Danjon Scale

Categories: Science | Astronomy
    • L=0—A very dark eclipse: during totality, the moon is nearly invisibleUNC Chapel Hill: Danjon Scale
    • L=1—Moon is gray or brownishUNC Chapel Hill: Danjon Scale
    • L=2—Moon is deep red or rust-coloredUNC Chapel Hill: Danjon Scale
    • L=3—Moon is brick redUNC Chapel Hill: Danjon Scale
    • L=4—Moon is very bright copper-red or orangeUNC Chapel Hill: Danjon Scale
  • The Danjon Scale is a five-step scale devised by French astronomer Andre-Louis Danjon to measure the brightness and color of the moon during a lunar eclipse.NASA: Danjon Scale

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