THE RELATIVE MONTHLY MEAN SUNSPOT NUMBER ON APRIL 2013 HAS MADE W apr.= ... THE INTERNATIONAL DAILY VALUE OF RELATIVE SUNSPOT NUMBER FOR 2013, APRIL ACCORDING DATA OF 70 SOLAR OBSERVATORIES HAS MADE 1.. 53 m 6.. ... Weekly Bulletin on Solar and Geomagnetic Activity Highlights on 29.04 - 05.05.2013 , Forecast on 06.04 - 13.05.2013, Carrington Rotations 2136 (17,78.04.2013) SUNSPOT-FORMING ACTIVITY OF THE SUN CHANGED FROM THE AVERAGE TO THE HIGH LEVELS. ... Class E(1-8A) AR RII/IV CME X / opt. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Monthly Sky Notes . ... Image credit: Julie Thompson / Armagh Planetarium) . ... These seven entrants and their class have won a free trip to the Planetarium.€а All entries are on display in our Exhibition Area.€а A number have been included in a special Christmas trailer running before all shows in our Digital Theatre throughout December so why not check out the works by the countryтАЩs budding new artists this Christmas break at Armagh Planetarium? ...

... HST . ... Missions . ... Data . ... Future Missions and . ... Missions Office . ... HST Peer Review Process . ... HST Overview . Overview . ... Servicing Missions . ... Cycle 24 Announcement . ... Retrieving HST Data . ... While long-duration gamma-ray bursts (LGRBs) result from the collapse of massive stars, the progenitors of short-duration gamma-ray bursts (SGRBs) are still unknown. Although SGRBs are widely thought to result from the in-spiral of compact binaries, this is a conjecture. ...

... Robert Naeye, Editor in Chief of Sky Telescope Magazine . ... NASA's Gamma-Ray Large Area Space Telescope (GLAST), recently renamed FERMI Gamma Ray Space Telescope, is a powerful space observatory that will open a wide window on the universe. ... He was recently the Senior Science Writer in the Astrophysics Science Division at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

daily,monthly plots . yearly plots The temperature on the platform is measured every two minutes by the laser ranging system. ... no data . ... dec00 .ps .pdf At the end of each year, summary plots are made for the temperature. ... A histogram of the yearly temperatures is plotted for each year. ... The daily median temperature varies by 6 degrees over the year. 98% of the time the temperature is between 65 and 85 F. The daily (Max - Min) temperature is relatively constant throughout the year. ...

... Central astronomical observatory at Pulkovo of Russian Academy of Sciences . ... INTAS 2001-0550 "The Solar-terrestrial climate link in the past millennia and its influence on future climate" . ... Programs of Presidium of Russian Academy of Sciences "Non-stationary phenomena in astronomy" . and "Solar activity and physical processes in the Sun-Earth system" . Program of Division for Physical Sciences of RAS No 16 "Solar Wind" . ...

Statistics of sunspot activity . The sunspot indices . ... Visual indices of solar activity . ... n - number of spot groups . A - Waldmeier class of unipolar spot groups without penumbra . B - class of bipolar spot groups without penumbra . C - class of bipolar spot groups with one penumbra pole . D - class of small bipolar spot groups with two penumbra poles . E - class of middle bipolar spot groups with two penumbra poles . ... H - class of unipolar penumbrated spot groups . ...

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). ...

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 | ...