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Glossary term: Blackbody

Description: A blackbody is defined as a body that absorbs radiation that falls on it without reflecting any of it. Therefore, it is a hypothetical object with perfect absorption and perfect reflection for all radiation and all wavelengths. The spectral distribution of thermal energy radiated by a blackbody (the pattern of intensity of blackbody radiation over a range of wavelengths and frequencies) depends only on its temperature. The radiation from stars, and their effective temperatures and colors, can be described by assuming that they are blackbodies.

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Term and definition status: 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".