Penumbra (disambiguation)

The penumbra is the part of a shadow where the light source is only partially blocked.

Penumbra may also refer to:

Science

• Penumbra (Sun), the ring-shaped semi-bright region of a sunspot that surrounds the darker umbra
• Penumbra (medicine), surviving tissue at the margin of an ischemic event (such as a stroke) which is in danger of hypoxia and subsequent cell death
• Billbergia 'Penumbra', a hybrid cultivar of the genus Billbergia in the Bromeliad family
• Penumbral lunar eclipse, an eclipse that occurs when the Moon passes through the Earth’s penumbra

Law

• Penumbra (law), a metaphor for rights implied in the United States Constitution

TV

• Penumbra (Star Trek: Deep Space Nine), a 1999 episode of Star Trek: Deep Space Nine
• Penumbra (telenovela), Mexican telenovela

Games

• Penumbra (video game series), a series of video games by Frictional Games consisting of Penumbra: Overture, Penumbra: Black Plague and Penumbra: Requiem
• Penumbra (World of Darkness), a region in the World of Darkness line of role-playing games

Music

• "Penumbra", song by John Ireland
• Penumbra (band), a French Gothic Metal band
• Penumbra Diffuse, the second studio album by American progressive metal band Canvas Solaris

See also

• Penumbra Theatre Company, an African American theatre in Saint Paul, Minnesota