| penumbra |
Literally partial shadow; the partially lighted area around any completely darkened area (umbra) of full shadow.
출처: www.astrology-numerology.com/glossary2.html
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|---|---|
| penumbra |
During an eclipse, the area of partial shadow.
출처: www.go-astronomy.com/glossary/astronomy-glossary-p...
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| penumbra f. |
the region of free space which is irradiated by primary photons coming from only part of the radiation source.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| penumbra |
Region, at the edge of the irradiation beam, in which the dose changes rapidly according to the distance to the axis of the beam. It is currently defined by the distance on a dose profile separating the points located at 20% and 80% of the dose respectively on the axis at a given depth in the medium.
출처: etoile.univ-lyon1.fr/ANGLAIS/sommary/glossary.html
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| penumbra |
literally, "dim light"; the outer filamentary region of a sunspot. perihelion
출처: www.astro.uio.no/ita/TNP/nineplanets/help.html
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