... Insert date: . Day: . Month: . ... This CGI -script calculates a day of week of the given date, Julian date of Greenwich noon JD and extracts from the database indices of solar activity: Wolf number for the day W , monthly W m and yealy means W y of Wolf number for month and year of the date. The prediction of Wolf number (which was made in 1998 and, hence, lost actuality) is also presented. The database uses solar activity data got from server of National Geophysical Data Center . ...

Multi-Wavelength investigations of the Sun and modern problems of solar activity . SAO RAS . ... Major topics of the conference: . ... Modern observational methods for solar investigations. ... SAO RAS) - chairman . ... Special Astrophysical Observatory of the Russian Academy of Sciences (SAO RAS) together with the Main (Pulkovo) Astronomical Observatory are carring out the All-Russian conference on solar physics "Multi-Wavelength Investigations of the Sun and modern problems of solar activity". ...