Description: La chromosphère (ou "sphère de couleur") du Soleil ou d'une autre étoile semblable au Soleil est la fine couche de l'atmosphère située directement au-dessus de la photosphère, qui est la couche plus dense à partir de laquelle la lumière du Soleil ou de l'étoile est émise. Lors d'une éclipse totale du Soleil, la chromosphère est visible sous la forme d'un léger anneau de gaz incandescents, principalement de l'hydrogène qui brille d'une couleur rouge, d'où son nom.

Related Terms:

• Couronne
• Photosphere
• Structure stellaire

Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher
The translation of this term and its definition is still awaiting approval

The OAE Multilingual Glossary is a project of the IAU Office of Astronomy for Education (OAE) in collaboration with the IAU Office of Astronomy Outreach (OAO). The terms and definitions were chosen, written and reviewed by a collective effort from the OAE, the OAE Centers and Nodes, the OAE National Astronomy Education Coordinators (NAECs) and other volunteers. You can find a full list of credits here. All glossary terms and their definitions are released under a Creative Commons CC BY-4.0 license and should be credited to "IAU OAE".