The internet is filled with information about the Sun. Aimed at a wide range of audiences, from children to professional astronomers, the topics vary, from radio to high energy observations, prehistoric and ancient knowledge, to cutting-edge discoveries. This incomplete list will be growing (with your help) during 2009 to include as many links as possible.

General information about the Sun:

Stanford Solar Center
NASA - Sun-Earth Day - Living in the Atmosphere of the Sun
NASA Cosmos
NASA Cosmicopedia
Sun - Wikipedia, the free encyclopaedia
A handy timeline of Solar Astronomy.

Ground observatories:

High Altitude Observatory, a division within the Earth and Sun Systems Laboratory, in Boulder (Colorado, USA)
Swedish Institute for Solar Physics, part of the Royal Swedish Academy of science, in Stockolm (Sweeden)
National Solar Observatory, in Arizoa (USA)
Mauna Loa Solar Observatory, in Hawaii.
Astronomical Observatory - University of Coimbra, in Portugal.
Observatoire de Paris, in France.
Mount Wilson Observatory, in Atlanta (Georgia, USA)
Birmingham Solar Oscillations Network(BiSON), from the University of Birmingham
GONG - Global Oscillation Network Group
California State University, Northridge - San Fernando Observatory
Big Bear Solar Observatory
Mees Solar Observatory
Wilcox Solar Observatory, at Stanford University (USA)
Virtual Solar Observatory, which takes data from many sources.
German solar observatories, in Tenerife (Spain)
Themis, solar telescope in Tenerife (Spain) belonging to Spain, Italy, and France
Dutch Open Telescope, located in La Palma (Tenerife)
Gallery on Ancient Observatories

Udaipur Solar Observatory, Udaipur, India -

Satellites and Rockets:

STEREO Mission, a combination of 2 satellites orbiting ahead and behind the Earth.
Solar and Heliospheric Observatory (SOHO), a joint ESA/NASA mission, observing from the advantage point L1.
Yohkoh Solar Observatory, or Solar-A observed the Sun from 1991 to 2005
Hinode, or Solar-B, launched on 2006
The Transition Region and Coronal Explorer (TRACE), launched in 1981
Solar Maximum Mission (SMM), a NASA mission that lasted from 1980 to 1989.
PICARD, a mission dedicated to measure the absolute total and spectral solar irradiance, the diameter and solar shape, and probing the Sun’s interior by helioseismology.
Very high Angular resolution Ultraviolet Tescope (VAULT), developed at NRL.

Research institutions:

Max Planck Institute for Solar System Research, in Lindau (Germany)
Centro de Astrofísica da Universidade do Porto, in Portugal.
NASA/Marshall Solar Physics
Instituto de Astrofísica de Canarias, (IAC) in Tenerife (Spain)
SOLAIRE Training Network. SOLAIRE is a Research Training Network which aims to carry out research through collaboration of its partners and to provide intensive training of researchers at the initial stages of their careers.
European Helio- and Asteroseismology Network (HELAS). HELAS aims to advance Helio- and Asteroseismology, by coordinating the activities of researchers in the field. This will be achieved through the exchange of knowledge, data and tools to proceed with the future steps in a well-prepared manner and to foster the existing synergies of the field.
Institut d’Astrophysique Spatiale (Orsay, France)  is being involved in space solar projects for many years, from rockets to satellites like SOHO, STEREO, PICARD, etc.
Physical Research Laboratory, Ahmedabad, India - Centre for space and physical research.

Sources of solar images

NASA Sun Earth Media Viewer: Live Solar Images.
Solar images at SDAC.
Nobeyama Lastest Radio Image of the Sun.
STEREO - Science Center - Latest Images.
Latest Solar Observations, from the University of Berkeley.
ISOON gathers images from many sources like Sac Peak, Kitt Peak, Mauna Loa, …)
Astronomy Picture Of the Day (APOD) - Sun
Solar Movies from Hinode.

Space Weather

European Space Weather Portal
ESA Space Weather webserver
Space Weather and Europe - an Educational Tool with the Sun — News and information about meteor showers, solar flares, auroras, and near-Earth asteroids.
Space Weather Station
Space Wearther Center
Exploratorium’s Space Weather Research Explorer
Today’s Space Weather, a service of NOAA / Space Weather Prediction Center.
SOHO Space Weather

Educational activities:

SOHO Classroom activities
HINODE Educators resource
Dawn of IYA2009 activities
Linda S. Knisely activities on the Solar physics
Solar Storms and You: Classroom Activities
Plotting Sunspot Activity, from the University of Michigan, adapted from
Windows to the Universe
Space Weather Project, Curriculum Resources for Secondary Schools, from the Univeristy of La Trobe.
The Exploration of the Earth’s Magnetosphere, educational web site by David P. Stern and Mauricio Peredo.
The Human Impacts of Solar Storms and Space Weather, from Sten Odenwald
The International Heliophysical Year, has available a lot of solar material.
SWEETS Space Weather activities. Includes several downloadable features, like the SWEETS Space Weather DVD.
The Sun, Gene Smith’s Astronomy Tutorial, at the University of California, San Diego
Project CLEA, to calculate the period of rotation of sun using GONG images.
Australia Telescope Outreach and Education
YOHKOH Outreach
Making an instrument to see spectral lines with a cardboard box and a CD. (related powerpoint about spectroscopy, 13 Mb )
Paper Plate Education has many examples (and videos) of hands on activities.
Sun 4 all, funded by Ciência Viva (Portugal), aims to promote science in general and astronomy, in particular among students.
Build a Solar Filter for Your Telescope, by Michael Portuesi.
The Solar week, as cited on our news.

Simple Sundial

Further links about the Sun:

Resources of solar astronomy from Astro WEb
Solar physics on the web.
NSO: Solar Research Resources.

Information about Global Climate Warming and its relation with the Sun:

Changing Sun, Changing Climate, from the American Institute of Physics.
BBC NEWS | Science/Nature | Debating the Sun’s effect on climate

If you spot any mistake or you would like to add a link, please let us know!


  1. Thank you for including Sun|trek in your list of useful sites. I lead the Sun|trek project and would love to become more involved in and informed about IYA activities.

    Is it possible for the resources on Sun|trek to be linked to your resources list?

    Many thanks,
    Helen Mason

  2. [...] Resources [...]

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