EXPNO SOURCE FRQ Corr DOY DY: DATE UT RANGE #TEL TELESCOPES VS04h J1218-46 C Pent 32 Su:Feb-01 19:30 - 02:00 3 HH MP CD VS02x J1512-09 C Pent 33 Mo:Feb-02 21:00 - 02:00 3 KA MP CD VS02b J1613+34 C Mitk 35 We:Feb-04 19:00 - 04:00 5 UD NT KA MP TR VS02r J1550+05 C Pent 36 Th:Feb-05 19:00 - 00:00 3 UD KA MP VS07f J1727+45 C Mitk 37 Fr:Feb-06 20:00 - 01:00 4 KA MP TR CD V030p2 1624+416 C Socr 38 Sa:Feb-07 05:00 - 09:00 9 VLBA HALCA SAFE HOLD V140b4 CEN-A C ...

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• Release of 22 Feb 1996
• Lunar Observing Activities for Wildflowers in the Sky
• Parkesreport

The Special Astrophysical Observatory of the Russian Academy of Sciences will organize a traditional International conference ?Physics and Evolution of Magnetic and Related stars? during the period from August 25 to August 31, 2014. ... evolution of CP and related stars, . ... interplay of pulsations and magnetism in B, A, and F stars, . ... chemical abundance patterns of CP and related stars, . magnetic white dwarfs, . ... Laboratory for the Stellar Magnetism Study of SAO of RAS . ...

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... APT Activities and Science Results 3. ... APT Secretary Philip Edwards (ISAS) reviewed the aims of the APT (http://www.vsop.isas.ac.jp/apt/DefinitionAndAims.html). ... The Australia Telescope Compact Array, and Ceduna, Hartebeesthoek, Kashima, Mopra, Parkes, and Shanghai telescopes of the Asia-Pacific Telescope participated in these observations. ... In the absence of Tetsuo Sasao, Philip Edwards briefly described results of the APT 22 GHz observations conducted from October 1st to 5th, 1997. ...

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