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. ...

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. ...

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). ...

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 . ...

... 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. ...

... 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. ...

... 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) . ...

... 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. ...

... 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) . ...

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 . ...

... 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. ...

... Armagh Planetarium . ... Universe . ... 25 Comments Space is something that fascinates many.€а Every day there are technological advances, new research being carried out and even historical space related anniversaries.€а Where would we be without those valuable [ ] . ... No Comments A new image from the European southern ObservatoryтАЩs Visible and Infrared Survey Telescope for Astronomy €а(VISTA) telescope reveals the glowing clouds of gas and filaments of dust surrounding hot young [ ] . ...

... 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 . ...

... About ATNF overview . ... Australia Telescope Steering Committee . ... Staff list | Student list | ... Email discussion lists . ... Murchison Radio-astronomy Observatory . ... Australia Telescope Online Archive (ATOA) . ... Virtual Radio Interferometer . ... Subject : International Virtual Observatory Alliance (IVOA)- . Interoperability Meeting, Pune, September 2004 . ... in Virtual Observatory (VO) related activities. ... as a part of the activities of the Virtual Observatory-India (VO-I) . ...

... Home Gallery Club Events Pulkovo Observatory, St. Petersburgh, Russia . ... Clear Sky Chart . ... Beyond New York City . ... Pulkovo Observatory, St. Petersburgh, Russia . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... Observing Resources for Amateur Astronomers - Part 3: Advanced Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by ....

... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Company's History . ... History . Brief History of Rocket and Space Technology . ... Flights Chronology . ... Project History . ISS Russian Segment . ... ISS 45/46 . ... Estimation of fulfilment quality dependance level of the reactivity test performed by astronauts in relation to tiredness and other neurobehavioral reactions in 12-months space flight on the ISS. ... 2015 JSC "S.P. Korolev RSC "Energia" . ...

... 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. ...

Astronomy . ... Institutions, Observatories . ... International Astronomical Union . ... Abastumani Astrophysical Observatory . Australian Astronomical Observatory . ... Byurakan Astrophysical Observatory . Hartebeesthoek Radio Astronomy Observatory . ... National Radio Astronomy Observatory . Nobeyama Radio Observatory . ... Pushchino Radio Astronomy Observatory . ... AGU journals . ... Astronomy and Astrophysics Springer . ... Astronomy Letters (ПАЖ) . ... Astrophysical Journal Letters . ...

Once students get the hang of it, they can find and measure the brightness of Delta Cephei in a few minutes. ... of Delta Cephei . ... Oct. ... The following table lists the measurements of Delta Cephei made by one amateur astronomer in autumn 1990. ... 4.0 . ... This activity is a simplified version of one that appeared in Hands-On Astrophysics, a series of activities prepared by the American Association of Variable Star Observers with support from the National Science Foundation. << previous page | ...

... A star was observed at different zenith distances during one night at the Engelgardt's Astronomical Observatory in the program of atmospheric extinction study at blue. ... The determination of the star's brightness was performed with the method of photon counting. ... Variable star. ... The brightness of the variable star was measured occasionally during the other nights, and moments of maximal values of brightness (15.59m) were received on nights 2­5, the 2nd table. ... JD 2452805. ...