Ciel Extrême wants to share a commun passion, observations, specific studies, advices on books, instrumentation comments, etc., providing the subject is the deep sky (nebulae, galaxies, stars clusters, ...).

Ciel Extrême wants to promote before all field observing (written descriptions, drawings, photography, CCD imaging).

For this link to work, a double circulation must be established. If you read and appreciate this publication, you may participate directly and send in observations, articles or whatever kind of deep sky participation you can think of.

For Ciel Extrême to stay a lively publication, varied and in constant evolution, a maximum number of regular or occasional contributers is welcome.

Pour que le Ciel Profond vive et se développe en France, rejoignez-nous.