Penumbra (disambiguation)

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

Penumbra may also refer to:

Entertainment

 * Penumbra (band), a French gothic metal band
 * Penumbra Diffuse, the second studio album by American progressive metal band Canvas Solaris
 * "Penumbra Phantasm", a song by Toby Fox heavily referenced in Homestuck tracks such as "Savior of the Waking World"
 * "Penumbra", a song by John Ireland
 * "Penumbra", a song by Tortoise
 * "Penumbra" (Star Trek: Deep Space Nine), a 1999 episode of Star Trek: Deep Space Nine
 * Penumbra (telenovela), Mexican telenovela
 * Penumbra (World of Darkness), a region in the World of Darkness line of role-playing games
 * Penumbra, a series of video games by Frictional Games consisting of:
 * Penumbra: Overture
 * Penumbra: Black Plague
 * Penumbra: Requiem

Companies

 * Penumbra Theatre Company, an African American theatre in Saint Paul, Minnesota
 * Penumbra (medical company), in Alameda, California

Other uses

 * Penumbra (law), a metaphor for rights implied in the United States Constitution
 * 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
 * Penumbra (Sun), the ring-shaped semi-bright region of a sunspot that surrounds the darker umbra
 * Penumbral lunar eclipse, an eclipse that occurs when the Moon passes through the Earth's penumbra
 * Billbergia 'Penumbra', a hybrid cultivar of the genus Billbergia in the Bromeliad family