Introduction
Sunspot Activity Notes
Solar Observing CD-ROM
Sunspot Development
Disk Animations
Disk Drawings
Eclipses of the Sun
Glossary
Hydrogen Alpha
Latest Disk Animation
Latest Disk Drawing
Sunspot Measurements
Observing the Sun
Parallactic Angle
Software
Solar Books
Stonyhurst Disks
The Sun as viewed from the Earth
Sunspot Area
Sunspot Location
Sunspot Numbers
Sunspot Trends
Transits
Useful Links
What's New

Listed here are various links to other web pages that are related to the Sun and which I have found useful and informative.

  • The Astronomer. This organisation is aimed at the active astronomical observer. It issues a monthly magazine and email circulars for rapid notification of astronomical discoveries and events. The monthly magazine and web site include details of subscriber's solar observations.

  • The British Astronomical Association. This organisation, founded in 1890, has a bimonthly Journal, circulars, regular meetings and a variety of sections. One of these is the solar section that issues a monthly newsletter giving a monthly summary of solar activity from member's observations.

  • The International Sunspot Number is the definitive indicator of sunspot activity. It has been calculated daily from 1749. Currently the Sunspot Index Data Center of the Observatoire Royal de Belgigue is responsible for its derivation. Daily, monthly, smoothed monthly and yearly averaged values are available in addition to various plots of this sunspot number.

  • The Sky & Telescope magazine has several articles relating to the Sun available on their web site. One of these is on how to observe the Sun safely.

  • The Society for Popular Astronomy have a solar section web page that contains an informative article on solar observing.

  • The SOHO spacecraft, a joint ESA/NASA mission, observes the Sun at a variety of wavelengths and produced spectacular solar images and results. These include excellent recent white light images (select the SOHO MDI Intensitygram, Full Disk images for a date selected from the Soho Summary Data column of the latest images page). There is also a NASA mirror web site.

  • Details of future solar eclipses can be found on the Fred Espenak web site.

  • The Space Environment Center of NOAA provided information on today's space weather. This site includes current images of the Sun in white light and H-alpha from several professional solar observatories around the world.

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Last updated on 22 April 2002.