M band (infrared)

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In infrared astronomy, the M band is an atmospheric transmission window centered on 4.8 micrometres (in the mid-infrared).{{Citation |title=Photometry |date=1999 |work=Handbook of Infrared Astronomy |pages=44–72 |editor-last=Glass |editor-first=I. S. |url=https://www.cambridge.org/core/books/handbook-of-infrared-astronomy/photometry/F33ED2F867AA7AABB78B6C78A8FF67ED |access-date=2024-07-16 |series=Cambridge Observing Handbooks for Research Astronomers |place=Cambridge |publisher=Cambridge University Press |doi=10.1017/CBO9780511564949.004 |isbn=978-0-521-63311-6}}