Lectionary Calendar
Monday, December 23rd, 2024
the Fourth Week of Advent
the Fourth Week of Advent
advertisement
advertisement
advertisement
Attention!
Tired of seeing ads while studying? Now you can enjoy an "Ads Free" version of the site for as little as 10¢ a day and support a great cause!
Click here to learn more!
Click here to learn more!
Bible Encyclopedias
Umbra
1911 Encyclopedia Britannica
or Resource Toolbox
Additional Links
(Lat. for shade or shadow), in astronomy, the completely dark portion of the shadow of a heavenly body, filling the space within which the sun is entirely hidden. The body being supposed spherical, the umbra is a cone circumscribing both the sun and the body that casts the shadow. The term is also given to the interior and darkest part of a sunspot. (See SUN; ECLIPSE.)
Copyright Statement
These files are public domain.
These files are public domain.
Bibliography Information
Chisholm, Hugh, General Editor. Entry for 'Umbra'. 1911 Encyclopedia Britanica. https://www.studylight.org/encyclopedias/eng/bri/u/umbra.html. 1910.
Chisholm, Hugh, General Editor. Entry for 'Umbra'. 1911 Encyclopedia Britanica. https://www.studylight.org/encyclopedias/eng/bri/u/umbra.html. 1910.
