This site is not maintained anymore. For the mission-long complete Yohkoh data set, go to the
Yohkoh Legacy data Archive .

The solar cycle in X-rays



Yohkoh Solar Observatory



This website is dedicated to the Yohkoh solar observatory satellite, a cooperative mission of Japan, the USA, and the UK. Yohkoh was launched in 1991, and observed the solar atmosphere in X-ray radiation continuously for ten years.

In the pages within this site you will find links to a variety of information about Yohkoh, about the instruments on board, about the solar data, and about research that resulted from this collaboration. Links to image galleries and press releases are also provided. Each of the links below corresponds to a category of web addresses. The categories are the following:

If you do not find the link you are looking for here, or if you have suggestions, please direct your comments/questions to us at the address below. This webpage is not maintained anymore. For the mission-long complete Yohkoh data set, go to the Yohkoh Legacy data Archive.




Version with frames


Yohkoh Legacy data Archive at Montana State University