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. ...

... 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. ...

... 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) . ...

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). ...

... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Flights Chronology . ... Acquiring new scientific information about the role of the right and the left heart in adaptation of the blood circulation system to long-term space flight conditions. ... Investigation of relations between hemodynamic and energetic characteristics of the heart in different phases of a long-term space flight. ... Data carrier "Cardiovector - Data". ... 2015 JSC "S.P. Korolev RSC "Energia" . ...

... Although visible every year at this time, the Perseids are expected to appear particularly active this year due to the relative absence of glare from the Moon during the peak. Young Suns of NGC 7129 . ... The Heart and Soul Nebulas . ... The Heart Nebula, officially dubbed IC 1805 and visible above on the right, has a shape reminiscent of a classical heart symbol. ... Mars to Appear Normal this August . ... Regardless of numerous urban legends circulating, Mars will a relatively normal August. ...

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 . ...

... Actual stars are expected to be more complicated than these simulations. ... The spot may be entirely visible most of the time (one would observe a prolonged flux minimum low), and then part of it may disappear over the horizon briefly and then return (slow rise and then fall back to constant level). ... With the set of observations taken here, I have information available from several comparison stars and color information. ... The period found must be consistent with the data from any given night....

... 2006 March 6 . Unexpected Comet Pojmanski Now Visible . ... Explanation: Have you ever seen a comet? ... Comet Pojmanski , officially designated C/2006 A1 and discovered only in January, now sports a turquoise tail several times longer than the full moon. Comet Pojmanski 's ion tail is due to gas particles expelled by the comet being pushed away from the Sun by the solar wind , the same wind that ionizes gas in the tail causing its blue tint. ... About APOD | ... NASA Official: Jay Norris. ...

... Also the help file was renamed the manual, formated for LaTeX and html, and to a large degree, rewritten. ... Increase maximum number of setup files to 50. ... 1995 July) . ... Also, only put pointing request in VLBA control files if this is not a DAR-only station (1995 October 4) . ... Allow in-line setup files much like the source and station catalogs. ... Allow specification of schedule input file name from main input. ... Adding SUMITEM input to allow specification of what is in the summary file...

... 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 [ ] . ...

... Apr 14, 2016 - Monthly Meeting . ... The Amateur Telescope Makers of Boston, Inc. ATMoB) is an astronomy club devoted to telescope making, observing, and studying the heavens. ... CURRENT MOON . ... April Sky . ... Lyrids Meteor Shower . ... Sources: NASA JPL Space Calendar , StarDate Online , Sky Telescope , Harvard-Smithsonian Center for Astrophysics , RASC Observer’s Handbook , Abrams Planetarium Sky Calendar and Astronomy Magazine . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... Home Links International Sidewalk Astronomy Night . ... Saturday night, April 12, 2008, is the 2nd International Sidewalk Astronomy Night.€а We call on all amateur astronomers to take their telescopes and binoculars out for the public to enjoy the wonders of the night sky.€а A first-quarter Moon will be visible, as will the planets Saturn and Mars.€а More information can be found at http://www.sidewalkastronomynight.com /, where you can register so people will know where to find you. ...

... 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. ...

... Tonight's Sky . ... The Magazine . ... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... Bright planets meet at dusk . ... Astronomy magazine subscribers can read the full article for free. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter....

... 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 . ...

CAL/OPS meetings M. Kirsch ESA/ESOC with input from the XMM FCT XMM-Newton | ESA/ESOC | HSO-OAX | ... Page 8 special events Collision avoidance in place (November 2011 ­ March 2012) Reaction wheel cage instability: · · XMM_SC-72, 2011-08-16, Reaction Wheel 1 unexpected increase in torque and current during stable pointing Switch of reaction wheel configuration from 1-2-3 to 2-3-4 in December 2011 4WD project · Wheel4 tested up to 3750 rpm in July MCS migration Fuel migration XMM-Newton | ...

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 | ...